Tests AC

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

Test AC1:

Test AC2-AC4:

Test AC5-AC6:

Normal Operation
The scan tool communicates with the restraints control module (RCM) monitors 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.