1. Disconnect the engine oil pressure switch connector.
2. Start and idle the engine.

Is the oil pressure warning indicator ON?

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Go to Step 2

Go to Step 5

• Inspect for a short to ground on CKT 31.

Does a short to ground exist on CKT 31?

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Go to Step 3

Go to Step 4

1. Repair the short to ground in CKT 31.
2. Inspect the system.

Is the symptom still present?

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Go to Step 4

System OK

1. Replace the instrument cluster. Refer to Instrument Cluster Replacement .
2. .

Is the repair still present?

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Go to Step 5

System OK

1. Replace the engine oil pressure switch. Refer to Engine Oil Pressure Switch Replacement in Engine Controls.
2. Inspect the system.

Is the symptom still present?

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System OK