Audi A4: Overview - Rearview Camera System
The rear view camera system (KA2) assists the driver during
back-up driving for diagonal and parallel parking for trailer
towing and watching cross traffic by providing the driver with
an image of the traffic situation behind the vehicle via the
Front Information Display Control Head -J685-.
The rear view camera system is switched on when engaging the
reverse gear. The system can be activated manually by pressing
the Parking Aid Button -E266- in the instrument panel
(optional).
The rear view camera system consists of the following
components:
- Rearview Camera -R189-
- The Rearview Camera System Control Module -J772- is
integrated in the Rearview Camera -R189-
- Information Electronics Control Module 1 -J794-
- Front Information Display Control Head -J685-
Other control modules may be installed as optional
equipment.
It is not permitted to install an auxiliary license plate
for vehicles with rear view camera system as it could impair the
function of the rear view camera system.
Fault finding is performed via "Guided Fault Finding" using
the Vehicle Diagnostic Tester.
Component Location Overview - Rearview Camera System

1 - Front Information Display Control Head -J685-
- Connector assignment. Refer to
→ Wiring diagrams, Troubleshooting & Component locations.
- Removing and installing. Refer to
→ Chapter "Infotainment System Display, Removing and Installing".
2 - Rearview Camera -R189-
- With Rearview Camera System Control Module -J772-
- Connector assignment. Refer to
→ Wiring diagrams, Troubleshooting & Component locations.
- Removing and installing. Refer to
→ Chapter "Rearview Camera -R189-, Removing and Installing".
3 - Information Electronics Control Module 1 -J794-
- Connector assignment. Refer to
→ Wiring diagrams, Troubleshooting & Component locations.
- Removing and installing. Refer to
→ Chapter "Information Electronics Control Module 1 -J794-, Removing and
Installing".
READ NEXT:
Rearview Camera -R189-, Removing and Installing, Sedan
The Rearview Camera -R189- is inside the rear lid handle
button. It permanently attached to the handle button.
If the Rearview Camera -R189- mus
Calibration Unit -VAS6350A-, Installing and Aligning
After performing repair work on the vehicle, it may be
necessary to re-calibrate the rearview camera system. In detail,
this is the case after:
SEE MORE:
Fender Front Cover, Removing and Installing, Small Version
Removing
- Loosen the front wheel housing liner in the front and push it to
the side. Refer to
→ Chapter "Front Wheel Housing Liner, Removing and Installing".
- Release the retainers -2- in the
direction of -arrows- and r
Fig. 2 Instrument cluster overview (Audi virtual cockpit)
Fig. 3 Instrument cluster overview (analog)
Depending on the vehicle equipment, the following items may appear in the
instrument cluster:
Left dial
Tachometer
Tab area
Central area
Status line (one or two lines)
Right dial
Co