SIMPLE INTELLIGENT PARKING ASSIST SYSTEM PROBLEM SYMPTOMS TABLE

Symptom Suspected Area Link
Parking assist detection mode cannot be entered even though the IPA main switch assembly is pressed Proceed to "Main Switch Circuit"

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Proceed to "Clearance Warning ECU Power Source Circuit"

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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The buzzer does not sound when a parking space is detected, or when simple intelligent parking assist system operation is completed or canceled It may be difficult to hear the buzzer sounds depending on the vehicle conditions, such as when the Toyota parking assist-sensor system buzzer sounds simultaneously or the audio volume level is high -
Meter / gauge system

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The vehicle cannot be parked in a target parking space Refer to Operation Description in System Description to check the usage conditions and perform the operation again

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Refer to Precaution for simple intelligent parking assist system and ultrasonic sensor

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Check tire pressure -
Check the installation condition of the bumper and all ultrasonic sensors -
Initialization of simple intelligent parking assist system

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Proceed to "Vehicle does not Move to Set Parking Position"

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Ultrasonic sensor (for Front Side)

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Ultrasonic sensor (for Rear Side)

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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A parking space cannot be detected Refer to Operation Description in System Description to check the usage conditions and perform the operation again

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Refer to Precaution for simple intelligent parking assist system and ultrasonic sensor

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Check the installation condition of the bumper and all ultrasonic sensors -
Ultrasonic sensor (for Front Side)

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Ultrasonic sensor (for Rear Side)

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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An unsuitable parking space is detected Refer to Operation Description in System Description to check the usage conditions and perform the operation again

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Refer to Precaution for simple intelligent parking assist system and ultrasonic sensor

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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After a parking space is detected, automatic steering does not start even though the shift lever is moved to R Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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During parking space detection mode, the mode does not change to driver seat parking space detection mode even though the turn signal switch is operated to turn on the driver seat side signal Meter / gauge system

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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"MEMORY ERROR" is displayed on the multi-information display during initialization and initialization cannot be completed Check DTC

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Clearance warning ECU assembly (for LHD)

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Clearance warning ECU assembly (for RHD)

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"IPA NOT AVAILABLE, STOP THE VEHICLE, TURN WHEEL FROM LEFT END TO RIGHT END" is displayed on the multi-information display when the IPA main switch assembly is pressed Memorized maximum steering angle

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