On Board Diagnostics, or OBD, is an automotive term
referring to a vehicle's self-diagnostic and reporting
capability. OBD systems give the vehicle owner or repair
technician access to the status o
The electronic throttle control (ETC) system consists of the
accelerator-pedal module, the engine control module (ECM), and
the electronic throttle body. The electronic throttle body
mainly consist
Ignition
A spark ignition (SI) engine requires a spark to initiate
combustion in the combustion chamber. Voltage is supplied to the
spark plug where the electricity will arc across a gap at a
volta
Component Location Overview - Electrical Components
1 - AWD Control Module -J492-
Component location. Refer to
→ Fig. " AWD Control Module -J492- in the A4".
Additional work after replacing the control module. Refer to
→ Chapter "AWD Control Module -J492-, Additional Wor
Special tools and workshop equipment
required
Torque Wrench 1332 40-200Nm -VAG1332-
Wheel Lock Set -T10101-
Wheel Lock Set -T10101A-
Wheel Lock Set -T40004-
Wheel Lock Set -T40073-
Wax Spray -D 322 000 A2-
Optimol TA Paste -G 052 109 A2-
Note
The wrench size of the included wheel b
On Board Diagnostic Systems
