Test Z: No Communication With the Restraints Control Module (RCM)

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

Z1:

Z2-Z4:

Z5-Z6:

Normal Operation
The diagnostic tool communicates with the restraints control module (RCM) through the data link connector (DLC) C251 pin 7, circuit 70 (LB/WH).

Possible Causes
A no communication fault with the RCM can be caused by:
- open fuse.
- damaged wiring, terminals or connectors.
- a faulty data link connector (DLC).
- RCM is faulted.