How To Proceed With Troubleshooting [08/2019 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

   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 [08/2019 - ] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [08/2019 - ] 

   Chassis > Brake/EPB > Trouble Codes 

2. Clear the DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [08/2019 - ] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [08/2019 - ] 

   Chassis > Brake/EPB > Clear DTCs 

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

      for DTC Check / Clear: Refer to DTC CHECK / CLEAR [08/2019 - ] 

      for Freeze Frame Data: Refer to FREEZE FRAME DATA [08/2019 - ] 

      Chassis > Brake/EPB > Trouble Codes 

      HINT: 

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

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ]

      • If DTC U0100-87, U0125-87, U0126-87 and/or U0151-87 are among the CAN communication DTCs that are output, first use the Data List to check for a momentary open circuit.

        Refer to CHECK FOR INTERMITTENT PROBLEMS [08/2019 - ] 

      • 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 [09/2015 - ]

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

        C137B-A2: Refer to DTC C137B-A2: Brake System Control Module "A" System Voltage System Voltage Low [08/2019 - ]

        C137B-A3: Refer to DTC C137B-A3: Brake System Control Module "A" System Voltage System Voltage High [08/2019 - ]

   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 [08/2019 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Proceed to How to Proceed with Troubleshooting.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Proceed to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [08/2019 - ] 

   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 [08/2019 - ] 

   Chassis > Brake/EPB > Clear DTCs 

2. Check if the same DTCs are output.

   Refer to DTC CHECK / CLEAR [08/2019 - ] 

   Chassis > Brake/EPB > 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 [08/2019 - ]  

Result: 

A 

See step  11

Result

Result: 

NEXT 

END