Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000029CK7
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the blind spot monitor system.
  • *: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CUSTOMER PROBLEM ANALYSIS

HINT:

If there are any scratches or impact marks on the rear bumper, perform the blind spot monitor beam axis confirmation. If any abnormalities are found, perform the blind spot monitor sensor installation condition inspection.

NEXT

3.

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

NEXT

4.

CHECK CAN COMMUNICATION SYSTEM*

(a) Use the GTS to check if the CAN communication system is functioning normally.

  • for Gasoline Model: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 03/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2023 MY Corolla Corolla Hatchback GR Corolla [03/2023 - 08/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM
  • for HV Model: Click here 2023 - 2025 MY Corolla Corolla HV [11/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM

Result

Proceed to

CAN communication system DTCs are not output

A

CAN communication system DTCs are output (for Gasoline Model)

B

CAN communication system DTCs are output (for HV Model)

C
B

GO TO CAN COMMUNICATION SYSTEM 2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 03/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2023 MY Corolla Corolla Hatchback GR Corolla [03/2023 - 08/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM

C

GO TO CAN COMMUNICATION SYSTEM

A

5.

CHECK FOR DTC AND FREEZE FRAME DATA*

(a) Refer to DTC Check / Clear for the blind spot monitor system.

Body Electrical > Blind Spot Monitor "B" > Trouble Codes

Body Electrical > Blind Spot Monitor "A" > Trouble Codes

(b) Record or print DTCs and freeze frame data, if necessary.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): FREEZE FRAME DATA

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

6.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): PROBLEM SYMPTOMS TABLE

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B

HINT:

If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.

Click here

B

GO TO PROBLEM SYMPTOMS TABLE

A

7.

PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM*

(a) Refer to Terminals of ECU.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): TERMINALS OF ECU

(b) Refer to Diagnosis System.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): DIAGNOSIS SYSTEM

(c) Refer to Data List / Active Test.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): DATA LIST / ACTIVE TEST

NEXT

8.

ADJUST, REPAIR OR REPLACE

Result

Proceed to

When adjusting or repairing

A

When replacing

B
B

GO TO STEP 10

A

9.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Blind Spot Monitor "B" > Clear DTCs

Body Electrical > Blind Spot Monitor "A" > Clear DTCs

NEXT

GO TO STEP 10

10.

PERFORM BEAM AXIS CONFIRMATION

(a) Confirm the blind spot monitor beam axis display and perform the blind spot monitor beam axis adjustment.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT

NEXT

11.

PERFORM CONFIRMATION TEST*
NEXT

END