Test P

P1 - P2:

P3 - P4:

P5:

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.