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 connector at the Engine Coolant Temperature Sender.
2. Connect a fused jumper wire from Engine Coolant Temperature Sender connector cavity A to ground.
3. Turn the ignition switch to the RUN position.

Does the temperature gauge indicate HOT?

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Go to Step 3

Go to Step 4

Replace the Engine Coolant Temperature Sender. Refer to Engine Coolant Temperature Sensor Replacement in Engine Cooling, 1999 C/K Service Manual.

Is the repair complete?

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Go to Instrument Cluster System Check

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1. Remove the I/P Cluster.
2. Connect a J 39200 DMM (continuity) between pin 9 of the I/P Cluster connector and cavity A of the Engine Coolant Temperature Sender.

Is continuity present?

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Go to Step 6

Go to Step 5

Locate and repair the open in CKT 35 (DK GRN) between the Engine Coolant Temperature Sender and the I/P Cluster. 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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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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