GM Service Manual Online
For 1990-2009 cars only

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

Operate the rear compartment release and the fuel door release from the controls inside the vehicle.

Do the rear compartment release and the fuel door release operate properly?

Go to Step 5

Go to Diagnostic Starting Point - Body Rear End in Body Rear End

5

Important: Ensure 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 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 10

Go to Step 6

6

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 7

7

Replace the transmitter battery. Refer to Transmitter Battery Replacement .

Did you complete the replacement?

Go to Step 8

--

8

  1. Turn on the J 43241 .
  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 10

Go to Step 9

9

Replace the transmitter.

Did you complete the replacement?

Go to Step 10

--

10

Important: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) 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 12

Go to Step 11

11

Important: When replacing the RCDLR, perform the transmitter programming procedure.

Replace the RCDLR. Refer to Control Module References in Computer/Integrating systems for replacement, setup, and programming.

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