9K-10 Doors Do Not Automatically Lock W/Doors Closed

CIRCUIT DESCRIPTION

When the RCDLR senses voltage on CKT 639 (ignition switch in "RUN"), "NO" voltage on CKT 275 and the ground removed from CKT 156 (all doorjamb switches open, all doors closed), the RCDLR applies voltage to CKT 195. The door lock relay is energized to activate the door lock actuators and lock all doors.

CHART TEST DESCRIPTION Number(s) below refer to circled number(s) on the diagnostic chart.

1. Isolate a power door lock system fault or keyless entry system fault.

2. Isolate a keyless entry system functional failure.

3. If the courtesy lamp function operates normally, CKT 156 to the RCDLR is not shorted to ground.

4. Checks for unwanted voltage at terminal "C" of the "C2" connector when transmission is in drive.

5. Checks for voltage input at terminal "C" of "C2" connector with transmission in "PARK."

DIAGNOSTIC AIDS Terminal "B" of "C2" connector must have voltage to it with key "ON," for automatic lock function to work.