Audi Q7: Transmission Control
Component Location Overview - Transmission Control
Data Link Connector
Component location: the data link connector for the Vehicle
Diagnostic Tester is located in the footwell on the driver side.
AWD Control Module -J492- in the A4
Component location: the AWD Control Module -J492--1-
is in the luggage compartment in the center in front of the
spare wheel well.
All Wheel Drive Control Module -J492-, Removing and Installing
- AWD Control Module -J492- component location. Refer to
→ Chapter "Component Location Overview - Transmission Control".
- Removing and installing is on the A4 Sedan.
- The ignition is off.
- Remove the luggage compartment floor covering.
- Remove the AWD Control Module -J492--1-
from the bracket.
- Disconnect the connector -A-
from the AWD Control Module -J492-.
- Install the AWD Control Module -J492- in reverse order of
removal.
- If the AWD Control Module -J492- was replaced then
additional work is necessary. Refer to
→ Chapter "AWD Control Module -J492-, Additional Work after
Replacing".
AWD Control Module -J492-, Additional Work after Replacing
- Only perform the additional work only if the AWD Control
Module -J492- was replaced.
- Connect the Vehicle Diagnostic Tester and turn on the
ignition.
- Select the function 22 - AWD Electronics
in the vehicle diagnostic tester under
Guided Functions in the directory 22-
Replacing Control Module.
- Follow all the instructions given by the Vehicle Diagnostic
Tester exactly.
With the vehicle diagnostic tester the installed rear final
drive is "adapted" on the AWD Control Module -J492-.
- A system check will take place when the
22 - Control Module, Replacing function is complete. If
malfunctions appear, then use "Guided Fault Finding" to correct
them.
READ NEXT:
Special tools and workshop equipment
required
Seal Installer - Flange Shaft -T10049-
Puller - Unit Injector -T10055-
Counterhold - Kit - Multiple Use -T10172-
Counterhold - Kit - Adapters
SEE MORE:
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 consists of the throttle valve, the electric
throttle-valve drive element, and the throttle-valve position
General Description
The Engine Control Module -J623- communicates with other
CAN-Bus capable control modules.
The control modules are connected by two data bus wires
which are twisted together (CAN_High and CAN_Low), and exchange
information (messages). Missing information on the CAN-bus is
reco