B3000 V6-3.0L (2007)
Step PC1
Pinpoint Tests
PINPOINT TEST 1: NO COMMUNICATION WITH THE SMART JUNCTION BOX (SJB)
Normal Operation
The SJB receives voltage from the battery junction box (BJB) on circuit (DG) and is grounded through circuit (B/W). The SJB communicates
interactively with the WDS or equivalent tester and other modules on the international standards organization (ISO) 9141 communication network,
circuit (LB/W).
Possible Causes
-
fuse(s)
-
circuit (B/W) open
-
circuit (DG) open or short to ground
-
SJB
CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.