Intermittent abs light

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My Name: c3po03

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Posts: 27
Joined: Fri Aug 22, 2014 8:44 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 40000
Trim Level: Touch
Gearbox: Manual 5 speed
DPF: No
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I have a strange situation regarding just abs light 2004 1.4 HDI. Wires to wheels look good. The fault clears after the 10 mph drive away. When light appears I have been spraying a little contact cleaner to the multi plug behind battery with the red side pull out. Did pull off to inspect contacts all look good. After spraying fault clears. At the same time period after, not road or pot holes or corners influencing light to come back on. I think I have a faulty resistance situation not related to sensors as all four give clear code when driving off. Please can you advise my next step. Is it to clean the plug connectors. Are the rears under back seat. I do not know where the ones at the front will be. Thank you
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My Name: Arfur Dent

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Posts: 3546
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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c3po03 wrote: ↑Wed Sep 05, 2018 11:49 am I have a strange situation regarding just abs light 2004 1.4 HDI. Wires to wheels look good. The fault clears after the 10 mph drive away. When light appears I have been spraying a little contact cleaner to the multi plug behind battery with the red side pull out. Did pull off to inspect contacts all look good. After spraying fault clears. At the same time period after, not road or pot holes or corners influencing light to come back on. I think I have a faulty resistance situation not related to sensors as all four give clear code when driving off. Please can you advise my next step. Is it to clean the plug connectors. Are the rears under back seat. I do not know where the ones at the front will be. Thank you
You should read the codes in the ABS computer to see what is putting the light on. That is what the light is telling you to do.

Reading the ABS system on the C3 is done by lexia tool (here). This can also give you live data from the wheel sensors to spot anomalies.

If you want to find out about the lexia system and its requirements, have a look here.
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My Name: c3po03

Top Contributor
Posts: 27
Joined: Fri Aug 22, 2014 8:44 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 40000
Trim Level: Touch
Gearbox: Manual 5 speed
DPF: No
Been thanked: 3 times

Post

Thanks Arfur lexia in post will read codes. It seems strange that the system clears itself, three good codes back, then throws out error code. It could be dirt on sensor. Was running good for a few months. Will run from lexia codes to point specific if sensor. I will also make note and clear all error codes. I read somewhere that it could improve car running when all errors are cleared out.
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