Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
When an open circuit indication is displayed by the self-check function, check for DTCs and troubleshoot according to each inspection procedure.

General

Symptom	Suspected Area	See page
System does not operate at all.	Clearance warning ECU power source circuit
	Clearance sonar main switch circuit
	Clearance warning ECU assembly
System cannot be turned off.	Clearance sonar main switch circuit
System cannot be turned off.	Clearance warning ECU assembly

Sonar Function

Symptom	Suspected Area	See page
Frozen indication is displayed in self-check function.	Precaution
	Replace ultrasonic sensor in part where frozen indication is displayed	-
	Clearance warning ECU assembly
Combination meter assembly (shift indicator) operates normally, but detection operates when shift lever is in P, or detection does not operate when shift lever is in any position other than P (front ultrasonic sensor).	CAN communication system
	Clearance warning ECU assembly
Combination meter assembly (shift indicator) operates normally, but detection operates when shift lever is in any position other than R, or detection does not operate when shift lever is in R (rear ultrasonic sensor).	CAN communication system
	Clearance warning ECU assembly
Detection operation operates even when vehicle speed exceeds the operation condition speed.	CAN communication system
	Clearance warning ECU assembly

Buzzer Function

Symptom	Suspected Area	See page
Sonar detection operation is normal but buzzer operation is intermittent.	Clearance warning buzzer circuit
	Clearance warning ECU assembly

Display Function

Symptom	Suspected Area	See page
Detection operation is normal but sonar displays of multi-information display do not appear.	CAN communication system
	Meter / gauge system
	Clearance warning ECU assembly

Operation Check

OPERATION CHECK 1. MALFUNCTION BUZZER (a) Open circuit or frozen (1) If an open circuit is detected between the ultrasonic sensors and the clearance warning ECU assembly, if a sensor malfunction ...

Terminals Of Ecu

TERMINALS OF ECU 1. CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the D79 clearance warning ECU assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table ...

Other materials about Toyota Venza:

Room Oscillator does not Recognize Key
DESCRIPTION If the room oscillator does not recognize a key, one of the following may be the cause: 1) communication between the indoor electrical key oscillator (for front floor) and key cannot be performed; 2) communication between the indoor electrical ...

AVC-LAN Circuit
DESCRIPTION Each unit of the navigation system connected to the AVC-LAN (communication bus) transmits switch signals via AVC-LAN communication. If a short to +B or short to ground occurs in the AVC-LAN, the navigation system will not function normally be ...

Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The passenger side buckle switch circuit consists of the occupant classification ECU and front seat inner belt assembly RH. DTC B1771 is recorded when a malfunction is detected in the passenger side buckle switch circuit. Troubleshoot DTC B1 ...