GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Turn the park lamps on.

Are all of the steering wheel controls illumination lamps inoperative?

--

Go to Step 3

Go to Step 2

2

Replace the steering wheel controls. Refer to Steering Wheel Control Switches Replacement .

Is the repair complete?

--

System OK

--

3

  1. Disconnect connector C217.
  2. Turn the IP dimmer switch to maximum brightness.
  3. Connect a test lamp from connector C217 terminal B to terminal D (male side).

Does the test lamp illuminate?

--

Go to Step 4

Go to Step 5

4

  1. Reconnect connector C217.
  2. Backprobe the steering wheel controls connector from terminal B to terminal C.

Does the test lamp light?

--

Go to Step 8

Go to Step 9

5

Connect a test lamp from C217 terminal B to ground.

Does the test lamp light?

--

Go to Step 6

Go to Step 7

6

Repair the open in circuit 650 between C217 and S216.

Is the repair complete?

--

System OK

--

7

Repair the open in circuit 1458 between the IP fuse block and connector C217.

Is the repair complete?

--

System OK

--

8

  1. Test for a poor connection at the steering wheel controls.
  2. If the connections are OK, replace the steering wheel controls.

Is the repair complete?

--

System OK

--

9

  1. Test for a poor connection at steering wheel controls connector terminal B and terminal D.
  2. If the connections are OK, replace the Inflatable restraint steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .

Is the repair complete?

--

System OK

--