GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition switch to the RUN position.
  2. Place the multi-function lever in the right turn position.
  3. Observe the right front park/turn lamp.

Does the right turn signal operate?

--

Go to Step 2

Go to Exterior Lights

2

  1. Remove the instrument cluster.
  2. Connect a test lamp from the instrument cluster connector terminal B10 to ground.
  3. Turn the ignition switch to the RUN position.
  4. Place the multi-function lever in the right turn position.

Does the test lamp blink on then off?

--

Go to Step 3

Go to Step 4

3

  1. Check for a poor connection at the instrument cluster terminal B10.
  2. If the connection is OK, replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

--

4

Repair the open in circuit 1415 (USA or Gulf States) or circuit 15 (Europe or Japan).

Is the repair complete?

--

System OK

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