FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Tests AJ

PINPOINT TEST AJ: NO COMMUNICATION WITH THE RESTRAINTS CONTROL MODULE (RCM)


Test AJ1-AJ3:






Test AJ4:






Test AJ5:






Normal Operation
The RCM communicates with the scan tool using ISO 9141 communication mode through the Data Link Connector (DLC).

Possible Causes
A no communication condition can be caused by:
^ damage to circuit 70 (LB/WH).
^ a damaged DLC.
^ a damaged scan tool.
^ an RCM internal concern.