RM3090E _58 Vehicle Interior _008789 HEATING / AIR CONDITIONING _0049188 AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System) Y

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)  HOW TO PROCEED WITH TROUBLESHOOTING  


CAUTION / NOTICE / HINT

HINT:
·

Use the following procedure to troubleshoot the air conditioning system.

·

*: Use the GTS.



PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
Proceed to
NEXT



NEXT

2.INSPECT BATTERY VOLTAGE
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.


Result:
Proceed to
NEXT



NEXT

3.CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
3.CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
a.

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 not output

4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

LIN DTC is output

GO TO LIN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>LIN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
a.

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 not output

5.CHECK FOR DTC*

CAN DTC is output

GO TO CAN COMMUNICATION SYSTEM

for LHD:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM(for LHD)>HOW TO PROCEED WITH TROUBLESHOOTING

for RHD:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM(for RHD)>HOW TO PROCEED WITH TROUBLESHOOTING


5.CHECK FOR DTC*
a.

Check for DTCs and note any codes that are output.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Trouble Codes
50001 121

b.

Clear the DTCs.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Clear DTCs
50002 121

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 hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Trouble Codes
50001 121

Result:
Proceed to
DTC is not output
DTC is output



DTC is not output

6.PROBLEM SYMPTOMS TABLE

DTC is output

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>DIAGNOSTIC TROUBLE CODE CHART


6.PROBLEM SYMPTOMS TABLE
a.

Refer to Problem Symptoms Table.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>PROBLEM SYMPTOMS TABLE


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



Fault is not listed in Problem Symptoms Table

7.OVERALL ANALYSIS AND TROUBLESHOOTING*

Fault is listed in Problem Symptoms Table

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

7.OVERALL ANALYSIS AND TROUBLESHOOTING*
a.

Panel diagnosis (indicator check, sensor check)


b.

Data List / Active Test.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>DATA LIST / ACTIVE TEST


c.

Terminals of ECU.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)>TERMINALS OF ECU


d.

On-vehicle Inspection


e.

Inspection


Result:
Proceed to
NEXT



NEXT

8.ADJUST, REPAIR OR REPLACE
8.ADJUST, REPAIR OR REPLACE
Result:
Proceed to
NEXT



NEXT

END