Test W

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

Test W1-W3:

Test W3-W5:

Test W5:

Normal Operation
The scan 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:
- faulted wiring, terminals, or connectors.
- a faulted data link connector (DLC).
- a faulted RCM.
- low battery voltage