Toyota CH-R Service Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the safety connect system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

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 analysis:

    What

    Vehicle model, system name

    When

    Date, time, occurrence frequency

    Where

    Road conditions

    Under what conditions?

    Driving conditions, weather conditions

    How did it happen?

    Problem symptoms

NEXT

3.

PRE-CHECK

(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.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

NEXT

4.

VERIFY CUSTOMER SUBSCRIPTION IS ACTIVE*

(a) Enter the VIN into Vehicle Inquiry on the Techstream and verify the subscription type and expiration date.

NEXT

5.

PERFORM HEALTH CHECK*

(a) Perform "Health Check" and check for current DTCs.

Click here

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

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 reoccur and no DTC is output, attempt to reproduce the symptoms.

Click here

B

GO TO STEP 8

A

7.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU

Click here

(b) Data List / Active Test

Click here

NEXT

8.

REPAIR OR REPLACE

(a) Check if the DCM (Telematics Transceiver) has been replaced.

Result

Proceed to

The DCM (Telematics Transceiver) has been replaced

A

The DCM (Telematics Transceiver) has not been replaced

B

B

GO TO STEP 10

A

9.

PERFORM DCM ACTIVATION

(a) Perform "DCM ACTIVATION".

Click here

NEXT

10.

CONFIRMATION TEST

NEXT

END

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