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

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the air conditioning system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

INSPECT BATTERY VOLTAGE

(a) Inspect the battery voltage with the ignition switch off.

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

3.

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for CAN communication system DTCs.

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

A

4.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output.

Click here

Body Electrical > Air Conditioner > Trouble Codes

(b) Clear the DTCs.

Click here

Body Electrical > Air Conditioner > Clear DTCs

(c) Recheck for DTCs. Based on the DTCs output above, try to force output of the air conditioning system DTC by simulating the operation indicated by the DTC.

Click here

Body Electrical > Air Conditioner > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

5.

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 PROBLEM SYMPTOMS TABLE

A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test.

Click here

(b) Terminals of ECU.

Click here

(c) On-vehicle Inspection.

(d) Inspection.

NEXT

7.

ADJUST, REPAIR OR REPLACE

NEXT

END

    System Diagram
    SYSTEM DIAGRAM Communication Table Sender Receiver Signal Communication Line Air conditioning amplifier assembly ECM ...

    System Description
    SYSTEM DESCRIPTION GENERAL The air conditioning system has the following controls. Control Outline Neural Network Control This control is capable o ...

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