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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 WHETHER MALFUNCTION IS IN WARNING LIGHTS' COMMON POWER SUPPLY, OR OTHER WARNING LIGHTS AND INDICATOR LIGHTS
• Do other warning and indicator lights illuminate when IG switch is turned ON?
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Yes
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Go to step 5.
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No
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Go to next step.
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2
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INSPECT INSTRUMENT CLUSTER POWER SUPPLY FUSE
• Is instrument cluster ignition power supply fuse normal?
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Yes
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Go to next step.
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No
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Inspect for a short to ground on blown fuse's circuit.
Repair or replace as necessary.
Install appropriate amperage fuse.
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3
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN INSTRUMENT CLUSTER POWER SUPPLY AND INSTRUMENT CLUSTER FOR CONTINUITY) OR INSTRUMENT CLUSTER
• Turn ignition switch ON.
• Measure voltage at instrument cluster connector (24-pin) terminal 2V.
• Is voltage approx. 12 V?
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Yes
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Go to next step.
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No
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Inspect for open circuit between instrument cluster and ground.
Repair or replace as necessary.
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4
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CONFIRM DTC U1900 USING WDS OR EQUIVALENT
• Retrieve DTC from PCM, ABS, and instrument cluster.
• Is DTC U1900 retrieved?
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Yes
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Go to next step.
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No
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Inspect instrument cluster. If OK, then go to step 7.
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5
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CONFIRM THE FOLLOWING PIDs USING WDS OR EQUIVALENT
• ABS_MSG
• PCM_MSG
• Is "not present'' massage displayed on WDS or equivalent?
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Yes
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Replace instrument cluster (open circuit in instrument cluster).
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No
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Network communication, for related system is malfunction.
Repair or replace as necessary.
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6
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CONFIRM DTC B2477 FOR INSTRUMENT CLUSTER USING WDS OR EQUIVALENT
• Retrieve DTC from PCM, ABS, and instrument cluster.
• Is DTC B2477 retrieved?
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Yes
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Re-configure the instrument cluster.
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No
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Replace ABS HU/CM.
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