00778

00778 - Steering Angle Sensor (G85)

00778 - Steering Angle Sensor (G85)

Possible Causes

• Steering Angle Sensor (G85) Basic Setting lost

Possible Solutions

• Perform Steering Angle Sensor (G85) Basic Setting
  • See Vehicle specific Diagnostic Procedures for Details

Special Notes

• This Fault Code may also be stored even though the Steering Angle Sensor (G85) is properly calibrated (Basic Setting), though it may not be finally initialized yet. Check the Measuring Value Blocks (MVB) in the Steering Aid Control Module (J500 / #44) for details. The Initialization will usually take place during a test drive.

00778 - Steering Angle Sensor (G85): Defective

Possible Causes

• Steering Angle Sensor (G85) faulty

Possible Solutions

• Check Steering Angle Sensor (G85)

Special Notes

• With steering wheel level, wheels pointing straight ahead, make sure G85 is reporting 0 degrees +/- 5 degrees. If a reading of +360 or - 360 degrees is found. Remove steering wheel and turn clock spring 1 turn in direction needed to fix. See repair manual.

00778 - Steering Angle Sensor (G85): Implausible Signal

Possible Causes

• Steering Angle Sensor (G85) Basic Setting lost
• Steering Angle Sensor (G85) Installation Position incorrect
• No Communication between Steering Angle Sensor (G85) and Brake Electronics (J104)

Possible Solutions

• Perform Steering Angle Sensor (G85) Basic Setting
  • See Vehicle specific Diagnostic Procedures for Details
• Check Steering Angle Sensor (G85) Installation Position
• Check communication between Steering Angle Sensor (G85) and Brake Electronics (J104)

00778 - Steering Angle Sensor (G85): No or Incorrect Basic Setting / Adaptation

Possible Causes

• Steering Angle Sensor (G85) Basic Setting lost

Possible Solutions

• Perform Steering Angle Sensor (G85) Basic Setting
  • See Vehicle specific Diagnostic Procedures for Details

Special Notes

• When this DTC will not clear in Mk70 and MK60 ESP equipped (1K) Golf models see the WSS (Wheel Speed Sensor) notes Here.

00778 - Steering Angle Sensor (G85): Not Matched

Possible Causes

• Steering Angle Sensor (G85) Basic Setting lost

Possible Solutions

• Perform Steering Angle Sensor (G85) Basic Setting
  • See Vehicle specific Diagnostic Procedures for Details

Special Notes

• When found in VW Golf/Jetta/Bora (1K/5M) or similar: Steering Assist:
  • The Basic Setting differs depending on which ABS System is installed.
    • For Vehicles with Brake Electronics (MK60) (see Component Identification) use these Instructions.
    • For Vehicles with Brake Electronics (MK70) (see Component Identification) use these Instructions.

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

00778 - Steering Angle Sensor (G85): No Signal/Communication

Possible Causes

• Steering Angle Sensor (G85) faulty
• Steering Angle Sensor (G85) configured incorrectly due to replacement control modules or incorrect coding
• Buggy ABS controller software

Possible Solutions

• Check Steering Angle Sensor (G85)
• Check Steering Angle Sensor (G85) location and configuration on the vehicle in question
• Check ABS controller software per TPIs, TSBs and recall publications .

Special Notes

• When found in the VW Jetta, Beetle and Beetle Convertible with MK60EC1 ABS control modules numbers; 1K0 907 379 BM and 1K0 907 379 BS may have a flash update for model years 2014-2015. US Market RVU # 45D7 (TPMS/ESC Software (FED_EMS) includes the following DTCs: 00778 and 01325
• When found in a MLB based chassis vehicle with Address 16 both fault free and communicating make sure ALL fused powers to J527 are OK. The example here may be helpful: https://forums.ross-tech.com/showthread.php?22543-Audi-A4-B8-Steering-Angle-sensor-no-signal-(G85)