WHEEL UNIT ID REGISTRATION CANNOT BE PERFORMED [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]
WHEEL UNIT ID REGISTRATION CANNOT BE PERFORMED [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]
SM2778854
id020305000500
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Caution
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• Activate the wheel unit ID registration mode using the M-MDS, and perform the following steps if the TPMS warning light does not turn off after driving at 25 km/h {16 mph} or more for 3 min or more.
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Troubleshooting item |
Wheel unit ID registration cannot be performed |
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Description
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• TPMS warning light flashes
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Possible cause
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• New wheel unit malfunction (caused when installing to wheel).
• Any malfunction on an old wheel unit which has not been replaced.
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Diagnostic Procedure
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Step |
Inspection |
Results |
Action |
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1
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PERFORM WHEEL UNIT ID REGISTRATION
• Perform the wheel unit ID registration. (See WHEEL UNIT ID REGISTRATION.)
• Can the ID be registered?
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Yes
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Symptom troubleshooting completed.
Explain to the customer what has been repaired.
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No
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Go to the next step.
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2
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IDENTIFY UNREGISTERED WHEEL UNIT
• Identify the malfunctioning wheel unit.
• Is the wheel unit for which the ID could not be registered a new wheel unit?
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Yes
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Replace with a new wheel unit, then perform the repair completion verification.
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No
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Replace the old wheel unit, then perform the repair completion verification (any malfunction on an old wheel unit which has not been replaced).
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Repair completion verification
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PERFORM WHEEL UNIT ID REGISTRATION
• Perform the wheel unit ID registration again. (See WHEEL UNIT ID REGISTRATION.)
• Can the ID be registered?
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Yes
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Symptom troubleshooting completed.
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No
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
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