The Body Control Module (BCM) monitors the number of keyless entry transmitters programmed. Until at least one transmitter is programmed, the BCM determines a malfunction condition exists.

The BCM has been set up without transmitters being programmed

No keyless entry transmitter programmed to the BCM.

The keyless entry system is inoperative.

A current DTC is cleared when at least one transmitter has been programmed to the BCM.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 43241 Keyless Entry Tester

Attempt to program the keyless entry transmitter, refer to Transmitter Programming The transmitter should program.

1. Verify that the transmitter is the correct transmitter for the vehicle.

⇒	If not correct, replace the transmitter.

2. Place the transmitter on the test pad of the J 43241 and press each button of the transmitter one at a time. The tester should sound a tone and illuminate a green light when each button is pressed.

⇒	If one or more buttons does not sound the tone and illuminate the green light, replace the transmitter battery and retest with the J 43241 . If the condition continues after battery replacement, replace the transmitter.

3. Attempt to program the transmitter, refer to Transmitter Programming. The transmitter should program.

⇒	If the transmitter does not program, replace the K9 BCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for BCM replacement, setup, and programming