GM Service Manual Online
For 1990-2009 cars only

Radio Control Switches Will Not Illuminate

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights Dimming System Check?

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Go to Step 2

Go to Interior Lights Dimming System Check in Lighting Systems

2

Inspect the STR WHL CONT Fuse.

Is the fuse open?

--

Go to Step 3

Go to Step 4

3

Repair a short to ground in circuit 1458.

Did you complete the repair and test the system?

--

Go to Interior Lights Dimming System Check in Lighting Systems

--

4

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

Is the test light on?

--

Go to Step 6

Go to Step 5

5

Repair a poor connection or an open in circuit 1458 between the fuse block terminal H2 and C205 terminal B.

Did you complete the repair and test the system?

--

Go to Interior Lights Dimming System Check in Lighting Systems

--

6

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

Is the test light on?

--

Go to Step 8

Go to Step 7

7

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

Did you complete the repair and test the system?

--

Go to Interior Lights Dimming System Check in Lighting Systems

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8

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

Is the test light on?

--

Go to Step 10

Go to Step 9

9

Replace the inflatable restraint steering wheel module coil. Refer to Sir Coil Assembly in Tilt Strg Col Unit Repair.

Did you complete the repair and test the system?

--

Go to Interior Lights Dimming System Check in Lighting Systems

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10

Replace the bulbs in the radio control switches.

Did you complete the repair and test the system?

--

Go to Interior Lights Dimming System Check in Lighting Systems

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