Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

HINT:

  • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
  • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
  • The following 5 items are important points for problem analysis:

    What

    Vehicle model, system name

    When

    Date, time, occurrence frequency

    Where

    Road conditions

    Under what conditions?

    Running conditions, driving conditions, weather conditions

    How did it happen?

    Problem symptoms

NEXT

3.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

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

NEXT

4.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Check if CAN communication DTCs are output.

Click here

Result

Proceed to

CAN communication DTCs are not output.

A

CAN communication DTCs are output.

B

B

GO TO CAN COMMUNICATION SYSTEM

A

5.

CHECK FOR DTC*

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

B

GO TO DTC CHART

A

6.

CHECK FOR VEHICLE CONTROL HISTORY (RoB)*

HINT:

Refer to Vehicle Control History (RoB).

Click here

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.

REFER TO PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Malfunctioning parts are not confirmed.

A

Malfunctioning parts are confirmed.

B

B

GO TO STEP 13

A

8.

OVERALL ANALYSIS AND TROUBLESHOOTING*

HINT:

Refer to Data List / Active Test.

Click here

Result

Proceed to

Malfunctioning parts are not confirmed.

A

Malfunctioning parts are confirmed.

B

B

GO TO STEP 13

A

9.

CHECK ECM CIRCUIT

HINT:

Refer to Terminals of ECM.

Click here

NG

GO TO STEP 13

OK

10.

CHECK FOR INTERMITTENT PROBLEMS

HINT:

Refer to Symptom Simulation.

Click here

NEXT

11.

CONDUCT PARTS INSPECTION

NEXT

12.

IDENTIFY PROBLEM

NEXT

13.

ADJUST AND/OR REPAIR

NEXT

14.

CONDUCT CONFIRMATION TEST

NEXT

END

    READ NEXT:

     Problem Symptoms Table

    PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in

     Terminals Of Ecm

    TERMINALS OF ECM HINT: The standard normal voltage and resistance between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals

     Diagnosis System

    DIAGNOSIS SYSTEM DLC3 (Data Link Connector 3) (a) Check the DLC3. Click here BATTERY VOLTAGE Standard Voltage: 11 to 14 V If the voltage is below 11 V, replace or recharge the battery.

    SEE MORE:

     Parts Location

    PARTS LOCATION ILLUSTRATION *1 HEADLIGHT UNIT ASSEMBLY LH *2 HEADLIGHT UNIT ASSEMBLY RH *3 SIDE TURN SIGNAL LIGHT ASSEMBLY LH *4 SIDE TURN SIGNAL LIGHT ASSEMBLY RH *5 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *6 FORWARD RECOGNITION CAMERA *7 OUTER

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 VACUUM PUMP ASSEMBLY 29300 - - *1 NO. 1 VACUUM PUMP

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