Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GLO5
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 -           ]
Title: 2ZR-FXE (BATTERY / CHARGING): CHARGING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CONFIRM PROBLEM SYMPTOMS
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3.

CUSTOMER PROBLEM ANALYSIS

(a) Check if the vehicle has been jump started due to a discharged auxiliary battery.

Result

Proceed to

The vehicle has never been jump started.

A

The vehicle has been jump started due to a discharged auxiliary battery.

B
B

GO TO ON-VEHICLE INSPECTION / CHECK AUXILIARY BATTERY VOLTAGE 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+ 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

A

4.

CAN COMMUNICATION SYSTEM CHECK

(a) Using the Techstream, display the CAN Bus Check screen and check that all ECUs and sensors that are connected to the CAN communication system are displayed on the screen.

NG

GO TO CAN COMMUNICATION SYSTEM 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

OK

5.

CHECK FOR DTCS

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B
B

GO TO DTC CHART
A

6.

ON-VEHICLE INSPECTION

Result

Proceed to

Malfunctioning area has not been determined.

A

Malfunctioning area has been determined.

B
B

GO TO STEP 8

A

7.

CHECK FOR INTERMITTENT PROBLEMS
NEXT

8.

REPAIR OR REPLACE
NEXT

END