GM Service Manual Online
For 1990-2009 cars only

Conditions for Running the DTC

The digital RF message received from the remote control door lock transmitter was valid; all security checks passed.

Conditions for Setting the DTC

The remote control door lock transmitter has been in the program mode out of range of the BCM. This malfunction could also be encountered if the remote control door lock transmitter itself is defective.

Action Taken When the DTC Sets

The correct remote control door lock transmitter functionality.

Conditions for Clearing the MIL/DTC

Fault is corrected and DTC memory clearing procedure is completed.

Diagnostic Aids

If a message is sent by the remote control door lock transmitter and no code is set, the remote control door lock transmitter may be defective. If the remote control door lock transmitter message is sent and code 41 is set, but the corresponding function does not take place, the BCM or related harness may be defective.

Step

Action

Value(s)

Yes

No

1

  1. Enter BCM diagnostic mode.
  2. Reprogram remote control door lock transmitter.

Is reprogramming complete?

--

System OK

Go to Step 2

2

  1. Replace remote control door lock transmitter.
  2. Reprogram remote control door lock transmitter and BCM.

Is reprogramming complete?

--

System OK

Go to Step 3

3

  1. Replace BCM.
  2. Reprogram remote control door lock transmitter and BCM.

Is reprogramming complete?

--

System OK