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STEP
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INSPECTION
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ACTION
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1
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VERIFY ILLUMINATION OPERATION
Turn the light switch to the TNS position.
Do the instrument cluster, audio unit, rear window defroster switch, and hazard warning switch illuminate correctly?
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Yes
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Go to the next step.
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No
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Go to Step 4.
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2
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INSPECT ILLUMINATION POWER SUPPLY CIRCUIT
Disconnect the climate control unit connector.
Measure the voltage at climate control unit terminal 2G (harness-side).
Is the voltage 10 V or more?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness. Inspect the system for normal operation.
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3
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INSPECT ILLUMINATION GROUND CIRCUIT
Measure the resistance between climate control unit terminal 2O (harness-side) and ground.
Is the resistance less than 5 ohms?
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Yes
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Replace the climate control unit. Inspect the system for normal operation.
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No
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Repair or replace the wiring harness. Inspect the system for normal operation.
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4
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INSPECT INSTRUMENT CLUSTER OPERATION
Inspect the instrument cluster connector.
Is the connector normal?
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Yes
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Operate the system and inspect for any malfunction. If any malfunction is still present, replace the instrument cluster. Inspect the system for normal operation.
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No
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Repair or replace the wiring harness. Inspect the system for normal operation.
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