| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM1000000025DSH |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
*: Use the GTS.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer and confirm the problem.
Click here
![2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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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 here
for Freeze Frame Data: Click here
Chassis > Brake Booster > Trouble Codes
Chassis > Brake/EPB > Trouble Codes
(b) Clear the DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
Chassis > Brake Booster > Clear DTCs
Chassis > Brake/EPB > Clear DTCs
(c) Reconfirm the DTCs.
(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
Chassis > Brake Booster > Trouble Codes
Chassis > Brake/EPB > Trouble Codes
HINT:
-
When CAN communication system DTCs are output, repair the CAN communication system first.
Click here
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If DTCs related to momentary interruptions are output, perform troubleshooting for those DTCs first.
Click here
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If the GTS cannot communicate with the skid control ECU, inspect the CAN communication system.
Click here
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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 here
(d) Check the Vehicle Control History (RoB).
Click here
Chassis > Brake Booster > Utility
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Tester Display |
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Vehicle Control History (RoB) |
Chassis > Brake/EPB > Utility
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Tester Display |
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Vehicle Control History (RoB) |
Chassis > Steering Angle Sensor > Utility
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Tester Display |
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Vehicle Control History (RoB) |
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Result |
Proceed to |
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DTCs are not output. (Problem symptom occurs.) |
A |
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DTCs are output. |
B |
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DTCs are not output. (Problem symptom does not occur.) |
C |
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DTCs are not output. (Vehicle control history (RoB) is stored.) |
D |
| A |
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| B |
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REPAIR CIRCUITS INDICATED BY OUTPUT DTCS* |
| C |
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| D |
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PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY (RoB)* Click here
NOTICE: After performing troubleshooting and repair regarding vehicle control history (RoB), clear the vehicle control history (RoB). |
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