GM Service Manual Online
For 1990-2009 cars only

Turn Signal Indicators Inoperative - Left Side or Right

Step

Action

Value(s)

Yes

No

1

Was the entire exterior lights system check performed?

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Go to Step 2

Go to Exterior Lights System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Connect a test light between the instrument cluster terminal A12 (left turn) or B10 (right turn) and ground.
  3. Place the turn signal switch to the TURN LEFT or TURN RIGHT position depending on which is inoperative.

Does the test light illuminate?

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Go to Step 3

Go to Step 4

3

Replace the instrument cluster. Refer to Instrument Cluster Replacement

Is the repair complete?

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Go to Step 5

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4

Repair the poor connection or open in circuit 1414 (left turn) or 1415 (right turn).

Is the repair complete?

--

Go to Step 5

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5

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors /components removed.

Have all repairs been made?

--

Go to Exterior Lights System Check

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