Keyless Entry System Inoperative. Chevrolet PJJ 2000

For 1990-2009 cars

Step | Action | Value | Yes | No
--- | --- | --- | --- | ---
DEFINITION: Use this diagnostic table when all functions of the Keyless Entry system are inoperative.
1 | Did you perform the Keyless Entry 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 lock switches inside the vehicle. Do the locks operate properly? | -- | Go to Step 4 | Go to Diagnostic System Check - Door Systems in Doors
4 | Use a scan tool to operate the trunk release. Does the trunk release operate properly? | -- | Go to Step 5 | Go to Diagnostic System Check - Body Rear End in Body Rear End

5

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 43421 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 43421 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 Keyless Entry Tester.
2. Place the transmitter on the J43421 test pad.
3. Press each button of the transmitter one at a time.

Does a tone sound and the green light illuminate on the J43421 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 11 | --
10 | Operate the transmitter within range of the vehicle. Do all of the Keyless Entry functions operate normally? | -- | Go to Step 21 | Go to Step 11

11

Important: All transmitters which are to be recognized by the Remote Control Door Lock Receiver (Omron Module) 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 .

Do all of the Keyless Entry functions operate normally?

--

Go to Step 21

Go to Step 12

12 | Using a scan tool, observe the status of the RFA Lock Request Input parameter of the body control module (BCM) while operating the lock button of the transmitter. Does the value change from OFF to ON? | -- | Go to Step 16 | Go to Step 13

13

1. Turn OFF the Ignition.
2. Disconnect the Remote Control Door Lock Receiver (Omron Module).
3. Probe the battery positive voltage circuit of the Remote Control Door Lock Receiver (Omron Module) with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

--

Go to Step 14

Go to Step 19

14 | Connect a test lamp between the ground circuit of the Remote Control Door Lock Receiver (Omron Module) and the battery positive voltage circuit of the Remote Control Door Lock Receiver (Omron Module). Does the test lamp illuminate? | -- | Go to Step 15 | Go to Step 20
15 | Inspect for poor connections at the harness connector of the Remote Control Door Lock Receiver (Omron Module). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 17
16 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 18

17

Important: All transmitters which are to be recognized by the Remote Control Door Lock Receiver (Omron Module) 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. Refer to Transmitter Programming .

Replace the Remote Control Door Lock Receiver (Omron Module). Refer to Remote Control Door Lock Receiver Replacement .

Did you complete the replacement?

--

Go to Step 21

--

18

Important: Replacement of the BCM will require a setup procedure to be performed. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

--

Go to Step 21

--

19 | Repair the open, high resistance , or short to ground in the battery feed circuit of the Remote Control Door Lock Receiver (Omron Module). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 21 | --
20 | Repair the open or high resistance in the ground circuit of the Remote Control Door Lock Receiver (Omron Module). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 21 | --
21 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 3