GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Set the park brake.
  2. Turn the ignition switch to the RUN position.
  3. Move the turn signal lever to the inoperable side.
  4. • For the left side: using a test light, backprobe between the left cornering lamp C141 terminal K and ground.
    • For the right side: using a test light, backprobe between the right cornering lamp C142 terminal K and ground.

Does the test light flash on and off?

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Go to Step 2

Go to Step 3

2

Replace the headlamp. Refer to Headlamp Replacement .

Has the repair been made?

--

Go to Exterior Lights System Check

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3

    • For the left side: repair a poor connection or an open in circuit 57.
    • For the right side: repair a poor connection or an open in circuit 58.

Has the repair been made?

--

Go to Exterior Lights System Check

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