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#1
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD |
#2
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. I'd be surprised if it used two relays for dip beam. No reason they'd be on separately. Of course if it has a CAN bus system, all bets are off. -- *7up is good for you, signed snow white* Dave Plowman London SW To e-mail, change noise into sound. |
#3
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Not being a car electrics expert, but if the normal beam works, checking the
fuses you checked is hardly going to be the place to look. I'd have though that they would be only switching a single pole in any case so maybe one needs to be a bit more discriminating when following the wiring. Id be first tempted to look for exposed wires that might have suffered some damage before giving up though. Brian -- From the Sofa of Brian Gaff Reply address is active Remember, if you don't like where I post or what I say, you don't have to read my posts! :-) "JD" wrote in message ... Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD |
#4
Posted to uk.d-i-y
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD writes: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. Check the handbook. That info has been in the handbook for all cars I've owned and friend's cars I've repaired. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#5
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 03/12/2015 14:28, JD wrote:
Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD Cross-posted to car NG where Mr Cheerful (and others) will almost certainly know! |
#6
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 03/12/2015 21:38, newshound wrote:
On 03/12/2015 14:28, JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD Cross-posted to car NG where Mr Cheerful (and others) will almost certainly know! If only one headlamp works ok and no power shows at the other bulb, then the most likely fault is a blown headlamp fuse. Autodata is incomplete regarding the fuse box contents, usually there will be one fuse for each main beam and one for each dip beam, so 4 fuses in total. if in doubt as to which is which, just check them all. Turn the lights on and check for power on each side of every fuse, the fuse that has power on one side and not the other is the one. |
#7
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Mrcheerful wrote in
: On 03/12/2015 21:38, newshound wrote: On 03/12/2015 14:28, JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD Cross-posted to car NG where Mr Cheerful (and others) will almost certainly know! If only one headlamp works ok and no power shows at the other bulb, then the most likely fault is a blown headlamp fuse. Autodata is incomplete regarding the fuse box contents, usually there will be one fuse for each main beam and one for each dip beam, so 4 fuses in total. if in doubt as to which is which, just check them all. Turn the lights on and check for power on each side of every fuse, the fuse that has power on one side and not the other is the one. Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. Does this indicate a broken wire somewhere? If so, would it make sense to simply take a 2" piece of wire with the ends stripped, and wedge one end into the positive side of the nearside lowbeam fuse socket and then jam the other end into the positive side of the offside lowbeam fuse socket - and then insert the fuses, whichch would keep the wire securely in place at both ends? Yes, it's a Jerry-rig solution, but it should work in theory, shouldn't it? If you agree that thsi should work without any major problems, I'll do that rather than spend what could be an eternity out in the cold trying to trace the elusive break. TIA JD |
#8
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
JD wrote:
Mrcheerful wrote in : On 03/12/2015 21:38, newshound wrote: On 03/12/2015 14:28, JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD Cross-posted to car NG where Mr Cheerful (and others) will almost certainly know! If only one headlamp works ok and no power shows at the other bulb, then the most likely fault is a blown headlamp fuse. Autodata is incomplete regarding the fuse box contents, usually there will be one fuse for each main beam and one for each dip beam, so 4 fuses in total. if in doubt as to which is which, just check them all. Turn the lights on and check for power on each side of every fuse, the fuse that has power on one side and not the other is the one. Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. Does this indicate a broken wire somewhere? [snip] What you've written does not make sense. If you take the fuse out of course one side of the fuse socket will have voltage - from the battery; and the other side - to the light - will not. So if the fuse is good it will carry the current from one side of its socket to the other. What might be happening is that the fuse is not connecting properly in the socket. Or that when mechanically stressed by insertion into the socket it actually goes open-circuit. I suggest you try a new fuse in its place. -- Graham J |
#9
