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 remote control door lock receiver connector cavity E for CKT 540 (ORN) and ground.

Did the test lamp light?

--

Go to Step 3

Go to Step 4

3

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

Did the test lamp light?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 540 (ORN) between S228 remote control door lock receiver connector cavity E.

Do the locks operate properly?

--

Go to Remote Keyless Entry System Check

Go to Step 3

5

  1. Disconnect the connector at the remote control door lock receiver.
  2. Connect an unpowered test lamp between the remote control door lock receiver connector cavity N for CKT 150 (BLK) and B+.

Did the test lamp light?

--

Go to Step 7

Go to Step 8

6

Repair the open in CKT 540 (ORN) between S228 and remote control door lock receiver connector cavity F.

Do the locks operate properly?

--

Go to Remote Keyless Entry System Check

Go to Step 5

7

  1. Reprogram a known good transmitter. Refer to Transmitter Programming .
  2. Attempt to operate the keyless entry system.

Does the good transmitter work?

--

Go to Step 9

Go to Step 10

8

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

Do the locks operate properly?

--

Go to Remote Keyless Entry System Check

Go to Step 7

9

Replace the old transmitter(s).

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

10

Replace the remote control door lock receiver. Refer to Transmitter Programming .

Is the repair complete?

--

Go to Remote Keyless Entry System Check

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