How To Proceed With Troubleshooting [11/2018 - 12/2021]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Check and record DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [11/2018 - 02/2019] , or refer to DTC CHECK / CLEAR [02/2019 - 12/2021] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [11/2018 - 02/2019] , or refer to FREEZE FRAME DATA [02/2019 - 12/2021] 

   Chassis > ABS/VSC/TRAC > Trouble Codes 

2. Clear the DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [11/2018 - 02/2019] , or refer to DTC CHECK / CLEAR [02/2019 - 12/2021] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [11/2018 - 02/2019] , or refer to FREEZE FRAME DATA [02/2019 - 12/2021] 

   Chassis > ABS/VSC/TRAC > Clear DTCs 

3. Reconfirm the DTCs.
   1. Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      HINT: 

      • When CAN communication system DTCs are output, repair the CAN communication system first.

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]

      • If DTCs U0123, U0124, U0126, U0293, and/or U0151 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit.

        Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2018 - 02/2019] , or refer to CHECK FOR INTERMITTENT PROBLEMS [02/2019 - 12/2021] 

      • If the Techstream cannot communicate with the skid control ECU (brake booster with master cylinder assembly), inspect the CAN communication system.

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]

      • If there is no response from the skid control ECU (brake booster with master cylinder assembly), inspect the IG1 circuit of the skid control ECU (brake booster with master cylinder assembly).

        Refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [11/2018 - 02/2019] , or refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [02/2019 - 06/2020] , or refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [06/2020 - 08/2020] , or refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [08/2020 - 12/2021]

   Result

   Result	Proceed to
   DTCs are output.	A
   DTCs are not output. (Problem symptom does not occur.)	B
   DTCs are not output. (Problem symptom occurs.)	C

Result: 

B 

See step  5

Result: 

C 

See step  6

Result: 

A 

See step  4

1. Proceed to Diagnostic Trouble Code Chart.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2018 - 02/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [02/2019 - 10/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2019 - 06/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [06/2020 - 08/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 12/2021]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Proceed to How to Proceed with Troubleshooting.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Proceed to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 12/2021] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

Result

Result: 

NEXT 

See step  8

Result

Result: 

NEXT 

See step  9

Result

Result: 

NEXT 

See step  10

Result

Result: 

NEXT 

END