GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Exterior Lights System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2

  1. Backprobe the turn signal/hazard switch connector C202 with a DMM from cavity B10 (PNK) to cavity A6 (WHT).
  2. Turn the ignition switch to the RUN position.
  3. Press the hazard button.

Is the voltage within the specified range?

10-15V

Go to Step 5

Go to Step 3

3

Inspect CKT 351 (BLK/WHT) between C202 and S203 for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 351 OK?

--

Go to Step 4

Go to Step 7

4

Replace the turn signal/hazard switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--

5

Inspect CKT 111 (WHT) for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 111 OK?

--

Go to Step 6

Go to Step 7

6

Replace the turn signal flasher. Refer to Hazard and Turn Signal Flasher Replacement .

Is the repair complete?

--

Go to Exterior Lights System Check

--

7

Repair the faulty wiring. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check

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