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In message , Graham J
writes What you've written does not make sense. If you take the fuse out of course one side of the fuse socket will have voltage - from the battery; and the other side - to the light - will not. So if the fuse is good it will carry the current from one side of its socket to the other. What might be happening is that the fuse is not connecting properly in the socket. Or that when mechanically stressed by insertion into the socket it actually goes open-circuit. I suggest you try a new fuse in its place. Or swap with the good one? -- Tim Lamb |
#10
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD wrote: Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. That would be correct if the fuse was good. Does this indicate a broken wire somewhere? Is there volts between the fuse and ground? -- *I have plenty of talent and vision. I just don't care. Dave Plowman London SW To e-mail, change noise into sound. |
#11
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 04/12/2015 15:20, JD wrote:
Mrcheerful wrote in : On 03/12/2015 21:38, newshound wrote: On 03/12/2015 14:28, JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. There are a couple of relays hidden behind the facia under the steering wheel. Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. Many thanks, JD Cross-posted to car NG where Mr Cheerful (and others) will almost certainly know! If only one headlamp works ok and no power shows at the other bulb, then the most likely fault is a blown headlamp fuse. Autodata is incomplete regarding the fuse box contents, usually there will be one fuse for each main beam and one for each dip beam, so 4 fuses in total. if in doubt as to which is which, just check them all. Turn the lights on and check for power on each side of every fuse, the fuse that has power on one side and not the other is the one. Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. Does this indicate a broken wire somewhere? If so, would it make sense to simply take a 2" piece of wire with the ends stripped, and wedge one end into the positive side of the nearside lowbeam fuse socket and then jam the other end into the positive side of the offside lowbeam fuse socket - and then insert the fuses, whichch would keep the wire securely in place at both ends? Yes, it's a Jerry-rig solution, but it should work in theory, shouldn't it? If you agree that thsi should work without any major problems, I'll do that rather than spend what could be an eternity out in the cold trying to trace the elusive break. TIA JD Why **** about dangerously? Do the job properly and stop putting others at risk. |
#12
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On Fri, 4 Dec 2015 15:42:46 +0000, Tim Lamb wrote:
What you've written does not make sense. If you take the fuse out of course one side of the fuse socket will have voltage - from the battery; ... When the lights are supposed to be on ... ... and the other side - to the light - will not. So if the fuse is good it will carry the current from one side of its socket to the other. What might be happening is that the fuse is not connecting properly in the socket. Or that when mechanically stressed by insertion into the socket it actually goes open-circuit. I suggest you try a new fuse in its place. Or swap with the good one? Which may become a bad fuse if there is an overload in that circuit, same for a nw fuse of course. Is the OP checking the fuses visually? It is sometimes not visually obvious that a fuse has blown, it needs an elctrical test really. -- Cheers Dave. |
#13
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On Thursday, 3 December 2015 14:28:53 UTC, JD wrote:
Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine What check did you make? Visual? Electrical? |
#14
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Dave Liquorice wrote:
Which may become a bad fuse if there is an overload in that circuit, same for a nw fuse of course. Is the OP checking the fuses visually? It is sometimes not visually obvious that a fuse has blown, it needs an electrical test really. When I had a intermittent earth fault in my car wiring, I produced a very useful test lead. I took an old headlamp bulb (well, the main beam filament is still OK, how could I throw it away?) and soldered on a pair of leads with crock clips. In place of the fuse which kept blowing I then connected this assembly. Whilst all was well on the load side, the circuits worked as normal, the bulb filament was still cold. When the faulty cable touched earthed metal, the bulb glowed brightly, but there was no dangerous overcurrent. NB do this carefully, as the circuit is no longer protected. Chris -- Chris J Dixon Nottingham UK Plant amazing Acers. |
#15
Posted to uk.d-i-y
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
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#16
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Tim Lamb wrote in news:244COuS2RbYWFw22
