Important: Check engine coolant level before performing this diagnosis.

1. Disconnect the engine coolant level indicator module.
2. Turn the ignition switch to the RUN position.

Is the engine coolant level indicator on?

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Go to Step 2

Go to Step 6

1. Turn the ignition switch to the OFF position.
2. Disconnect connector C200A from connector C200D.
3. Connect a test lamp from connector C200A terminal A17 to B+.

Does the test lamp light?

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Go to Step 7

Go to Step 3

1. Disconnect body control module (BCM) connector C3.
2. Connect a test lamp from BCM connector C3 terminal C15 to B+.

Does the test lamp light?

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Go to Step 4

Go to Step 8

1. Remove the instrument cluster.
2. Connect a test lamp from the instrument cluster connector terminal A15 to B+.

Does the test lamp light?

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Go to Step 5

Go to Step 9

Repair the short to ground in circuit 68 between the instrument cluster and C200D or the BCM.

Is the repair complete?

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System OK

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Replace the engine coolant level indicator module. Refer to Coolant Level Sensor Replacement .

Is the repair complete?

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System OK

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Repair the short to ground in circuit 68 between connector C200A and the engine coolant level indicator sensor.

Is the repair complete?

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System OK

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Replace the BCM. Refer to Body Control Module Replacement .

Is the repair complete?

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System OK

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Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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System OK

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