Door Lock Function Inoperative with Transmitter

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 GMC Savana Special, 2006 GMC Savana Camper Special, 2006 GMC Savana, 2006 Chevrolet RV Cutaway, and 2006 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Keyless Entry Schematics Connector End View Reference: Keyless Entry Connector End Views DEFINITION: Use this diagnostic chart when the door lock function is inoperative when using the keyless entry transmitter. All other keyless entry functions operate normally.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Press the door lock button on the transmitter. Do the door locks operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Operate the door locks from the controls inside the vehicle. Do the door locks operate normally?	Go to Step 4	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
4	IMPORTANT: Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter may pass this test, but will not activate the vehicle remote system. Turn on the J 43241 Keyless Entry Tester. See Special Tools . Place the transmitter on the J 43241 test pad. See Special Tools . Press door lock button of the transmitter. Does a tone sound and the green light illuminate on the J 43241 after the button is pressed? See Special Tools .	Go to Step 5	Go to Step 7
5	Test the body control module (BCM) portion of the lock relay control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Replace the transmitter. Refer to Transmitter Programming . Did you complete the replacement?	Go to Step 9	-
8	Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9	-
9	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3