CAUTION / NOTICE / HINT
Tech Tips
Use the following procedure to troubleshoot the air conditioning system.
*: Use the GTS.
PROCEDURE
VEHICLE BROUGHT TO WORKSHOP
Result | ||
---|---|---|
|
NEXT |
INSPECT BATTERY VOLTAGE
Inspect 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.
Result | ||
---|---|---|
|
NEXT |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
Use the GTS to check if the CAN communication system is functioning normally.
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
B |
GO TO CAN COMMUNICATION SYSTEM Click here |
C |
GO TO CAN COMMUNICATION SYSTEM Click here |
A |
CHECK FOR DTC*
Check for DTCs and note any code that is output.
Clear the DTCs.
Recheck for DTCs. Based on the DTCs output above, try to force the A/C system to output DTCs by simulating the conditions indicated by the DTC.
Result | ||||||
---|---|---|---|---|---|---|
|
B |
PROBLEM SYMPTOMS TABLE Click here |
A |
DIAGNOSTIC TROUBLE CODE CHART
Find the output DTCs in Diagnostic Trouble Code Chart Click here.
Result | ||
---|---|---|
|
NEXT |
GO TO STEP 8 Click here |
PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table Click here.
Result | ||||||
---|---|---|---|---|---|---|
|
B |
GO TO STEP 8 Click here |
A |
OVERALL ANALYSIS AND TROUBLESHOOTING*
Panel diagnosis (indicator check, sensor check) Click here
Data List / Active Test Click here
Terminals of ECU Click here
On-vehicle Inspection
Inspection
Result | ||
---|---|---|
|
NEXT |
ADJUST, REPAIR OR REPLACE
Result | ||
---|---|---|
|
NEXT |
END |