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Home >> Chevrolet >> 2007 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> Door Lock Function Inoperative with Transmitter
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Door Lock Function Inoperative with Transmitter

Door Lock Function Inoperative with Transmitter

Step Action Yes No
Schematic Reference: Remote Function Schematics 
Connector End View Reference: Remote Function 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
2 Press the door lock button on the transmitter.
Do the door locks operate normally?
Go to Testing for Intermittent Conditions and Poor Connections 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
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.
  1. Turn on the J 43241  Keyless Entry Tester.
  2. Place the transmitter on the J 43241  test pad.
  3. 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?
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 .
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 .
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 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