RM38T0EC _54 Brake _112606 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0608077 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model) Y

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model)  HOW TO PROCEED WITH TROUBLESHOOTING  


CAUTION / NOTICE / HINT

HINT:

*: Use the GTS.


PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
Proceed to
NEXT



NEXT

2.CUSTOMER PROBLEM ANALYSIS
2.CUSTOMER PROBLEM ANALYSIS
a.

Interview the customer and confirm the problem.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


Result:
Proceed to
NEXT



NEXT

3.CHECK DTC, FREEZE FRAME DATA AND VEHICLE CONTROL HISTORY (RoB)*
3.CHECK DTC, FREEZE FRAME DATA AND VEHICLE CONTROL HISTORY (RoB)*
a.

Check and record DTCs and Freeze Frame Data.

for DTC Check / Clear: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>DTC CHECK / CLEAR

for Freeze Frame Data: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>FREEZE FRAME DATA

Chassis > Brake Booster > Trouble Codes
50001 466
Chassis > Brake/EPB > Trouble Codes
50001 435

b.

Clear the DTCs and Freeze Frame Data.

for DTC Check / Clear: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>DTC CHECK / CLEAR

for Freeze Frame Data: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>FREEZE FRAME DATA

Chassis > Brake Booster > Clear DTCs
50002 466
Chassis > Brake/EPB > Clear DTCs
50002 435

c.

Reconfirm the DTCs.

i.

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

for DTC Check / Clear: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>DTC CHECK / CLEAR

for Freeze Frame Data: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>FREEZE FRAME DATA

Chassis > Brake Booster > Trouble Codes
50001 466
Chassis > Brake/EPB > Trouble Codes
50001 435
HINT:
·

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

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>DATA LIST / ACTIVE TEST

·

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

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>TERMINALS OF ECU





d.

Check the Vehicle Control History (RoB).

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>VEHICLE CONTROL HISTORY (RoB)

Chassis > Brake Booster > Utility
Tester Display
Vehicle Control History (RoB)
50005 466 55
Chassis > Brake/EPB > Utility
Tester Display
Vehicle Control History (RoB)
50005 435 55
Chassis > Steering Angle Sensor > Utility
Tester Display
Vehicle Control History (RoB)
50005 445 55

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



A

CONFIRM PROBLEM SYMPTOMS

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>PROBLEM SYMPTOMS TABLE


B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS*

C

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


D

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

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>VEHICLE CONTROL HISTORY (RoB)

NOTICE:

After performing troubleshooting and repair regarding vehicle control history (RoB), clear the vehicle control history (RoB).