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Pinpoint Tests

PINPOINT TEST A: NO COMMUNICATION WITH VEHICLE SECURITY MODULE


A1-A2:






A2 Continued:






Normal Operation
The vehicle security module voltage is supplied by the central junction box (CJB) through circuits 517 (BK/WH) and 640 (RD/YE). The vehicle security module is grounded through circuits 1205 (BK) and 57 (BK).

Possible Causes
- fuse
- circuit 57 (BK) open
- circuit 517 (BK/WH) open or short to ground
- circuit 640 (RD/YE) open or short to ground
- circuit 1205 (BK) open