Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B1XT
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE; 2019 - 2022 MY Avalon [04/2018 -        ]

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.

Entire System

Symptom

Suspected Area

Link

System does not operate at all

Proceed to "Power Source Circuit"

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): Power Source Circuit

CAN communication system

2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

System cannot be turned off

CAN communication system

2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

"Blind Spot Monitor Unavailable" or "Blind Spot Monitor System Malfunction Visit Your Dealer" is displayed on the multi-information display

Check abnormality history

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Combination meter assembly

2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

"Rear Cross Traffic Alert Unavailable" or "Rear Cross Traffic Alert Malfunction Visit Your Dealer" is displayed on the multi-information display

Check abnormality history

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Combination meter assembly

2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

Blind Spot Monitor Function

Symptom

Suspected Area

Link

Outer rear view mirror indicator RH does not illuminate

Proceed to "Blind Spot Monitor Beam Axis Confirmation"

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT

Outer mirror RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR GLASS: REMOVAL

Outer mirror control ECU assembly RH*3

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER MIRROR CONTROL ECU: REMOVAL

Outer rear view mirror assembly RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator LH does not illuminate

Proceed to "Blind Spot Monitor Beam Axis Confirmation"

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT

Outer mirror LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR GLASS: REMOVAL

Outer mirror control ECU assembly LH*3

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER MIRROR CONTROL ECU: REMOVAL

Outer rear view mirror assembly LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator RH remains illuminated

Proceed to "Blind Spot Monitor Beam Axis Confirmation"

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator LH remains illuminated

Proceed to "Blind Spot Monitor Beam Axis Confirmation"

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator RH does not flash

Proceed to "Turn Signal Light" in Problem Symptoms Table for the Lighting (EXT) section*4

2019 - 2020 MY Avalon [04/2018 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE 2021 MY Avalon [08/2020 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE

Proceed to "Turn Signal Light" in Problem Symptoms Table for the Lighting (EXT) section*5

2019 - 2020 MY Avalon [04/2018 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE 2021 MY Avalon [08/2020 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator LH does not flash

Proceed to "Turn Signal Light" in Problem Symptoms Table for the Lighting (EXT) section*4

2019 - 2020 MY Avalon [04/2018 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE 2021 MY Avalon [08/2020 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with Cornering Light): PROBLEM SYMPTOMS TABLE

Proceed to "Turn Signal Light" in Problem Symptoms Table for the Lighting (EXT) section*5

2019 - 2020 MY Avalon [04/2018 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE 2021 MY Avalon [08/2020 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): PROBLEM SYMPTOMS TABLE

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator RH continues to flash

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Outer rear view mirror indicator LH continues to flash

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

RCTA Function

Symptom

Suspected Area

Link

Function does not operate at all

(Blind spot monitor function operates normally)

Data list / active test (Reverse)

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST

Automatic transmission system

2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

While RCTA function is active, outer rear view mirror indicator flashes but RCTA buzzer does not sound.

Proceed to "Buzzer does not Sound"

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for Gasoline Model): Buzzer does not Sound

When shift lever is in R, detection operation is normal but RCTA indicator does not appear on multi-display

CAN communication system

2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Blind spot monitor sensor RH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Blind spot monitor sensor LH

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

Radio and display receiver assembly

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

Television camera assembly*1

2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: TELEVISION CAMERA(for Rear): REMOVAL

Parking assist ECU*2

2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; PARK ASSIST / MONITORING: PARKING ASSIST ECU: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST ECU: REMOVAL

  • *1: w/ Parking Assist Monitor System
  • *2: w/ Panoramic View Monitor System
  • *3: w/ Seat Memory
  • *4: for HV Model with Cornering Light
  • *5: for HV Model without Cornering Light