vauxhall vectra c - abs and tc light on

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Tue 13 Mar 2012 16:33
vauxhall vectra c - abs and tc light on - frogmarch

hi my abs and tc lights are on permanately read codes and came up with right hand speed sensor so checked wiring and connections on both sides and tried to clear codes but came up again could it be both sensors gone or actual abs module thanks

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Tue 13 Mar 2012 17:04
vauxhall vectra c - abs and tc light on - dieselnut

When you say 'right hand sensor' , there are two right sensors, front & back.

The ABS ECU tests each sensor every time you switch on the ignition looking for the resistance of the sensor coil.

You need to find the conexion diagram for yor cars ABS connector & test the two wires that go to each sensor. Should see about 1000ohms between the two wires & infinity ( 1 on your LCD test meter ) between each wire & chassis earth. If you don't see this you will have to test again where each wheel sensor connects to the car loom.

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Wed 14 Mar 2012 19:12
vauxhall vectra c - abs and tc light on - frogmarch

it is front right hand sensor then opcom says left hand front

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Thu 15 Mar 2012 10:07
vauxhall vectra c - abs and tc light on - dieselnut

It might be that both front sensors are failing.

Everytime you turn the steering or hit a bump the sensor cables get twisted & bent. Eventually the wires start to break inside the sheath & become intermittent. As soon as the ABS detects a break it switches off & brings up a fault light. When you switch the ignition on the next time, the wires will possibly have continuity again for a while until the next bump/turn.

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