Collision Avoidance - Topview/Cornerview Camera Don't Work
90 Topview/Cornerview camera does not work, PR No. KA4 or KA6 - A6, A7, A890 12 33
2030904/1
September 21, 2012.
Affected Vehicles
Condition
Customer complaint:
The Topview camera system is inoperative. No camera images are displayed. The acoustic parking system functions normally.
Workshop findings:
The following DTC may be stored in address word 6C (J928 - Peripheral camera system):
^ DTC B125C11 (video cable - short circuit to ground)
Only vehicles with the Topview or Cornerview system (PR No KA4, KA6) are affected.
Technical Background
Hardware issue within J928.
Production Solution
Optimized hardware in J928.
Service
1. Test the current draw of the J928 using TSB 2029010, 27 Low Battery Charge: Excess Current Draw Location. Proceed from step 4 in TSB 2029010.
2. If a draw is detected in step 4 of TSB 2029010, measure the voltage drop across the fuse for J928 as instructed.
The fuse for J928 is located:
^ A6/A7: Right trunk side panel, fuse carrier "C" (brown), position 10 (Figure 1).
^ A8: Trunk, fuse carrier "F" (brown), position 12 (Figure 2).
3. If the calculated draw value is over 50mA, replace J928.
Tip: Perform the replacement using the GFF replacement test plan. After replacement, a complete calibration of the system is required to restore performance.
Warranty
Required Parts and Tools
Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
^ TSB 2029010, 27 Low Battery Charge: Excess Current Draw Location
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.