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Keyless Entry System Inoperative

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Keyless Entry System Inoperative

Step Action Yes No
1 Did you perform the Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Remote Keyless Entry 
2 Press each button of the transmitter one at a time.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Lock and unlock the door locks using the controls inside the vehicle.
Do the locks operate properly?
Go to Step 4  Go to Diagnostic System Check - Door Systems in Doors
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. See Special Tools .
  2. Place the transmitter on the J 43241  test pad.
  3. Press each button of the transmitter one at a time.
Does a tone sound and the green light illuminate on the J 43241  after each button is pressed?
Go to Step 8  Go to Step 5 
5 Do any of the buttons on the transmitter sound the tone and illuminate the green light when pressed? Go to Step 9  Go to Step 6 
6 Replace the transmitter battery. Refer to Transmitter Battery Replacement .
Did you complete the replacement?
Go to Step 7  -
7
  1. Turn on the J 43241  Keyless Entry Tester. See Special Tools .
  2. Place the transmitter on the J 43241  test pad.
  3. Press each button of the transmitter one at a time.
Does a tone sound and the green light illuminate on the J 43241  after each button is pressed?
Go to Step 8  Go to Step 9 
8 Perform the transmitter synchronization procedure. Refer to Transmitter Resynchronization .
 
Did the locks cycle to lock then unlock?
Go to Step 12  Go to Step 10 
9 Replace the transmitter.
Did you complete the replacement?
Go to Step 10  -
10 Perform the transmitter programming procedure. Refer to Transmitter Programming .
Did the locks cycle to lock then unlock?
Go to Step 12  Go to Step 11 
11
IMPORTANT: When replacing the Passenger Door Module (PDM), perform the Program all Transmitters procedure. Refer to Transmitter Programming .
Replace the PDM. Refer to Switch Replacement - Door Lock and Side Window - Passenger in Doors.Did you complete the replacement?
Go to Step 12  -
12 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3