How To Proceed With Troubleshooting [04/2020 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Confirm problem symptoms.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Measure the auxiliary battery voltage with the power switch off.

   Standard voltage

   11 to 14 V

   HINT: 

   • A simple method to determine whether the auxiliary battery is discharged is to operate the horn.
   • If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.
2. Check the fuses and relays.
3. 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

1. Using the Techstream, check if the CAN communication system is functioning normally.

   OK

   CAN communication system is functioning normally.

   HINT: 

   • Refer to Communication Bus Check in CAN Communication System.

     Refer to DIAGNOSIS SYSTEM [04/2020 - 11/2021] , or refer to DIAGNOSIS SYSTEM [11/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 05/2023] , or refer to DIAGNOSIS SYSTEM [05/2023 - ]

   • 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

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ] 

Result: 

OK 

See step  5

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [04/2020 - ] 

   Body Electrical > Pedestrian Protection > Trouble Codes 

   Body Electrical > SRS Airbag > Trouble Codes 

   Result

   Result	Proceed to
   Pedestrian protection system DTC is output	A
   Airbag system DTC is output	B
   DTC is not output	C

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [04/2020 - 05/2023]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2023 - ] 

Result: 

C 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [04/2020 - ]  

Result: 

A 

See step  6

1. Diagnostic Trouble Code Chart.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [04/2020 - 05/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [05/2023 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [04/2020 - ] 

   Body Electrical > Pedestrian Protection > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [04/2020 - ] 

   Body Electrical > Pedestrian Protection > Trouble Codes 

   Result

   Result	Proceed to
   DTC is output	A
   DTC is not output	B

Result: 

B 

PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [04/2020 - ]  

Result: 

A 

See step  9

Result

Result: 

NEXT 

See step  10

Result

Result: 

NEXT 

See step  11

Result

Result: 

NEXT 

END