DTC U0425:68 [INSTRUMENT CLUSTER]
id0902e8987500
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DESCRIPTION |
Signal error from water heater unit |
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DETECTION CONDITION
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• Instrument cluster cannot receive the correct data from the water heater unit.
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POSSIBLE CAUSE
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• Water heater unit malfunction
• Instrument cluster malfunction
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Diagnostic Procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY WATER HEATER SYSTEM DTCs
• Verify the water heater system DTCs using the M-MDS.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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2
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VERIFY WATER HEATER UNIT MALFUNCTION
• Clear the DTC from the instrument cluster using the M-MDS.
• Switch the ignition to ON and wait for 20 s or more.
• Verify the instrument cluster DTC using the M-MDS.
• Is the same DTC present?
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Yes
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Replace the water heater unit, then go to the next step.
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No
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Go to Step 4.
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3
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VERIFY TROUBLESHOOTING COMPLETED
• Clear the DTC from the instrument cluster using the M-MDS.
• Switch the ignition to ON and wait for 20 s or more.
• Verify the instrument cluster DTC using the M-MDS.
• Is the same DTC present?
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Yes
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Replace the instrument cluster, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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