Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014XSZ
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 -           ]
Title: HORN: HORN SYSTEM: PROBLEM SYMPTOMS TABLE; 2018 - 2024 MY Camry HV [07/2017 -        ]

PROBLEM SYMPTOMS TABLE

NOTICE:

Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2020 - 2022 MY Camry HV [09/2019 - 08/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2023 - 2024 MY Camry HV [08/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION

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.

Horn System

Symptom

Suspected Area

Link

Horn does not sound

HORN fuse

-

HORN relay

2018 - 2024 MY Camry HV [07/2017 -        ]; HORN: RELAY: ON-VEHICLE INSPECTION

Horn button assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD: REMOVAL

Spiral cable sub-assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

Instrument panel junction block assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Harness or connector

-

Horn sounds all the time

HORN relay

2018 - 2024 MY Camry HV [07/2017 -        ]; HORN: RELAY: ON-VEHICLE INSPECTION

Horn button assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD: REMOVAL

Spiral cable sub-assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

Instrument panel junction block assembly

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Main body ECU (Multiplex network body ECU)

2018 - 2020 MY Camry HV [07/2017 - 10/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Harness or connector

-

Low pitched horn operates but high pitched horn does not operate

High pitched horn assembly

2018 - 2024 MY Camry HV [07/2017 -        ]; HORN: HORN: INSPECTION

Harness or connector

-

High pitched horn operates but low pitched horn does not operate

Low pitched horn assembly

2018 - 2024 MY Camry HV [07/2017 -        ]; HORN: HORN: INSPECTION

Harness or connector

-