Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Instrument Cluster System Check

1. Disconnect the Fuel Tank Sender connector at the left side frame rail.
2. Turn the ignition switch to the RUN position.

Does the fuel gauge read Full or higher?

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Go to Step 6

Go to Step 3

Connect a J 39200 DMM (continuity) between cavities A & B of the fuel pump and sender connector.

Does the resistance read according to fuel level?

0 ohms Empty/90 ohms Full

Go to Step 4

Go to Step 6

1. Connect the Fuel Tank Sender and Pump connector.
2. Remove the I/P Cluster. Refer to Instrument Cluster Replacement
3. Connect a J 39200 DMM (continuity) between pin 29 of the I/P Cluster connector and ground.

Does the resistance read according to fuel level?

0 ohms Empty/90 ohms Full

Go to Step 5

Go to Step 7

Replace the I/P Cluster. Refer to Instrument Cluster Replacement

Is the repair complete?

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Go to Instrument Cluster System Check

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Replace the Fuel Pump and Sender. Refer to Fuel Sender Assembly Replacement in Engine Controls, 1999 C/K Service Manual.

Is the repair complete?

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Go to Instrument Cluster System Check

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Locate and repair the open in CKT 30 (PPL) between the I/P Cluster and Fuel Pump and Sender. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Instrument Cluster System Check

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