DTC U0402:00 [DYNAMIC STABILITY CONTROL (DSC)]
id0402b2881800
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DTC
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U0402:00
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Abnormal message from TCM
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DETECTION CONDITION
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• Correct data cannot be received from from the TCM with the ignition switched ON (engine off or on).
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FAIL-SAFE FUNCTION
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• Refer to “Fail-safe Function Malfunction Contents”. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)].)
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POSSIBLE CAUSE
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• The TCM could not send a normal signal temporarily. (DTCs are stored in the TCM.)
• Transmission/transaxle malfunction
• TCM malfunction
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SYSTEM WIRING DIAGRAM
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—
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY TCM DTC
• Using the M-MDS, perform the PCM DTC inspection.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
DTC troubleshooting completed, then go to the next step
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No
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Go to the next step.
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2
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Using the M-MDS, clear the DTC from the DSC HU/CM.
• Using the M-MDS, perform the DSC HU/CM DTC inspection.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step1.
If the malfunction recurs, replace the TCM, then go to the next step.
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No
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Go to the next step.
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3
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VERIFY NO DTC IS 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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