GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

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Go to Step 2

Go to Interior Lamps System Check

2

  1. Open the left front door.
  2. Backprobe the diode module using J 35616-200 from cavity F to B+.

Does the test lamp light?

--

Go to Step 3

Go to Step 5

3

Inspect for an open in the BLK/RED wire between S250 and the diode module.

Is the connection OK?

--

Go to Step 4

Go to Step 7

4

Replace the diode module. Refer to Diode Module Replacement for 1.0L engine or to Diode Module Replacement for the 1.3L engine in Engine Controls.

Is the repair complete?

--

Go to Interior Lamps System Check

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5

Inspect for an open in the BLK/BLU wire between the diode module and the left front door jamb switch.

Is the connection OK?

--

Go to Step 6

Go to Step 7

6

Replace the left front door jamb switch. Refer to Front Side Door Jamb Switch Replacement .

Is the repair complete?

--

Go to Interior Lamps System Check .

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7

Repair the open connection. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check .

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