System Operation

Lock (Transmitter)
When a lock command is received from the transmitter, the remote control door lock module (also known as the RKE module) provides battery voltage through circuit 195R to the LOCK relay in the IPJB. The LOCK relay coil, grounded by circuit 550A, energizes and causes the relay contacts to close. When the relay contacts closes, battery voltage is provided through the LOCKS fuse, through the relay, and out of the IPJB to each of the door lock motors. The driver door lock motor is grounded by the remote control door lock module ground circuit 550RR. The other door lock motors are grounded through the UNLOCK relay by the IPJB ground circuit 550A.

Lock (Switches)
The lock operation of the driver's and passenger's door switches is the same as when operated by the transmitter, except battery voltage is provided by either switch to the LOCK relay instead of by the remote control door lock module).

Unlock (Transmitter) Driver's Door
When an unlock command is received from the transmitter, the remote control door lock module provides battery voltage through circuit 294K or 294E to the driver's door lock motor. Ground potential is provided at the IPJB, through the normally closed contact of the LOCK relay and through each of the remaining door lock motors.


Unlock (Transmitter) All Doors Except Driver's Door
When a second unlock command is received from the transmitter within five seconds of the first unlock command, the remote control door lock module provides battery voltage through circuit 194R to the UNLOCK relay in the IPJB. The UNLOCK relay coil, grounded by circuit 550A, energizes and causes the relay contacts to close. When the relay contacts close, battery voltage is provided through the LOCKS fuse, through the relay, and out of the IPJB to each of the door lock motors (in opposite direction of "lock"), except the driver's door lock motor. The door lock motors are grounded through the LOCK relay by the IPJB ground circuit 550A.

Unlock (Switches)
The unlock operation of the driver's and passenger's door switches, excluding the driver's door unlock, is the same as when operated by the transmitter, except battery voltage is provided by either switch to the UNLOCK relay instead of by the remote control door lock module. The driver's door unlock signal is detected by the remote control door lock module, through circuit 194R. The remote control door lock module provides battery voltage to the driver's door lock motor (in opposite direction of "lock").


Decklid/Liftgate
The circuit description for the decklid and liftgate is explained on the facing pages of CHART 1 and CHART 2 in this bulletin.

Dome Lamp
The circuit description of the dome lamp is explained in the "Dome Lamp System".

Horn
The circuit description of the horn is explained in the "Horn System".