How To Proceed With Troubleshooting [05/2019 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the trouble.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ]

   Result

   Result
   NEXT

Result: 

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See step  3

1. Check and record DTC and Freeze Frame Data.

   Refer to DTC CHECK / CLEAR [05/2019 - ]  for DTC Check/Clear

   Refer to FREEZE FRAME DATA [05/2019 - ]  for Freeze Frame Data

2. Clear the DTC and Freeze Frame Data.

   Refer to DTC CHECK / CLEAR [05/2019 - ]  for DTC Check/Clear

   Refer to FREEZE FRAME DATA [05/2019 - ]  for Freeze Frame Data

   Chassis > Brake > Clear DTCs 

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

      Refer to DTC CHECK / CLEAR [05/2019 - ]  for DTC Check/Clear

      Refer to FREEZE FRAME DATA [05/2019 - ]  for Freeze Frame Data

      Chassis > Brake > Trouble Codes 

      HINT: 

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

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - ]

      • If DTC U0100-87, U0125-87 or U0126-87 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit.

        Refer to CHECK FOR INTERMITTENT PROBLEMS [05/2019 - ] 

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

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - ]

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

        for C137B-A2: Refer to DTC C137B-A2: Brake System Control Module "A" System Voltage System Voltage Low [05/2019 - ]

        for C137B-A3: Refer to DTC C137B-A3: Brake System Control Module "A" System Voltage System Voltage High [05/2019 - ]

      Result

      Proceed to
      DTC is output
      DTC is not output (Problem symptom does not occur)
      DTC is not output (Problem symptom occurs)

Result: 

DTC is not output (Problem symptom does not occur) 

See step  5

Result: 

DTC is not output (Problem symptom occurs) 

See step  6

Result: 

DTC is output 

See step  4

1. Proceed to Diagnostic Trouble Code Chart.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [05/2019 - ] 

   Result

   Result
   NEXT

Result: 

NEXT 

See step  7

1. Proceed to Check for Intermittent Problems.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ]

   Result

   Result
   NEXT

Result: 

NEXT 

See step  6

1. Proceed to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [05/2019 - ] 

   Result

   Result
   NEXT

Result: 

NEXT 

See step  7

Result

Result: 

NEXT 

See step  8

Result

Result: 

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See step  9

Result

Result: 

NEXT 

See step  10

Result

Result: 

NEXT 

END