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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
GENERAL
| Symptom | Suspected Area | Reference |
|---|---|---|
| System does not operate at all (self-check function does not operate) | Clearance warning ECU power source circuit*1 | Refer to Clearance Warning ECU Power Source Circuit |
| Parking assist ECU power source circuit*2 | Refer to ECU Power Source Circuit | |
| Clearance sonar main switch circuit | Refer to Clearance Sonar Main Switch Circuit | |
| CAN communication system | Refer to PRECAUTION | |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL | |
| Outer mirror switch | Refer to REMOVAL | |
| ECU does not operate, when clearance sonar main switch is turned to ON or OFF | Read value using Techstream (EEPROM) | Refer to DATA LIST/ACTIVE TEST |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking Assist ECU*2 | Refer to REMOVAL |
SONAR FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| 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 (w/o advanced parking guidance system) | Front left side sensor malfunction | Refer to DTC C1AE0: Front Left Side Sensor |
| Front left sensor malfunction | Refer to DTC C1AE1: Front Left Sensor Malfunction | |
| Front left center sensor malfunction | Refer to DTC C1AE2: Front Left Center Sensor | |
| Front right center sensor malfunction | Refer to DTC C1AE3: Front Right Center Sensor | |
| Front right sensor malfunction | Refer to DTC C1AE4: Front Right Sensor Malfunction | |
| Front right side sensor malfunction | Refer to DTC C1AE5: Front Right Side Sensor | |
| Clearance warning ECU | Refer to REMOVAL | |
| Open circuit in front sensors is displayed as a result of self-check (w/ advanced parking guidance system) | Front left sensor malfunction | Refer to DTC C1AE1: Front Left Sensor Malfunction |
| Front left center sensor malfunction | Refer to DTC C1AE2: Front Left Center Sensor | |
| Front right center sensor malfunction | Refer to DTC C1AE3: Front Right Center Sensor | |
| Front right sensor malfunction | Refer to DTC C1AE4: Front Right Sensor Malfunction | |
| Front left side sensor malfunction | Refer to DTC C1AE0: Front Left Side Sensor | |
| Front right side sensor malfunction | Refer to DTC C1AE5: Front Right Side Sensor | |
| Parking assist ECU | Refer to REMOVAL | |
| Open circuit in rear sensors is displayed as a result of self-check | Rear right sensor malfunction | Refer to DTC C1AE9: Rear Right Sensor Malfunction |
| Rear right center sensor malfunction | Refer to DTC C1AE8: Rear Right Center Sensor Malfunction | |
| Rear left center sensor malfunction | Refer to DTC C1AE7: Rear Left Center Sensor Malfunction | |
| Rear left sensor malfunction | Refer to DTC C1AE6: Rear Left Sensor Malfunction | |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL | |
| Detection operation operates even when vehicle speed is over 13 km/h (8 mph) | CAN communication system | Refer to PRECAUTION |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL |
DISPLAY FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| Detection operation is normal but sonar displays do not appear on multi-information display | CAN communication system | Refer to PRECAUTION |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL | |
| Combination meter | Refer to REMOVAL | |
| Detection operation is normal but sonar displays do not appear on multi-display | CAN communication system | Refer to PRECAUTION |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL | |
| Display and navigation module display*3 | Refer to REMOVAL | |
| Display and navigation module display*4 | Refer to REMOVAL | |
| Display and navigation module display*5 | Refer to REMOVAL | |
| Detection operation is normal but clearance sonar main switch indicator does not illuminate | CAN communication system | Refer to PRECAUTION |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL | |
| Outer mirror switch | Refer to REMOVAL |
BUZZER FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| Detection operation is normal but buzzer operation is intermittent | Front clearance warning buzzer circuit | Refer to No. 1 Clearance Warning Buzzer Circuit |
| Rear clearance warning buzzer circuit | Refer to No. 2 Clearance Warning Buzzer Circuit | |
| Clearance warning ECU*1 | Refer to REMOVAL | |
| Parking assist ECU*2 | Refer to REMOVAL |
HINT:
*1: w/o Advanced parking guidance system
*2: w/ Advanced parking guidance system
*3: w/ Navigation system (for HDD)
*4: w/ Navigation system (for DVD)
*5: w/o Navigation System