GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you review the Instrument Cluster Circuit Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Instrument Panel, Gages and Console

2

Verify that the fuel gauge is inoperative.

Does the fuel gauge operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Disconnect the fuel sender assembly connector.
  2. Turn the ignition to ON, with the engine OFF.
  3. Test for a short to ground condition from cavity 4 to chassis ground.

Is a short to ground condition present?

Go to Step 4

Go to Step 5

4

Repair the short in the BLK/YEL wire. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

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5

Test the BLU/WHT wire from the fuel level sensor cavity 2 with a fused jumper wire to ground.

Does the fuel gauge indicate E?

Go to Step 6

Go to Step 7

6

Replace the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .

Did you complete the repair?

Go to Step 12

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7

Test for an open condition from the fuel sender assembly cavity 2 to the Instrument Cluster connector C3 cavity 3.

Is an open condition present?

Go to Step 8

Go to Step 9

8

Repair the open in the BLU/WHT wire between the fuel gauge and the fuel sender assembly. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

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9

Inspect the instrument panel cluster for any damage to the printed circuit.

Is damage to the printed circuit present?

Go to Step 10

Go to Step 11

10

Replace the instrument panel cluster printed circuit. Refer to Printed Instrument Cluster Circuit Replacement .

Did you complete the replacement?

Go to Step 12

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11

Replace the fuel gauge. Refer to Fuel/Temperature Gage Replacement .

Did you complete the replacement?

Go to Step 12

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12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3