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 > Toyota Entune System: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Telematics / Trouble Codes.
Body Electrical > Telematics > Trouble Codes
(e) Check for DTCs.
Click here
...
Toyota CH-R Service Manual > Airbag System: Lost Communication with Front Airbag Sensor RH (B1612/83,B1613/83)
DESCRIPTION
The front airbag sensor RH circuit consists of the airbag sensor assembly and
front airbag sensor RH.
The front airbag sensor RH detects impacts to the vehicle and sends signals to
the airbag sensor assembly to determine if the airbags and pretensioners should
be deployed.
These ...
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
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