Pinpoint Tests

PINPOINT TEST A: THE SMART JUNCTION BOX (SJB) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

A1-A2:

A3:

Normal Operation
The SJB receives voltage from the battery junction box (BJB) on circuit 1523 (DG) and is grounded through circuit 570 (BK/WH). The SJB communicates interactively with the diagnostic tool and other modules on the international standards organization (ISO) 9141 communication network, circuit 70 (LB/WH).

Possible Causes
- fuse(s)
- circuit 570 (BK/WH) open
- circuit 1523 (DG) open or short to ground
- SJB