Toyota CH-R Service Manual: System Description
SYSTEM DESCRIPTION
SEAT BELT WARNING SYSTEM DESCRIPTION
(a) Seat belt warning light operation for driver seat belt:
The seat belt warning light on the combination meter assembly blinks or turns off in accordance with the driver seat belt state and vehicle speed.
(b) Seat belt warning light operation for front passenger seat belt:
The seat belt warning light on the combination meter assembly blinks or turns off in accordance with whether the front passenger seat is occupied, the front passenger seat belt state and vehicle speed.
(c) Seat belt warning buzzer:
When the vehicle is driven at 20 km/h (12 mph) or more with the front passenger seat occupied and the driver or front passenger seat belt not fastened, the seat belt warning buzzer in the combination meter assembly will sound at an interval of 1.2 seconds for 30 seconds. After that, the seat belt warning buzzer in the combination meter assembly will sound at an interval of 0.4 seconds for 90 seconds.
FUNCTION OF MAIN COMPONENTS
|
Component |
Function |
|---|---|
|
Front seat inner belt assembly (driver seat) |
Informs the main body ECU (multiplex network body ECU) of the driver seat belt condition (fastened or unfastened). |
|
Front seat inner belt assembly (front passenger seat) |
Informs the combination meter assembly of the front passenger seat belt condition (fastened or unfastened). |
|
Separate type front seat cushion pad (occupant detection sensor) |
Informs the combination meter assembly of the front passenger seat condition (occupied or unoccupied). |
|
Combination meter assembly |
|
|
Main body ECU (multiplex network body ECU) |
Sends the driver seat belt buckle switch signal to the combination meter assembly via CAN communication. |
|
Brake actuator assembly (skid control ECU) |
Sends the vehicle speed signal to the combination meter assembly via CAN communication. |
|
ECM |
Sends the shift position signal to the combination meter assembly via CAN communication. |
Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are u ...
System Diagram
SYSTEM DIAGRAM
...
Other materials:
Toyota CH-R Service Manual > Theft Deterrent System: Power Source Circuit
DESCRIPTION
Based on changes in the power source voltage, the main body ECU (multiplex network
body ECU) can detect if the battery has been disconnected and reconnected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), r ...
Toyota CH-R Service Manual > Mirror (ext): Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MIRROR CONTROL RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
...
Toyota CH-R Owners Manual
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Toyota CH-R Service Manual
- Introduction
- Maintenance
- Audio / Video
- Cellular Communication
- Navigation / Multi Info Display
- Park Assist / Monitoring
- Brake (front)
- Brake (rear)
- Brake Control / Dynamic Control Systems
- Brake System (other)
- Parking Brake
- Axle And Differential
- Drive Shaft / Propeller Shaft
- K114 Cvt
- 3zr-fae Battery / Charging
- Networking
- Power Distribution
- Power Assist Systems
- Steering Column
- Steering Gear / Linkage
- Alignment / Handling Diagnosis
- Front Suspension
- Rear Suspension
- Tire / Wheel
- Tire Pressure Monitoring
- Door / Hatch
- Exterior Panels / Trim
- Horn
- Lighting (ext)
- Mirror (ext)
- Window / Glass
- Wiper / Washer
- Door Lock
- Heating / Air Conditioning
- Interior Panels / Trim
- Lighting (int)
- Meter / Gauge / Display
- Mirror (int)
- Power Outlets (int)
- Pre-collision
- Seat
- Seat Belt
- Supplemental Restraint Systems
- Theft Deterrent / Keyless Entry
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