AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)

DTC Code	DTC Name
	HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tip:

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

PROCEDURE

VEHICLE BROUGHT TO WORKSHOP

Result


Proceed to
NEXT

INSPECT BATTERY VOLTAGE

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.

Result


Proceed to
NEXT

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

Use the GTS to check if the LIN communication system is functioning normally.

Result


Proceed to
LIN DTC is not output
LIN DTC is output

LIN DTC is output

GO TO LIN COMMUNICATION SYSTEM

Click here

LIN DTC is not output

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

Use the GTS to check if the CAN communication system is functioning normally.

Result


Proceed to
CAN DTC is not output
CAN DTC is output

CAN DTC is output

GO TO CAN COMMUNICATION SYSTEM

for LHD:

Click here

for RHD:

Click here

CAN DTC is not output

CHECK FOR DTC*

Check for DTCs and note any codes that are output.
Click here

Body Electrical > Air Conditioner > Trouble Codes
Clear the DTCs.
Click here

Body Electrical > Air Conditioner > Clear DTCs
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
DTC is not output
DTC is output

DTC is output

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click here

DTC is not output

PROBLEM SYMPTOMS TABLE

Refer to Problem Symptoms Table.
Click here

Result


Proceed to
Fault is not listed in Problem Symptoms Table
Fault is listed in Problem Symptoms Table

Fault is listed in Problem Symptoms Table

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

Fault is not listed in Problem Symptoms Table

OVERALL ANALYSIS AND TROUBLESHOOTING*

Panel diagnosis (indicator check, sensor check)
Data List / Active Test.
Click here
Terminals of ECU.
Click here
On-vehicle Inspection
Inspection

Result


Proceed to
NEXT

ADJUST, REPAIR OR REPLACE

Result


Proceed to
NEXT

END