GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Interior Lights Dimming System Check performed?

--

Go to Step 2

Go to Interior Lights Dimming System Check

2

Check the steering column fuse holder SWITCH Fuse for an open.

Is the SWITCH Fuse OK?

--

Go to Step 3

Go to Step 6

3

  1. Disconnect the splice pack connector C302.
  2. Disconnect the steering column fuse holder connector.
  3. Connect a DMM from the splice pack connector C302 YEL cavity to the steering column fuse holder connector YEL cavity.

Is the resistance less than the specified value?

5 ohms

Go to Step 4

Go to Step 8

4

  1. Disconnect the inflatable restraint steering wheel module coil connector.
  2. Connect a DMM from the inflatable restraint steering wheel module connector cavity D (BLK) to ground.

Is the resistance less than the specified value?

5 ohms

Go to Step 5

Go to Step 9

5

Replace the steering wheel controls. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column-Tilt.

Is the steering wheel controls replacement complete?

--

Go to Interior Lights Dimming System Check

--

6

Repair the short to ground in CKT 1491 (YEL). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 7

--

7

Replace the SWITCH Fuse in the Steering Column Fuse Holder. Refer to Wiring Repairs in Wiring Systems.

Is the fuse replacement complete?

--

Go to Interior Lights Dimming System Check

--

8

Repair the open in CKT 1491 (YEL) between the splice pack connector C302 and the steering column fuse holder. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Interior Lights Dimming System Check

--

9

Repair the open in CKT 350 (BLK) between the inflatable restraint steering wheel module coil and G200. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Interior Lights Dimming System Check

--