GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the remote control door lock receiver connector.
  2. Connect a test lamp between terminal B and terminal P of the remote control door lock

Do the doors unlock?

--

Go to Step 2

Go to Step 3

2

Replace the remote control door lock receiver. Refer to Receiver Replacement .

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

3

Use J 36169-A in order to backprobe the left IP junction block between terminal B5 of connector C3 and the positive battery voltage.

Do the doors unlock?

--

Go to Step 4

Go to Step 5

4

Repair the open in CKT 194 between the remote control door lock receiver and the left IP junction block. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

5

Replace the left IP junction block. Refer to Relay/Fuse Center Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--