Toyota Parking Assist-Sensor System Problem Symptoms Table
Toyota Parking Assist-Sensor System -- Problem Symptoms Table |
- HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
GeneralSymptom
| Suspected Area
| See page
|
System does not operate at all (self-check function does not operate)
| Parking assist ECU power source circuit (w/ Side Monitor System)
| Click here
|
Clearance warning ECU power source circuit (w/o Side Monitor System)
| Click here
|
Clearance sonar main switch circuit
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
ECU does not operate when clearance sonar main switch is turned on or off
| Read value using the intelligent tester (EEPROM status)
| Click here
|
Clearance sonar main switch circuit
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Sonar FunctionSymptom
| Suspected Area
| See page
|
Freeze condition is displayed as a result of self-check
| Remove ice, mud or snow from the ultrasonic sensor
| -
|
Open circuit in front sensors is displayed as a result of self-check
| Front left sensor malfunction
| Click here
|
Front right sensor malfunction
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Open circuit in rear sensors is displayed as a result of self-check
| Rear left sensor malfunction
| Click here
|
Rear right sensor malfunction
| Click here
|
Rear left center sensor malfunction
| Click here
|
Rear right center sensor malfunction
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Detection operation operates even when vehicle speed is more than 13 km/h (8 mph)
| CAN communication system ( for LHD)
| Click here
|
CAN communication system (for RHD)
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Display FunctionSymptom
| Suspected Area
| See page
|
Detection operation is normal but sonar displays do not appear on multi-information display
| CAN communication system ( for LHD)
| Click here
|
CAN communication system (for RHD)
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Combination meter assembly
| Click here
|
Detection operation is normal but sonar displays do not appear on multi-display
| CAN communication system ( for LHD)
| Click here
|
CAN communication system (for RHD)
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
Multi-display assembly
| Click here
|
Detection operation is normal but clearance sonar main switch indicator does not illuminate
| Clearance sonar main switch circuit
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|
BuzzerSymptom
| Suspected Area
| See page
|
Detection operation is normal but buzzer operation is intermittent
| Clearance warning buzzer Circuit
| Click here
|
Parking assist ECU (w/ Side Monitor System)
| Click here
|
Clearance warning ECU assembly (w/o Side Monitor System)
| Click here
|