GM Service Manual Online
For 1990-2009 cars only

LH Turn Indicator Inoperative

Step

Action

Value(s)

Yes

No

1

Activate the turn signal switch so that the LH turn signal lamp is ON.

Does the LH turn signal lamp turn ON?

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Go to Step 2

Refer to Exterior Lamps

2

  1. Disconnect the instrument cluster connector.
  2. Connect a test light between terminal A15 of the instrument cluster connector and a known good ground.

Does the test light pulse ON and OFF?

--

Go to Step 4

Go to Step 3

3

Locate and repair an open or a high resistance in CKT 14.

Is the repair complete?

--

Recheck System Operation

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4

Repair the instrument cluster. Refer to Instrument Cluster Replacement

Is the repair complete?

--

Recheck System Operation

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