GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the IC Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Do the interior lights work?

--

Go to Step 3

Go to Step 4

3

  1. Connect a scan tool to the data link connector (DLC).
  2. Close and open the left front door.

Is the left front door jamb switch OFF when the driver door is closed?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 51 (BLK/WHT). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

--

5

Repair the short in CKT 745 (GRY/BLK). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

--

6

Replace the left front door jamb switch. Refer to Left Front Door Jamb Switch Replacement in Doors.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

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