DTC U0402:68 [INSTRUMENT CLUSTER]
id0902e8988900
DTC U0402:68 |
Signal error from TCM |
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Detection Condition
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• Instrument cluster receives the error signal from TCM.
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Possible Causes
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• TCM malfunction
• Instrument cluster malfunction
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Diagnostic Procedure
Step |
Inspection |
Action |
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1
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PERFORM TCM DTC INSPECTION
• Perform the TCM DTC inspection using the M-MDS.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [FN4A-EL].)
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No
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Go to the next step.
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2
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PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS TCM
• Clear the DTC using the M-MDS.
• Turn the ignition switch to the ON position and wait for 20 s or more.
• Perform the instrument cluster DTC inspection using the M-MDS.
• Is the same DTC present?
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Yes
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Replace the TCM, 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 using the M-MDS.
• Turn the ignition switch to the ON position and wait for 20 s or more.
• Perform the instrument cluster DTC inspection using the M-MDS.
• Is the same DTC present?
|
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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