MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: davidjonknight on November 15, 2022, 05:56:18 pm

Title: traction control light
Post by: davidjonknight on November 15, 2022, 05:56:18 pm

So once again the car has failed its MOT. All to do with the Traction control light not going out on the dashboard. there were two lights on originally. the steering wheel light and the car on the wiggly road. Doing the steering wheel to the left and then to the right made the steering wheel light go out but not the car icon. ODB11 throws up a Steering angle sensor error.'mechanical malfunction. fault code 00778

Title: Re: traction control light
Post by: GVK on November 15, 2022, 07:38:26 pm

http://wiki.ross-tech.com/wiki/index.php/00778

00778 - Steering Angle Sensor (G85): Mechanical Failure
Possible Causes

    Steering Angle Sensor (G85) Basic Setting lost
    Steering Angle Sensor (G85) Installation Position incorrect
    Suspension Geometry incorrect

Possible Solutions

    Perform Steering Angle Sensor (G85) Basic Setting
        See Vehicle specific Diagnostic Procedures for Details
    Check Steering Angle Sensor (G85) Installation Position
    Check Suspension Geometry

Title: Re: traction control light
Post by: GVK on November 15, 2022, 07:59:07 pm

http://wiki.ross-tech.com/wiki/index.php/VW_Golf_(1K)_Steering_Assist#Sensor_for_Steering_Angle_.28G85.29

This explains in full detail about the basic settings you maybe able to do it on OBD11, but the ross tech page is for VCDS ideally

Title: Re: traction control light
Post by: Corish on November 20, 2022, 09:41:56 pm

You want to be making sure you have 4 equal wheel speeds, it won't initialize the angle sensor until you do a short drive in a straight line and it is important the wheel speeds match. 1kph difference in the values won't be an issue, but if you've a bad exciter ring on the bearing it will fluctuate too much.

Check measuring blocks 1 in ABS.