Problem Symptoms Table [09/2013 - ]

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	Refer To
System does not operate at all (self-check function does not operate)	Clearance warning ECU power source circuit	Refer to Clearance Warning ECU Power Source Circuit [09/2013 - ]
	Clearance sonar main switch circuit	Refer to Clearance Sonar Main Switch Circuit [09/2013 - ]
	CAN communication system	Refer to PRECAUTION [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
	Outer mirror switch	Refer to REMOVAL [09/2013 - ]
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 [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]

SONAR FUNCTION

Symptom	Suspected Area	Refer To
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 side sensor malfunction	Refer to DTC C1AE0: Front Left Side Sensor [09/2013 - ]
	Front left sensor malfunction	Refer to DTC C1AE1: Front Left Sensor Malfunction [09/2013 - ]
	Front left center sensor malfunction	Refer to DTC C1AE2: Front Left Center Sensor [09/2013 - ]
	Front right center sensor malfunction	Refer to DTC C1AE3: Front Right Center Sensor [09/2013 - ]
	Front right sensor malfunction	Refer to DTC C1AE4: Front Right Sensor Malfunction [09/2013 - ]
	Front right side sensor malfunction	Refer to DTC C1AE5: Front Right Side Sensor [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
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 [09/2013 - ]
	Rear right center sensor malfunction	Refer to DTC C1AE8: Rear Right Center Sensor Malfunction [09/2013 - ]
	Rear left center sensor malfunction	Refer to DTC C1AE7: Rear Left Center Sensor Malfunction [09/2013 - ]
	Rear left sensor malfunction	Refer to DTC C1AE6: Rear Left Sensor Malfunction [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
Detection operation operates even when vehicle speed is over 13 km/h (8 mph)	CAN communication system	Refer to PRECAUTION [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]

DISPLAY FUNCTION

Symptom	Suspected Area	Refer To
Detection operation is normal but sonar displays do not appear on multi-information display	CAN communication system	Refer to PRECAUTION [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
	Combination meter	Refer to REMOVAL [09/2013 - ]
Detection operation is normal but sonar displays do not appear on multi-display	CAN communication system	Refer to PRECAUTION [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
	Multi-media module receiver	Refer to REMOVAL [09/2013 - ]
	Accessory meter	Refer to REMOVAL [09/2013 - ]
Detection operation is normal but clearance sonar main switch indicator does not illuminate	CAN communication system	Refer to PRECAUTION [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]
	Outer mirror switch	Refer to REMOVAL [09/2013 - ]

BUZZER FUNCTION

Symptom	Suspected Area	Refer To
Detection operation is normal but buzzer operation is intermittent	Front clearance warning buzzer circuit	Refer to No. 1 Clearance Warning Buzzer Circuit [09/2013 - ]
	Rear clearance warning buzzer circuit	Refer to No. 2 Clearance Warning Buzzer Circuit [09/2013 - ]
	Clearance warning ECU	Refer to REMOVAL [09/2013 - ]