@marfordfarm.demon.co.uk: So if the fuse is good it will carry the current from one side of its socket to the other. What might be happening is that the fuse is not connecting properly in the socket. Or that when mechanically stressed by insertion into the socket it actually goes open-circuit. I suggest you try a new fuse in its place. Or swap with the good one? I did try that and it made no difference. JD |
#17
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 05/12/2015 10:02, JD wrote:
Tim Lamb wrote in news:244COuS2RbYWFw22 @marfordfarm.demon.co.uk: So if the fuse is good it will carry the current from one side of its socket to the other. What might be happening is that the fuse is not connecting properly in the socket. Or that when mechanically stressed by insertion into the socket it actually goes open-circuit. I suggest you try a new fuse in its place. Or swap with the good one? I did try that and it made no difference. JD the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. |
#18
Posted to uk.d-i-y,uk.rec.cars.maintenance
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Dave Plowman (News)" wrote in
: In article , JD wrote: Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. That would be correct if the fuse was good. Does this indicate a broken wire somewhere? Is there volts between the fuse and ground? No, there is zero volts between the ssde of the fuse socket that is supposed to be live, and ground. JD |
#19
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Dave Liquorice" wrote in
ll.co.uk: Which may become a bad fuse if there is an overload in that circuit, same for a nw fuse of course. Is the OP checking the fuses visually? It is sometimes not visually obvious that a fuse has blown, it needs an elctrical test really. The fuses are fine; I've swapped the left and right fuses over and one headlight comes on and the other still doesn't, same as before. JD |
#20
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Mrcheerful wrote in news:NKy8y.481307$wD3.212918
@fx45.am4: the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. Thanks; I was thinking similar, but my idea is to solder a short lead from the live side of the nearside headlight fuse holder to the supposedly live (but not) side of the offside headlight fuse holder. That way, I'd have a fuse between the battery positive and the headlight. That should be a simple, effective fix, yes? JD |
#21
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
JD wrote in
: Mrcheerful wrote in news:NKy8y.481307$wD3.212918 @fx45.am4: the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. Thanks; I was thinking similar, but my idea is to solder a short lead from the live side of the nearside headlight fuse holder to the supposedly live (but not) side of the offside headlight fuse holder. That way, I'd have a fuse between the battery positive and the headlight. That should be a simple, effective fix, yes? JD ......or would that overload a relay or the healight switch? |
#22
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 05/12/15 10:45, JD wrote:
JD wrote in : Mrcheerful wrote in news:NKy8y.481307$wD3.212918 @fx45.am4: the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. Thanks; I was thinking similar, but my idea is to solder a short lead from the live side of the nearside headlight fuse holder to the supposedly live (but not) side of the offside headlight fuse holder. That way, I'd have a fuse between the battery positive and the headlight. That should be a simple, effective fix, yes? JD .....or would that overload a relay or the healight switch? Probably. Its almost certainly either a duff wire joint or the relay for that bulb -- the biggest threat to humanity comes from socialism, which has utterly diverted our attention away from what really matters to our existential survival, to indulging in navel gazing and faux moral investigations into what the world ought to be, whilst we fail utterly to deal with what it actually is. |
#23
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Mrcheerful wrote in news:NKy8y.481307$wD3.212918
@fx45.am4: the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. Thanks. The trouble is that the powered side of the fuse holder is dead, even when the lights are switched on. Hence my proposed fix (pls see my message of a moment ago).. JD |
#24
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
newshound wrote:
On 03/12/2015 14:28, JD wrote: Car electrics... gha! The offside low beam headlight on my Noosan Tino 1.8, 2001 has stopped working I checked the single-filament bulb. It's fine I checcked for voltage to the connectors. There is no voltage at the connectors when the headlights are switched on. I found two 15A fuses. one labeled headlight/L and headlight/R. They appear fine and I swapped them over and there was no difference. The Haynes manual lighting circuit diagram shows a headlight relay, but doesn't tell me where it is located. I found a ralay named MAIN inder the bonnet in a nearside fusebox, but it's not the main beam that has quit. There are other relays in the same fusebox but none of thjem are labeleled 'healight'. Can anyone tell if there is an offside low beam relay and where it is located? There is a box offside in the engine compartment with a few relays but it doesn't say what they are. And they do not pull out easily. They are so securely in place, I was afraid I'd break something if I forced them free. This any help for relay location? http://tinyurl.com/nccz6p5 Chris -- Remove prejudice to reply. |
