Lock Relay

CIRCUIT OPERATION
Circuit M1 from the Ignition Off Draw (IOD) fuse in cavity 9 of the fuse block powers circuit P38. When either power door lock switch is put in the LOCK position, the switch connects circuit P38 to circuit P35. If the operator uses Remote Keyless Entry (RKE), the RKE module powers circuit P35. In either case, circuit P35 supplies power to the coil side of the lock relay, causing the relay contacts to connect circuits P37 and P2. Circuit Z1 provides ground for the coil side of the lock relay.

When the lock relay contacts connect circuit P37 to circuit P2, circuit P2 supplies battery voltage to the power door lock motors to LOCK the doors.

When the power doors LOCK, ground for the motors is on circuit P34 through the door unlock relay to ground on circuit Z1.