Toyota Corolla Cross: 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

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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.

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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.

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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 FOR DTC AND FREEZE FRAME DATA*

(a) Check for DTCs.

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

(b) Recheck for DTCs.

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

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

Result	Proceed to
DTCs are not output.	A
DTCs are output.	B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

6.	CHECK VEHICLE CONTROL HISTORY (RoB)*

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

Body Electrical > Blind Spot Monitor "B" > Utility

Tester Display
Vehicle Control History (RoB)

Body Electrical > Blind Spot Monitor "A" > Utility

Tester Display
Vehicle Control History (RoB)

Result	Proceed to
Vehicle control history (RoB) is not output	A
Vehicle control history (RoB) is output	B

B

GO TO VEHICLE CONTROL HISTORY (RoB)

A

7.	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

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

8.	PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM*

(a) Refer to Terminals of ECU.

Click here

(b) Refer to Diagnosis System.

Click here

(c) Refer to Data List / Active Test.

Click here

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9.	ADJUST, REPAIR OR REPLACE

Result	Proceed to
When adjusting or repairing	A
When replacing	B

B

GO TO STEP 11

A

10.

CLEAR DTC

(a) Clear the DTCs.

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

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GO TO STEP 11

11.	PERFORM BEAM AXIS CONFIRMATION*

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

Click here

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12.	PERFORM CONFIRMATION TEST

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END

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