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Diagnosis Procedure
1.CHECK BATTERY VOLTAGE
Measure the battery voltage. Refer to How to Handle BatteryHow to Handle Battery.
Is the inspection result normal?
Replace battery.
 
2.CHECK POWER SUPPLY CIRCUIT
Check Keyless operation key unit power supply circuit. Refer to Diagnosis Procedure.
Is the inspection result normal?
Replace Keyless operation key unit. Refer to Removal and Installation.
Repair the malfunctioning part.