9K-3 Rear Glass Release Inoperative (Buick)

CIRCUIT DESCRIPTION

When the RCDLR senses no voltage on CKT 639 and CKT 275, the rear glass release function can be activated using the transmitter. When the RCDLR senses voltage on CKT 639 and CKT 275, (ignition switch in "RUN" and transmission in "PARK") the rear glass release function can also be activated using the transmitter. When the RCDLR senses voltage on CKT 639 (ignition switch in "RUN") and no voltage on CKT 275 (transmission not in "PARK") the rear glass release function cannot be activated by the transmitter.

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

1. Determine a keyless entry system fault or rear glass release system fault.

2. Test the transmission position switch. With the transmission in "PARK," the transmission position switch should be closed, applying voltage to CKT 275.

DIAGNOSTIC AIDS Program a known good transmitter and test the rear glass release function. If the rear glass release function operates normally, the original transmitter was defective. If the rear glass release function is still inoperative, replace the RCDLR. If a known good transmitter will not program, refer to 9K-8. 9K-8 Remote Control Door Lock Receiver/Trans Will Not Program