GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the steering wheel controls illumination fuse.

Is the fuse open?

--

Go to Step 2

Go to Step 3

2

Repair a short to ground in circuit 1458.

Is the repair complete?

--

Go to Interior Lights Dimming System Check

--

3

Using a test light, backprobe the connector C205 between terminal B to ground.

Does the test light illuminate?

--

Go to Step 5

Go to Step 4

4

Repair the poor connection or an open in circuit 1458 or circuit 8 between S203 and C205 terminal B.

Is the repair complete?

--

Go to Interior Lights Dimming System Check

--

5

Using test light, backprobe the connector C205 between terminal B and terminal D.

Does the test light illuminate?

--

Go to Step 7

Go to Step 6

6

Repair the a poor connection or an open in circuit 1450 between C205 terminal D and G200.

Is the repair complete?

--

Go to Interior Lights Dimming System Check

--

7

  1. Disconnect the steering wheel radio control switches.
  2. Using test light, backprobe terminal B of the inflatable restraint steering wheel module coil to terminal D.

Does the test light illuminate?

--

Go to Step 9

Go to Step 8

8

Replace the inflatable restraint steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Disassemble - Off Vehicle in Steering Wheel and Column - Tilt.

Is the repair complete?

--

Go to Interior Lights Dimming System Check

--

9

Replace the bulbs.

Is the repair complete?

--

Go to Interior Lights Dimming System Check

--