GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Connect a scan tool.
  2. Turn the ignition to RUN.
  3. Check for stored dash integration module (DIM) DTCs.

No DIM DTCs are stored.

The DIM has stored DTCs. Refer to Diagnostic Trouble Code (DTC) List/Type

2

  1. Turn the ignition switch to ACCY or RUN.
  2. Momentarily hold each steering wheel control switch in the UP, then DOWN position.

The desired function of the radio, climate control or phone operates properly.

Steering Wheel Controls Inoperative

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.