Possible cause | SRS airbag ECU to seat belt tensioner short circuited to 24 V |
Detail
- Remove the driver's seat.
- Remove the bed if so equipped and remove the bar supporting the bottom of the bed.
- Remove the shift console and parking brake lever console.
- Remove the scuff plate.
- Pull up the floor carpet.
- Remove the seat belt anchor.
- Turn the starter key to the "LOCK" position, wait for 90 seconds or more, and disconnect the yellow connector of the cab floor.
Push in the direction of the arrow to disconnect it.
- Using the diagnosis monitor, delete the past malfunction code and then output the present malfunction code again.
Standard
Output of diagnosis monitor code 11: Proceed to steps under YES.
Output of diagnosis monitor code 8: Proceed to steps under NO.
NO
Proceed to [3]Measuring voltage between terminals.
YES
Measuring voltage between terminals
Detail
- Turn the starter key to the "LOCK" position, wait for 90 seconds or more, and disconnect the yellow connector of the SRS airbag ECU.
- Turn the starter key "ON" and measure voltage between the terminal of the yellow connector on the cab main harness side of the cab floor and the body GND.
Standard value: 0 V
NO
Cab main harness abnormalityYES
SRS airbag ECU abnormality
Detail
- Turn the starter key to the "LOCK" position, wait for 90 seconds or more, and remove the seat belt tensioner.
- Pull up the black portion of the yellow connector to unlock and disconnect the yellow connector.
- Turn the starter key "ON" and measure voltage between the terminal of the yellow connector on the pretensioner side of the cab floor and the body GND.
Standard value: 0 V
NO
Harness abnormality between cab floor and pretensionerYES
Pretensioner abnormality
Detail
- Confirm the DTC B0133 is inactive
- Start the engine and let it idling condition.
- Verify the DTC B0133 is inactive.
- DTC Clear
- Clear the DTC with Hino DX
- Confirm the same DTC is not reoccurred
- B0133 is reoccur: Return to first process
- Other DTC appear: Refer to concerned Trouble shooting
Complete