Toyota CH-R Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the occupant classification system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Confirm problem symptoms.
Click here .gif)
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3. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check that the CAN communication system is functioning normally.
OK:
CAN communication system is functioning normally.
HINT:
- Refer to CAN Bus Check in CAN Communication System.
Click here
- The occupant detection ECU is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
| NG | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
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4. |
PASSENGER AIRBAG ON/OFF INDICATOR CHECK |
(a) Refer to Diagnosis System.
Click here
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5. |
DTC CHECK (Present and History DTCs)* |
(a) Refer to DTC Check / Clear.
Click here
OK:
DTCs are not output.
| OK | |
GO TO PROBLEM SYMPTOMS TABLE |
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6. |
DIAGNOSTIC TROUBLE CODE CHART |
(a) Refer to Diagnostic Trouble Code Chart.
Click here
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7. |
CIRCUIT INSPECTION* |
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8. |
REPAIR |
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9. |
CLEAR DTCS (Present and History DTCs)* |
(a) Refer to DTC Check / Clear.
Click here
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10. |
DTC CHECK* |
(a) Refer to DTC Check / Clear.
Click here
OK:
DTCs are not output.
| NG | |
GO TO STEP 6 |
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11. |
SYMPTOM SIMULATION |
(a) Check the passenger airbag ON/OFF indicator condition.
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12. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
(Transmitter)
Receiving ECU
Signal
Communication Method
Airbag Sensor Assembly
...
System Description
SYSTEM DESCRIPTION
GENERAL
(a) The occupant detection ECU estimates the weight of an occupant based on signals
received from the 2 occupant classification sensors. The occupant detection ECU
det ...
Other materials:
Toyota CH-R Service Manual > Seat Belt Warning System(w/o Occupant Classification System): Problem Symptoms Table
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 sy ...
Toyota CH-R Service Manual > Seat Belt Warning System(w/ Occupant Classification System): Parts Location
PARTS LOCATION
ILLUSTRATION
*1
BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)
*2
ECM
ILLUSTRATION
*1
MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
*2
INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- ECU-DC ...
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
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- 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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