How To Proceed With Troubleshooting [12/2021 - ]: Procedure
- VEHICLE BROUGHT TO WORKSHOP
Result
Proceed to NEXT Result:
NEXT
See step 2
- CUSTOMER PROBLEM ANALYSIS
- Confirm problem symptoms.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 3
- Confirm problem symptoms.
- INSPECT BATTERY VOLTAGE
- Measure the battery voltage.
Standard voltage
11 to 14 V
HINT:
- A simple method to determine whether the battery is discharged is to operate the horn.
- If the voltage is below 11 V, recharge or replace the battery before proceeding.
- Check the fuses and relays.
- Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
Result
Proceed to NEXT
Result:
NEXT
See step 4
- Measure the battery voltage.
- CHECK CAN COMMUNICATION SYSTEM*
- Using the GTS, 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.
Refer to DIAGNOSIS SYSTEM [12/2021 - ]
- The airbag ECU assembly 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.
Result
Proceed to OK NG - Refer to CAN Bus Check in CAN Communication System.
Result:
NG
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ]
Result:
OK
See step 5
- Using the GTS, check that the CAN communication system is functioning normally.
- CHECK PASSENGER AIRBAG ON/OFF INDICATOR
- Refer to Operation Check.
Refer to OPERATION CHECK [12/2021 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 6
- Refer to Operation Check.
- CHECK DTC*
- Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
HINT:
Record or print DTCs if necessary.
Result
Result Proceed to No DTCs are output A Airbag system DTCs are output B Occupant classification system DTCs are output C
Result:
A
GO TO PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ]
Result:
B
GO TO AIRBAG SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ]
Result:
C
See step 7
- Check for DTCs.
- CLEAR DTC* NOTE:
Make sure to record any output Freeze Frame Data and Vehicle Control History (RoB) codes before clearing them and checking for DTCs again.
Result:
NEXT
See step 8
- CHECK DTC*
- Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
HINT:
Record or print DTCs if necessary.
OK
DTCs are not output.
Result
Proceed to OK NG
Result:
NG
GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ]
Result:
OK
See step 9
- Check for DTCs.
- CHECK FOR VEHICLE CONTROL HISTORY*
- Check for vehicle control history.
Body Electrical > SRS Airbag > Utility
Tester Display Vehicle Control History (RoB) Result
Result Proceed to Vehicle control history is not output A Vehicle control history is output B
Result:
A
GO TO PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ]
Result:
B
See step 10
- Check for vehicle control history.
- CLEAR VEHICLE CONTROL HISTORY* NOTE:
Make sure to record any output Freeze Frame Data and Vehicle Control History (RoB) codes before clearing them and checking for DTCs again.
- Clear the vehicle control history.
Body Electrical > SRS Airbag > Utility
Tester Display Vehicle Control History Result
Proceed to NEXT
Result:
NEXT
See step 11
- Clear the vehicle control history.
- CHECK FOR VEHICLE CONTROL HISTORY*
- Check for vehicle control history.
Body Electrical > SRS Airbag > Utility
Tester Display Vehicle Control History Result
Result Proceed to Vehicle control history is not output A Vehicle control history is output B
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ]
Result:
B
GO TO VEHICLE CONTROL HISTORY (RoB). Refer to VEHICLE CONTROL HISTORY (RoB) [12/2021 - ]
- Check for vehicle control history.