GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Has the Remote Keyless Entry System Check been performed?

--

Go to Step 2

Go to Remote Keyless Entry System Check

2

  1. Disconnect the remote control door lock receiver.
  2. Connect an unpowered test lamp between the remote control door lock receiver connector cavity E for the CKT 540 (ORN) wire and ground.

Did the test lamp light?

--

Go to Step 4

Go to Step 3

3

Locate and repair the open in the CKT 540 (ORN) wire between the S228 remote control door lock receiver connector cavity E.

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

4

Connect an unpowered test lamp between the remote control door lock receiver connector cavity F for the CKT 540 (ORN wire and ground.

Did the test lamp light?

--

Go to Step 6

Go to Step 5

5

Locate and repair the open in the CKT 540 (ORN) wire between the S228 remote control door lock receiver connector cavity F

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

6

  1. Disconnect the connector at the remote control door lock receiver.
  2. Connect a digital multimeter (DMM) between the remote control door lock receiver connector cavity N for the CKT 150 (BLK) wire and ground.

Is continunity present?

--

Go to Step 8

Go to Step 7

7

Locate and repair the open in the CKT 150 (BLK) wire between the remote control door lock receiver and S206.

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

8

  1. Re-program a known good transmitter. Refer to Transmitter Synchronization
  2. Attempt to operate the keyless entry system.

Does the known good transmitter operate the keyless entry system?

--

Go to Step 9

Go to Step 10

9

Replace the old transmitter.

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

10

  1. Replace the remote control door lock receiver.
  2. Program or reprogram the transmitters. Refer to Transmitter Synchronization

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--