How To Proceed With Troubleshooting [10/2017 - 10/2020]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 09/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 10/2020]

   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 [10/2017 - 09/2018] , or refer to DTC CHECK / CLEAR [09/2018 - 10/2020] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [10/2017 - 10/2020] 

   Chassis > ABS/VSC/TRAC > Trouble Codes 

2. Clear the DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [10/2017 - 09/2018] , or refer to DTC CHECK / CLEAR [09/2018 - 10/2020] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [10/2017 - 10/2020] 

   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 [10/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020]

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

        Refer to CHECK FOR INTERMITTENT PROBLEMS [10/2017 - 10/2020] 

      • If the Techstream cannot communicate with the skid control ECU assembly, inspect the CAN communication system.

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020]

      • If there is no response from the skid control ECU assembly, inspect the IG1 circuit of the skid control ECU assembly.

        Refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [10/2017 - 09/2018] , or refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [09/2018 - 09/2019] , or refer to DTC C1241: Low or High Power Supply Voltage; DTC C1242: Open Circuit in IG1/IG2 Power Source Circuit [09/2019 - 10/2020]

   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 [10/2017 - 09/2018] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2018 - 09/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 10/2020] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Proceed to How to Proceed with Troubleshooting.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 09/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 10/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Proceed to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [10/2017 - 10/2020] 

   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

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2017 - 09/2018] , or refer to DTC CHECK / CLEAR [09/2018 - 10/2020] 

   Chassis > ABS/VSC/TRAC > Clear DTCs 

2. Check if the same DTCs are output.

   Refer to DTC CHECK / CLEAR [10/2017 - 09/2018] , or refer to DTC CHECK / CLEAR [09/2018 - 10/2020] 

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

Result: 

B 

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - 09/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2018 - 09/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 10/2020]  

Result: 

A 

See step  11

Result

Result: 

NEXT 

END