#25
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 05/12/2015 10:51, JD wrote:
Mrcheerful wrote in news:NKy8y.481307$wD3.212918 @fx45.am4: the simplest option is to make up a fused flylead that goes from the powered side of the fuse holder direct to the deadlight, hunt down the actual fault when the weather is better. Thanks. The trouble is that the powered side of the fuse holder is dead, even when the lights are switched on. Hence my proposed fix (pls see my message of a moment ago).. JD that would put double the load on the existing working fuse and wiring, the relay is designed to power both, so that will be ok. I would try it using the existing rating of fuse, if that survives then it will be ok for a while at least. |
#26
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD wrote: "Dave Plowman (News)" wrote in : In article , JD wrote: Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. That would be correct if the fuse was good. Does this indicate a broken wire somewhere? Is there volts between the fuse and ground? No, there is zero volts between the ssde of the fuse socket that is supposed to be live, and ground. Right - so no volts getting to the fuse. Which means the fault is in the feed to it. -- *Why isn't 11 pronounced onety one? * Dave Plowman London SW To e-mail, change noise into sound. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
Mrcheerful wrote in news:GCz8y.481474$wD3.472160
@fx45.am4: that would put double the load on the existing working fuse and wiring, the relay is designed to power both, so that will be ok. I would try it using the existing rating of fuse, if that survives then it will be ok for a while at least. Both fuses themnselves are faultless and intact. The problem is no power to the fuse (in the case of the light that doesn't come on). As for a relay, I cannot find one that has ane effect on the headlight that does work. Is it certain that there IS one for the low beam, do you think? JD |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
The Natural Philosopher wrote in news:n3ufbf$hn0$1
@news.albasani.net: Thanks; I was thinking similar, but my idea is to solder a short lead from the live side of the nearside headlight fuse holder to the supposedly live (but not) side of the offside headlight fuse holder. That way, I'd have a fuse between the battery positive and the headlight. That should be a simple, effective fix, yes? JD .....or would that overload a relay or the healight switch? Probably. Its almost certainly either a duff wire joint or the relay for that bulb A relay would be easy to check, if I could find one. I can't find a relay that has any effect on the working lowbeam headlight. I presume that the two realys (one for each lowbeam bulb) would be at the same location. Would both headlights go through a single relay, or is it more likely that there is one for each lowbeam bulb? JD |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
JD wrote:
{...] Both fuses themnselves are faultless and intact. The problem is no power to the fuse (in the case of the light that doesn't come on). As for a relay, I cannot find one that has ane effect on the headlight that does work. Is it certain that there IS one for the low beam, do you think? JD Did you look at the link I posted earlier? It clearly lists two headlamp relays, with a diagram showing their location. There will be one relay for dip, and one for main. It's possible that there are separate contacts on each relay for LH and RH side, in which case the fault might be the dip relay. It's more likely that there is a single contact feeding one wire to the fuse box, which then splits within the base of the box. In that case the fault is likely to be a break under the fuse box. Chris -- Remove prejudice to reply. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD wrote: A relay would be easy to check, if I could find one. I can't find a relay that has any effect on the working lowbeam headlight. I presume that the two realys (one for each lowbeam bulb) would be at the same location. Would both headlights go through a single relay, or is it more likely that there is one for each lowbeam bulb? I can't think of a reason to use two relays, since standard auto ones are more than capable of handling the current for two headlamps. Have you looked for a schematic online? -- *Gaffer tape - The Force, light and dark sides - holds the universe together* Dave Plowman London SW To e-mail, change noise into sound. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Dave Plowman (News)" wrote in
