CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
HINT:
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 |
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3. |
INSPECT AUXILIARY BATTERY VOLTAGE |
(a) Inspect the auxiliary battery voltage with ignition switch off.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary 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.
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4. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the GTS, 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 |
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5. |
CHECK VEHICLE CONTROL HISTORY (RoB)* |
(a) Using the GTS, check for vehicle control history (RoB).
Body Electrical > Air Conditioner > Utility
Tester Display |
---|
Vehicle Control History (RoB) |
(b) Record the vehicle control history.
Result | Proceed to |
---|---|
Vehicle control history is not output |
A |
Vehicle control history is output |
B |
B | GO TO VEHICLE CONTROL HISTORY (RoB) |
|
6. |
CHECK FOR DTC* |
(a) Check for DTCs and note any codes that are output.
Body Electrical > Air Conditioner > Trouble Codes(b) Clear the DTCs.
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.
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 |
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7. |
CHECK AIR CONDITIONING CONTROL ASSEMBLY |
(a) Operate each switch on the air conditioning control assembly and check that the switches of the air conditioning system operate normally.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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8. |
CHECK BLOWER CONTROL |
(a) Operate the blower switch on the air conditioning control assembly and check that the blower control operates normally.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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9. |
CHECK AIR INLET CONTROL |
(a) Operate the recirculation/fresh switch on the air conditioning control assembly and check that the air inlet control operates normally.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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10. |
CHECK AIR OUTLET CONTROL |
(a) Operate the air outlet mode switch on the air conditioning control assembly and check that the air outlet control operates normally.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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11. |
CHECK COOLING FUNCTION |
(a) Operate the temperature adjustment switches on the air conditioning control assembly and check that cool air is blown from the registers.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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12. |
CHECK HEATER FUNCTION |
(a) Operate the temperature adjustment switches on the air conditioning control assembly and check that warm air is blown from the air registers.
NG | GO TO PROBLEM SYMPTOMS TABLE |
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13. |
USE SIMULATION METHOD TO CHECK |
Click here
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14. |
CONFIRMATION TEST |
NEXT | END |