GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you perform the Diagnostic System Check - Keyless Entry?

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 Symptoms - 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.
  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 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.

Did you complete the replacement?

Go to Step 7

System OK

7

  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 9

Go to Step 8

8

Replace the transmitter.

Did you complete the replacement?

Go to Step 10

System OK

9

Operate the transmitter with range of the vehicle.

Does all of the remote function actuator (RFA) functions operate normally?

Go to Step 12

Go to Step 10

10

Perform the programming procedure. Refer to Transmitter Programming .

Did the lock cycle to lock then unlock?

Go to Step 12

Go to Step 11

11

Important: When replacing the remote control door lock receiver (RCDLR), perform the programming procedure.

Replace the RCDLR. Refer to Remote Control Door Lock Receiver Replacement .

Did you complete the replacement?

Go to Step 12

System OK

12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3