: In article , JD wrote: "Dave Plowman (News)" wrote in : In article , JD wrote: Thanks for the replies everyone... I have found the correct fuse, but it's intact. What I have now discovered is that there is no voltage between one side of the fuse socket and the other. That would be correct if the fuse was good. Does this indicate a broken wire somewhere? Is there volts between the fuse and ground? No, there is zero volts between the ssde of the fuse socket that is supposed to be live, and ground. Right - so no volts getting to the fuse. Which means the fault is in the feed to it. I posted the Hayens schematic he http://tinyurl.com/hv3ssfb Can anyone decipher that and tell me what the relay should look like? BTW, I'm puzzled by that schematic, because it doesn't show any single- filament headlights. My low beam lights are separate, single-filament bulbs. TIA! JD |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Dave Plowman (News)" wrote in
: Have you looked for a schematic online? I've posted one he http://tinyurl.com/hv3ssfb JD |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Dave Plowman (News)" wrote in
: Also, I was surprised to find no 'headlight relay' for a Nissan Tino being offered on eBay. I'd be surprised if it used two relays for dip beam. No reason they'd be on separately. Of course if it has a CAN bus system, all bets are off. I can;t see any ref to a CAN system in the Haynes manual. Chris Whelan (in an adjecent reply that I couldn;t respond to within this group for some reason) sent an image of the other relay box. While the relays in my box in that location didn't correspond to the ones in the image, I took them all out and the working lowbeam headlight still switched on and off, so I guess it's none of those. I'm baffled! SURELY Nissan would put a headlight relay in a place that's easy to locate, wouldn't they?? There is nothing in the car's handbook about relays. And Haynes shows a circuit diagram, but not the actual location of the relays. ALL I can find is a MAIN relay (presumably meaning main beam) but that has no effect when I remove it. JD |
#34
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
In article ,
JD wrote: Right - so no volts getting to the fuse. Which means the fault is in the feed to it. I posted the Hayens schematic he http://tinyurl.com/hv3ssfb Can anyone decipher that and tell me what the relay should look like? BTW, I'm puzzled by that schematic, because it doesn't show any single- filament headlights. My low beam lights are separate, single-filament bulbs. Typical Haynes - trying to show every possible combination of all variants in the same diagram. How I hate them. ;-) Looks like there are only relays involved if you have daytime running lights? -- *Do infants enjoy infancy as much as adults enjoy adultery? Dave Plowman London SW To e-mail, change noise into sound. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On Sat, 05 Dec 2015 15:45:14 +0000 (GMT)
"Dave Plowman (News)" wrote: Typical Haynes - trying to show every possible combination of all variants in the same diagram. How I hate them. ;-) And the Haynes manual for my model of Renault doesn't have my engine size, the only mention is that it isn't included. -- Davey. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 05/12/2015 17:36, Davey wrote:
On Sat, 05 Dec 2015 15:45:14 +0000 (GMT) "Dave Plowman (News)" wrote: Typical Haynes - trying to show every possible combination of all variants in the same diagram. How I hate them. ;-) And the Haynes manual for my model of Renault doesn't have my engine size, the only mention is that it isn't included. Haynes manuals are not even very useful as a door stop, let alone a reference. If I had the time and was paid to do it, I would visit them and point out some of the errors I have noticed from the distant past when I used to refer to them. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On 05/12/2015 09:59, JD wrote:
wrote in news:4a56e299-a5da-41b3-8d2a-df8077ea4ae3 @googlegroups.com: I checked the single-filament bulb. It's fine What check did you make? Visual? Electrical? Ohm meter and visual. The Ohms reading indicates it has resistance, so the filament must be intact, and it looks intact too. JD How much resistance? A working 20A fuse should read pretty close to zero with an ohm meter. |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
On Sat, 05 Dec 2015 19:00:02 +0000, dennis@home wrote:
On 05/12/2015 09:59, JD wrote: wrote in news:4a56e299-a5da-41b3-8d2a-df8077ea4ae3 @googlegroups.com: I checked the single-filament bulb. It's fine What check did you make? Visual? Electrical? Ohm meter and visual. The Ohms reading indicates it has resistance, so the filament must be intact, and it looks intact too. JD How much resistance? A working 20A fuse should read pretty close to zero with an ohm meter. He was referring to the lamp filament resistance, not the fuse link. I have a couple of 12v 55W quartz halogen capsule lamps which are probably identical to the ones JD's testing. The hot, working resistance calculates out to 2.62 ohms. However, since the hot resistance of a tungsten filament lamp is typically an order of magnitude greater than its cold temperature, a resistance check with a multimeter on the ohms scale will be trying to measure a mere quarter of an ohm resistance value which, with most multimeters, can be damned difficult to read or distinguish from the test lead's own resistance. Whilst many modern DMMs are calibrated to