GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the PARK LPS fuse for an open.

Is the fuse open?

--

Go to Step 2

Go to Step 3

2

Repair a short to ground in circuit 1340.

Has the repair been made and the system rechecked?

--

Go to Exterior Lights System Check

--

3

  1. Turn the headlamp switch to the PARK position.
  2. Using a test light, backprobe connector C201between terminal R and ground.

Does the test light illuminate?

--

Go to Step 7

Go to Step 4

4

Using a test light, backprobe connector C201 between terminal Z and ground.

Does the test light illuminate?

--

Go to Step 5

Go to Step 6

5

Replace the headlamp switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt.

Has the repair been made?

--

Go to Exterior Lights System Check

--

6

Repair the poor connection or an open in circuit 1340.

Has the repair been made?

--

Go to Exterior Lights System Check

--

7

Repair the poor connection or an open in circuit 74 between connector C201 terminal R and S277.

Has the repair been made?

--

Go to Exterior Lights System Check

--