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Keyless Entry System Inoperative

WARNING: This page is about a different car, the 2005 Cadillac CTS. 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 - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
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 Starting Point - Doors 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. See Special Tools  .
  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?. See Special Tools  .		 Go to Step 9  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 8  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  . See Special Tools  .
  2. Place the transmitter on the J 43241  test pad. See Special Tools  .
  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?. See Special Tools  .		 Go to Step 11  Go to Step 8 
8 Replace the transmitter.
Did you complete the replacement?		 Go to Step 9  -
9
IMPORTANT: All transmitters which are to be recognized by the keyless entry system must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter.
Perform the programming procedure. Refer to Transmitter Programming  .Did the locks cycle to lock then unlock?		 Go to Step 11  Go to Step 10 
10
IMPORTANT: When replacing the antenna module, perform the transmitter programming procedure. Refer to Control Module References in Computer/Integrating Systems.
Replace the driver side antenna module. Refer to Control Module References in Computer/Integrating Systems.Did you complete the replacement?		 Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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