PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: PROBLEM SYMPTOMS TABLE; 2018 - 2020 MY Sienna [11/2017

PROBLEM SYMPTOMS TABLE

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occurs:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.

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 or frozen 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

CAN communication system

Proceed to "Clearance Warning ECU Power Source Circuit"

Proceed to "Clearance Sonar Main Switch Circuit"

Clearance warning ECU

System cannot be turned off

CAN communication system

Data List / Active Test (Intuitive P/A)

Proceed to "Clearance Sonar Main Switch Circuit"

Clearance warning ECU

Sensor Function

Symptom

Suspected Area

See page

Frozen indication is displayed in self-check function.

Proceed to "Sensor Frozen Indication (Dirty or Frozen)"

Combination meter assembly (shift selection) operates normally, but detection operates when shift position is in P, or detection does not operate when shift position is in any position other than P (front sensor)

CAN communication system

Clearance warning ECU

Combination meter assembly (shift selection) operates normally, but detection operates when shift position is not in R, or does not operate with shift position in R (rear sensor)

CAN communication system

Clearance warning ECU

Combination meter assembly (speedometer) operates normally, but detection does not operate when vehicle speed meets operation condition, or detection operates when vehicle speed does not meet operation condition (front sensor)

CAN communication system

Clearance warning ECU

Buzzer Function

Symptom

Suspected Area

See page

Sensor detection operation is normal but buzzer operation is intermittent

Check that the temporary mute function is not operating

Proceed to "Clearance Warning Buzzer Circuit"

Display Function

Symptom

Suspected Area

See page

Detection operation is normal but all sensor displays do not appear

CAN communication system

Clearance warning ECU

Detection operation is normal but sensor displays do not appear on multi-information display

CAN communication system

Combination meter assembly

Clearance warning ECU

Detection operation is normal but sensor displays do not appear on the multi-display

CAN communication system

Radio and display receiver assembly

Rear television camera assembly*1

Parking assist ECU*2

Clearance warning ECU

*1: w/ Parking Assist Monitor System
*2: w/ Panoramic View Monitor System