Circuit Operation

CIRCUIT OPERATION
Power Door Locks
The Power Distribution Center (PDC) supplies voltage to the fuse block from the 40 Amp HEAD-LAMPS fuse on circuit A3. Fuse 3, a 20 Amp located in the fuse block, supplies battery voltage on the F35 circuit to both door lock switches.

The ground path for the system is through the left door lock switch on the Z8 circuit. The grounding point is located at the instrument panel left center support brace.

Power Door Locks With Remote Keyless Entry
Power for the Remote Keyless Entry (RKE) module is supplied from three sources. Power is supplied to the RKE module on circuit G5.
This circuit is protected by a 5 Amp fuse located in cavity 11 of the fuse block. Power for the fuse is supplied from the ignition switch on circuit A21. This circuit is HOT in the START and RUN position.

Power for the A21 circuit is supplied by circuit A1. This circuit is HOT at all times and is protected by a 30 Amp fuse located in the PDC.

Circuit F35 supplies battery voltage to the RKE module. This circuit is HOT at all times and is protected by a 20 Amp fuse located in cavity 3 of the fuse block. Power for the fuse is supplied on circuit A3.
The A3 circuit is protected by a 40 Amp fuse located in the PDC.

The F35 circuit is used to supply power for the contact side of several relays internal to the RKE module.

Power is also supplied by circuit M1. This is the Ignition-Off Draw (IOD) circuit and is protected by a 10 Amp fuse located in cavity 13 of the Power Distribution Center (PDC).

Left Door Unlock (Using RKE Transmitter)
When the operator selects left, front UNLOCK the RKE module energizes the left front unlock relay connecting circuits F35 and P34. Circuit P34 connects from the module to the door lock motor.

Ground for the motor is supplied on circuit P33 through a bus bar in the right switch to circuit P35. The P85 circuit connects from the switch to the LOCK-ALL relay in the RKE module. Ground is passed through the normally CLOSED contacts in the relay to the left door switch.
Ground is passed through a bus bar in the switch to circuit Z8. This circuit terminates at the instrument panel left center support.

Unlock-All (Using RKE Transmitter)
When the operator selects UNLOCK ALL the RKE module energizes the unlock all relay connecting circuits F35 and P36. Circuit P36 connects from the module to the passengers and drivers door switch, unlock side.

Power is passed through the bus bar in the passengers switch to circuit P34. This circuit connects to the UNLOCK side of the motors.

Ground for the motors is supplied on circuit P3:3 through a bus bar in the right switch to circuit P35. The P35 circuit connects from the switch to the LOCK-ALL relay in the RKE module. Ground is passed through the normally CLOSED contacts in the relay to the left door switch.

Ground is passed through a bus bar in the switch to circuit Z8. This circuit terminates at the instrument panel left center support.

Lock-all (Using RKE Transmitter)
When the operator selects LOCK ALL the RKE module energizes the lock all relay connecting circuits F35 and P35. Circuit P35 connects from the module to the passengers and drivers door switch, lock side.

Power is passed through the bus bar in the passengers switch to circuit P33. This circuit connects to the LOCK side of the motors.

Ground for the motors is supplied on circuit P34 through a bus bar in the right switch to circuit P36. The P36 circuit connects from the switch to the UNLOCK-ALL relay in the RKE module. Ground is passed through the normally CLOSED contacts in the relay to the left door switch.

Ground is passed through a bus bar in the switch to circuit Z8. This circuit terminates at the instrument panel left center support.

Lock/ Unlock (using Door Switches)
Operation of the lock and unlock functions is the same as systems without RKE. The only change between the systems is all of the lock and unlock circuits pass through the RKE module. Refer to the standard door lock circuit descriptions.

Panic Function
When the operator activates the panic function of the system the RKE module grounds the appropriate relays connecting circuits F35 and L4 to feed the headlamps, and F35 to L7 to feed the parking lamps.