Toyota Tundra Service Manual: Problem Symptoms Table

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Problem Symptoms Table

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.

General

Symptom	Suspected Area	See page
System does not operate at all (Initial check function also does not operate)	Proceed to "Clearance Warning ECU Power Source Circuit"
	Replace clearance warning ECU assembly

Sonar Function

Symptom	Suspected Area	See page
Clearance warning indicator indicates front corner sensor is frozen	Clean the sensor surface
	Proceed to "Front Clearance Sonar Sensor LH Circuit"
	Proceed to "Front Clearance Sonar Sensor RH Circuit"
	Replace clearance warning ECU assembly
Clearance warning indicator indicates rear corner sensor is frozen	Clean the sensor surface
	Proceed to "Rear Clearance Sonar Sensor LH Circuit"
	Proceed to "Rear Clearance Sonar Sensor RH Circuit"
	Replace clearance warning ECU assembly
Clearance warning indicator indicates rear center sonar sensor is frozen	Clean the sensor surface
	Proceed to "Back Sonar Sensor LH Circuit"
	Proceed to "Back Sonar Sensor RH Circuit"
	Replace clearance warning ECU assembly
Clearance warning indicator indicates open in rear sensor circuit	Initial check function
	Proceed to "Rear Clearance Sonar Sensor RH Circuit"
	Proceed to "Back Sonar Sensor RH Circuit"
	Proceed to "Back Sonar Sensor LH Circuit"
	Proceed to "Rear Clearance Sonar Sensor LH Circuit"
	Replace clearance warning ECU assembly
Clearance warning indicator indicates open in front corner sensor circuit	Initial check function
	Proceed to "Front Clearance Sonar Sensor LH Circuit"
	Proceed to "Front Clearance Sonar Sensor RH Circuit"
	Replace clearance warning ECU assembly
System operates even when vehicle speed is 10 km/h (6.2 mph) or more	Proceed to "Vehicle speed signal circuit"
	Replace clearance warning ECU assembly
Rear corner and rear center operates when shift lever is not in R, or does not operate even when shift lever is in R	Proceed to "Park / Neutral Position Switch Circuit"
	Replace clearance warning ECU assembly

Buzzer Function

Symptom	Suspected Area	See page
Buzzer in combination meter assembly continues to sound indicating a malfunction while the system is on	Precaution
	Proceed to "Clearance Warning Buzzer Circuit"
	Replace clearance warning ECU assembly

Indicator Function

Symptom	Suspected Area	See page
Detection operation is normal but clearance warning indicator does not illuminate	Precaution
	Proceed to "Indicator Circuit"
	Replace clearance warning ECU assembly

Precaution

Rear Clearance Sonar Sensor LH Circuit

See More:

Toyota Tundra Service Manual > Ignition Switch: Removal
REMOVAL PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (See page ). 2. ...

Toyota Tundra Service Manual: Problem Symptoms Table

Precaution

Rear Clearance Sonar Sensor LH Circuit

See More:

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