Test A: All Door Locks Are Inoperative
PINPOINT TEST A: ALL DOOR LOCKS ARE INOPERATIVENormal Operation
The battery junction box (BJB) fuse 8 (20A) provides voltage for the power lock/unlock system and to the luggage compartment lid latch (on vehicles without power luggage compartment lid release). The voltage is supplied to the driver door module (DDM) through circuit 1213 (WH/LB). Ground for the power lock/unlock system is provided to the DDM through circuit 57 (BK). The DDM contains internal relays that are energized depending upon the input received. When the DDM receives a lock request the DDM provides voltage to the door lock actuators on circuit 117 (PK/BK). Ground for the LH front door lock actuator is provided by circuit 163 (RD/OG) and ground for the remaining door lock actuators is provided by circuit 118 (PK/OG). When the DDM receives an unlock request, voltage and ground are reversed on the previously listed circuits.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Luggage compartment lid latch
- DDM