Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ9R
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: PROBLEM SYMPTOMS TABLE; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

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

See page

System does not operate at all (self-check function does not operate)

Clearance Warning ECU Power Source Circuit

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Warning ECU Power Source Circuit

Clearance Sonar Main Switch Circuit

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Sonar Main Switch Circuit

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

ECU does not operate when clearance sonar main switch is turned on or off

Clearance Sonar Main Switch Circuit

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Sonar Main Switch Circuit

Read value using the Techstream (EEPROM status)

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: DATA LIST / ACTIVE TEST

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Sonar Function

Symptom

Suspected Area

See page

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 Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE1; Front Left Sensor Malfunction

Front Right Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE4; Front Right Sensor Malfunction

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Open circuit in rear sensors is displayed as a result of self-check

Rear Left Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE6; Rear Left Sensor Malfunction

Rear Right Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE9; Rear Right Sensor Malfunction

Rear Left Center Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE7; Rear Left Center Sensor Malfunction

Rear Right Center Sensor Malfunction

2016 - 2020 MY Sienna [12/2015 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE8; Rear Right Center Sensor Malfunction

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Detection operation operates even when vehicle speed is more than 13 km/h (8 mph)

CAN Communication System

2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Display Function

Symptom

Suspected Area

See page

Detection operation is normal but sonar displays do not appear on multi-information display (combination meter assembly)

CAN communication system

2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Combination meter assembly

2016 - 2020 MY Sienna [12/2015 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

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

CAN Communication System

2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

Parking Assist ECU*1

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: PARKING ASSIST ECU: REMOVAL

AVC-LAN*1

-

Navigation Receiver Assembly*1

2016 - 2017 MY Sienna [12/2015 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION RECEIVER: REMOVAL

Radio and display receiver assembly*2

2016 - 2017 MY Sienna [12/2015 - 11/2017]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

Detection operation is normal but clearance sonar main switch indicator does not illuminate

Clearance Sonar Main Switch Circuit

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Sonar Main Switch Circuit

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

  • *1: w/ Navigation System
  • *2: w/o Navigation System

Buzzer Function

Symptom

Suspected Area

See page

Detection operation is normal but buzzer operation is intermittent

Clearance Warning Buzzer Circuit

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Warning Buzzer Circuit

Clearance Warning ECU

2016 - 2017 MY Sienna [12/2015 - 11/2017]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL