Rear Differential

Electrical/electronic components and installed locations





1 - Audi TT - Data Link Connector (DLC)
^ Location: Left front footwell, near hood opener

2 - Audi A3 - Data Link Connector (DLC)
^ Not applicable

3 - All-Wheel Drive Control Module J492
^ Installed location
^ Comprises of a unit together with Oil Pressure Actuator V184 and Hydraulic Temperature Sensor G271
^ Control module overview
^ Removing and installing

4 - Engine control module (ECM)
^ Installed location
^ The following signals are transmitted to All-Wheel Drive Control Module J492 via Data BUS:
^ Engine speed
^ Accelerator pedal position
^ Engine torque

5 - ABS Control Module J104
^ Location: To hydraulic unit at left of engine compartment
^ The following signals are transmitted to All-Wheel Drive Control Module J492 via Data BUS:
^ Wheel speeds
^ Longitudinal acceleration
^ Brake operation

6 - Haldex Clutch Pump V181
^ Installed location
^ Can be tested in "Guided Fault Finding" with Vehicle Diagnosis, Testing and Information System VAS 5051 B.

7 - Brake Light Switch F
^ Location: On brake pedal
^ Can be tested in "Guided Fault Finding" with Vehicle Diagnosis, Testing and Information System VAS 5051 B.

8 - Parking Brake Warning Light Switch F9
^ Installed location
^ Can be tested in "Guided Fault Finding" with Vehicle Diagnosis, Testing and Information System VAS 5051 B.





All-Wheel Drive Control Module J492
Location: Control module - arrow - is located in rear final drive in right front area.





Haldex Clutch Pump V181
Location: Haldex clutch pump - arrow - is located on rear final drive in right front area below control module.