How To Proceed With Troubleshooting [09/2022 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

   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 [09/2022 - ] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [09/2022 - ] 

   Chassis > Brake Booster > Trouble Codes 

   Chassis > Brake/EPB > Trouble Codes 

2. Clear the DTCs and Freeze Frame Data.

   for DTC Check / Clear: Refer to DTC CHECK / CLEAR [09/2022 - ] 

   for Freeze Frame Data: Refer to FREEZE FRAME DATA [09/2022 - ] 

   Chassis > Brake Booster > Clear DTCs 

   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 [09/2022 - ] 

      for Freeze Frame Data: Refer to FREEZE FRAME DATA [09/2022 - ] 

      Chassis > Brake Booster > Trouble Codes 

      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 [09/2022 - ]

      • If DTCs related to momentary interruptions are output, perform troubleshooting for those DTCs first.

        Refer to DATA LIST / ACTIVE TEST [09/2022 - ] 

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

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - ]

      • If there is no response from the electric brake booster (brake booster with master cylinder assembly) or skid control ECU (brake actuator assembly), inspect the supply power circuit.

        Refer to TERMINALS OF ECU [09/2022 - ] 

4. Check the Vehicle Control History (RoB).

   Refer to VEHICLE CONTROL HISTORY (RoB) [09/2022 - 11/2022] , or refer to VEHICLE CONTROL HISTORY (RoB) [11/2022 - ]

   Chassis > Brake Booster > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Chassis > Brake/EPB > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Chassis > Steering Angle Sensor > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Result

   Result	Proceed to
   DTCs are not output. (Problem symptom occurs.)	A
   DTCs are output.	B
   DTCs are not output. (Problem symptom does not occur.)	C
   DTCs are not output. (Vehicle control history (RoB) is stored.)	D

Result: 

A 

CONFIRM PROBLEM SYMPTOMS. Refer to  PROBLEM SYMPTOMS TABLE [09/2022 - ]  

Result: 

B 

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS* 

Result: 

C 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

D 

PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY (RoB)* 

Refer to VEHICLE CONTROL HISTORY (RoB) [09/2022 - 11/2022] , or refer to VEHICLE CONTROL HISTORY (RoB) [11/2022 - ]