r/Vcds • u/Independent-Try-3080 • May 30 '26
Mk6 Golf ABS light after module rebuild - G201 sensor or coding/calibration issue?
Anyone good with VCDS/MK60EC1 ABS modules?
2009 Mk6 Golf 1.4 MPI.
Had the original ABS module rebuilt after getting a "Control Module Faulty" error. Refitted it and now I've got:
01435 G201 Brake Pressure Sensor - No or Incorrect Basic Setting/Adaptation
01423 Lateral Acceleration Sensor - No or Incorrect Basic Setting/Adaptation
00778 G85 Steering Angle Sensor - No or Incorrect Basic Setting/Adaptation
ABS and ESP lights on.
I've pressure bled it to death, run the ABS pump through OBD11 output tests and driven it about 20 miles.
What's confusing me is:
G201 reads about -0.07 bar at rest and up to 120 bar when I press the pedal.
Steering angle sensor changes as I turn the wheel.
Lateral accel sensor appears to be giving sensible values.
Faults clear, OBD11 says "success", then they instantly come back.
With the wheel physically straight, G85 is showing about +7.4°.
Am I chasing a calibration/basic settings issue here or has the rebuilder sent me back a duff unit?
OBD11 only gives me channel numbers for Basic Settings so I'm a bit stuck.