mistergrumpy
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| posted on 16/3/12 at 09:37 PM |
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Engine Management Light
Can anyone help, again!
I'm having electrical issues with my VW T4 2.5 TDi. I've asked on the T4 forum but they're not very technical and you only seem to
get replies to questions about shiny parts.
Basically I did a scan with VCDS Lite and it brought up a few faults that I'm working on but as a result I noticed that the engine management
light doesn't come on when the ignition is first turned which it should for a few seconds and will fail it's MOT I guess if it
doesn't.
I've stripped the clocks and the lights are surface mounted diodes. I've put a volt meter on one of the permanently lit ones and it
registers, so I did the same on the engine light and switched the ignition on and there's nothing. No voltage, no current. Can anyone advise
where to look next?
Is it operated by the ECU or something else?
Thanks
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steve m
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| posted on 16/3/12 at 10:53 PM |
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I didn t think the EML was an mot failure, just airbag and abs lights that were
(i could be wrong though!)
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mistergrumpy
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| posted on 17/3/12 at 07:07 AM |
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Ah right. It was my understanding that if a warning light exists then it must work. My mistake hopefully.
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snapper
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| posted on 17/3/12 at 07:20 AM |
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Airbag and ABS only as they are safety critical, although I would dispute ABS if the brakes work.
Brake resoviour light must work, usualy usualy tested with the handbrake.
Tester will not no the warning light sequence of all vehicles, some show all lights on start up some don't.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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mistergrumpy
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| posted on 17/3/12 at 07:33 AM |
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Hurray! Just to get rid of the airbag light then. I would like to get the engine light working though.
ETA Thanks by the way. I've been frequenting another forum a bit and it just makes you appreciate LCB all the more! 
[Edited on 17/3/12 by mistergrumpy]
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