GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Electrical 🢒 Turn Signal Indicator Inoperative - Right Side

Step

Action

Value(s)

Yes

No

1

Was the instrument panel cluster (IPC) system check performed?

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Go to Step 2

Go to Instrument Cluster System Check

2
  1. Turn the ignition switch to the OFF position.
  2. Disconnect the cluster connector and remove the connector combs.
  3. Backprobe (to prevent damage to the terminal) with a test lamp between the DK BLU (15) cavity B10 to ground.
  4. Turn the ignition switch to the RUN position.
  5. Turn the left turn signal ON.

Does the test lamp light?

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Go to Step 3

Go to Turn Signal Lamps Inoperative

3

Inspect the turn signal bulb. If the bulb is OK replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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Go to Instrument Cluster System Check

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