Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: How To Proceed With Troubleshooting

Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Support Brake System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the parking support brake system.
  • *: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CUSTOMER PROBLEM ANALYSIS
NEXT

3.

INSPECT AUXILIARY BATTERY

(a) Measure the auxiliary battery voltage.

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 HEV Model:

    Click here

  • for Gasoline Model:

    Click here

Result

Proceed to

CAN communication system DTCs are not output

A

CAN communication system DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

  • for HEV Model:

    Click here

  • for Gasoline Model:

    Click here

A

5.

CHECK BLIND SPOT MONITOR SYSTEM*

(a) Use the GTS to check if the blind spot monitor system is functioning normally.

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO BLIND SPOT MONITOR SYSTEM

A

6.

PROBLEM SYMPTOM CONFIRMATION
NEXT

7.

CHECK FOR DTC*

(a) Check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

(b) Clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result

Proceed to

DTCs are output

A

DTCs are not output

B
B

GO TO STEP 9

A

8.

DIAGNOSTIC TROUBLE CODE CHART (PARKING SUPPORT BRAKE SYSTEM)

(a) Refer to Diagnostic Trouble Code Chart.

Click here

NOTICE:

The clearance warning ECU assembly outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the parking support brake system are output, refer to Diagnostic Trouble Code Chart for the relevant systems.

System

Proceed to

Intuitive Parking Assist System

NEXT

GO TO STEP 13

9.

CHECK FOR VEHICLE CONTROL HISTORY (RoB)*

HINT:

Refer to Vehicle Control History (RoB).

Click here

(a) Check for vehicle control history (RoB) and note any codes that are output.

Body Electrical > Clearance Warning > Utility

Tester Display

Vehicle Control History (RoB)

Result

Proceed to

No vehicle control history (RoB) is output (Problem symptom does not occur)

A

No vehicle control history (RoB) is output (Problem symptom occurs)

B

X20C0 or X20C1 is output

C

Any vehicle control history (RoB) other than X20C0 and X20C1 is output

D
B

GO TO STEP 11

C

GO TO CALIBRATION

D

GO TO VEHICLE CONTROL HISTORY

A

10.

SYMPTOM SIMULATION

(a) Refer to Symptom Simulation.

Click here

NEXT

11.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B
B

GO TO STEP 13

A

12.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here

(b) Terminals of ECU

Click here

(c) Data List / Active Test

Click here

NEXT

13.

CIRCUIT INSPECTION
NEXT

14.

IDENTIFICATION OF PROBLEM
NEXT

15.

REPAIR OR REPLACE
NEXT

16.

CONFIRMATION TEST
NEXT

END

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