tenths of an ohm on their 200 ohms scale, thermocouple effects and test probe contact resistance make getting 'tenth of an ohm' readings rather problematical. With a lot of care and determination, I can usually get the short circuit test to stabilise at 0.6 ohms for the test lead resistance and with similar care when testing the lamp plus test lead resistance, see a 0.8 to 0.9 ohm reading on my 55W test lamp. In practice, of course, I'm happy to see a reading that approximates a short circuit when testing such low voltage lamp filaments when all I'm doing is simply to prove they haven't gone open circuit. In the early days of automotive electrics, it was standard practice to eliminate any fusing protection on headlight circuits to avoid the consequences of a total blackout due to a tired fuse blowing whilst driving along an unlit road. Any resulting electrical wiring fire was deemed less of a risk than a possibly fatal collision due to a sudden blackout - the theory being that at least one of the headlamps would remain lit long enough for the driver to bring the vehicle safely to a halt, pop the bonnet release (in later vehicles) and jump out, fire extinguisher in hand and possibly a suitable wrench to disconnect the battery (or, at the *very* least, *safely* abandon the vehicle along with any passengers before the vehicle became a raging inferno). Later on (sometime in the fifties or sixties?) the manufacturers started fitting safety fuses initially one per headlamp circuit (protecting both dip and drive filaments on each side) then 4 fuses to protect each filament or lamp. When relays started to used to control the vehicle's driving lamps, it was most likely a single changeover relay to begin with before this single point of failure was duplicated then quadruplicated to eliminate the risk of a total blackout by any one component failure. I'd imagine all modern vehicles (circa ten years old or less) will have not just a seperate fuse link per lamp filament but also a seperate relay for each lamp filament (not just duplicate contacts on a single coil relay). I don't envy JD's task of tracking down this particular fault. Vehicle electrics wiring diagrams are generally a total and utter shambles, seemingly designed more as a technically challenging puzzle designed to exercise the minds of individuals possessed of the intellect of the eponymous "Sherlock Holmes" character than as an aid to diagnosis by us mere mortals. -- Johnny B Good |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
"Johnny B Good" wrote in message
news On Sat, 05 Dec 2015 19:00:02 +0000, dennis@home wrote: In the early days of automotive electrics, it was standard practice to eliminate any fusing protection on headlight circuits to avoid the consequences of a total blackout due to a tired fuse blowing whilst driving along an unlit road. Any resulting electrical wiring fire was deemed less of a risk than a possibly fatal collision due to a sudden blackout. I experienced the Sudden Blackout once, and it was very frightening. I'd just arrived back from a holiday on the Isle of Wight and was driving through the New Forest on my way back from Lymington. I thought that my headlight pattern wasn't quite right and that the lights weren't as bright as they should have been. When I came up behind another car, I saw that I was right: there was only a reflection from one headlight - the other bulb had blown. I decided to carry on to Brockenhurst (the nearest settlement ahead) where I knew there'd be streetlights to supplement the little torch I had, to help me change the bulb, since it's a bugger trying to fumble in the restricted space between the headlamp housing and the engine. I'd only gone a mile further and the other bulb blew. I now just had the sidelights, which are no use at all the illuminate the road (eg white lights, kerbs) ahead. I drove most of the way on full beam, having to revert to blackout (apart from sidelights) whenever there was an oncoming car, and keeping well back from the car in front to avoid dazzling him. With hindsight I should have used the front fog lights but I forgot about those. Eventually I managed to find somewhere that I could safely pull off the road to change at least one of the bulbs (I just had one spare). Late at night, there were no shops open to buy a second bulb, and even Rownham Services on the motorway only had 24V and not 12V H7 bulbs - fine for HGVs but no use for cars. At least one bulb, fitted on the offside to indicate the boundary of my car to oncoming cars, was enough to get me home. Now I try to carry *two* spare headlight bulbs! |
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Headlight (low beam) not working (Nissan Tino 1.8, 2001)
dennis@home wrote in
web.com: Ohm meter and visual. The Ohms reading indicates it has resistance, so the filament must be intact, and it looks intact too. JD How much resistance? A working 20A fuse should read pretty close to zero with an ohm meter. Apologies; I meant to say it has "very low resistance" (as opposed to the very high resistance of a blown bulb). JD |
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