Toyota Yaris: 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 |
|
| 2. | CUSTOMER PROBLEM ANALYSIS |
HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
-
The following 5 items are important points for problem analysis:
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
|
| 3. | INSPECT AUXILIARY BATTERY VOLTAGE |
(a) Measure the auxiliary battery voltage with the 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.
|
| 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 |
|
| 5. | CHECK COMMUNICATION FUNCTION OF CXPI COMMUNICATION SYSTEM* |
(a) Using the GTS, check for CXPI communication system DTCs.
Click here
| Result | Proceed to |
|---|---|
| CXPI communication system DTCs are not output | A |
| CXPI communication system DTCs are output | B |
| B |
 | GO TO CXPI COMMUNICATION SYSTEM |
|
| 6. | CHECK POWER INTEGRATION SYSTEM* |
(a) Using the GTS, check for power integration system DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B |
 | GO TO POWER INTEGRATION SYSTEM |
|
| 7. | 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) |
|
| 8. | 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 |
|
| 9. | 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 |
|
| 10. | 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 |
|
| 11. | 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 |
|
| 12. | 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 |
|
| 13. | 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 |
|
| 14. | 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 |
|
| 15. | USE SIMULATION METHOD TO CHECK |
Click here
|
| 16. | CONFIRMATION TEST |
| NEXT |
 | END |
System Diagram
S..
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE AIR CONDITIONING SYSTEM (a) Customizing with the GTS. NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Utility
UTILITY REFRIGERANT SHORTAGE CHECK USING GTS (a) Check that the following conditions are met and perform the refrigerant shortage check according to the display on the GTS. Measurement Condition: Item Condition A/C switch On Ambient temperature*1 0 to 49°C (32 to 120°F) Blower speed HI *1: If the ambient temperature is not within the range shown, do not perform this check...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Before Starting Target Adjustment
BEFORE STARTING TARGET ADJUSTMENT CAUTION / NOTICE / HINT NOTICE: When replacing the windshield glass of a vehicle equipped with a forward recognition camera, make sure to use a Toyota genuine part. If a non-Toyota genuine part is used, the forward recognition camera may not be able to be installed due to a missing bracket or the pre-collision system may not operate properly due to a difference in the transmissivity of the windshield glass or the shape of the black ceramic border...
Categories
- Manuals Home
- Toyota Yaris Owners Manual
- Toyota Yaris Service Manual
- Brake System Control Module "A" System Voltage System Voltage Low (C137BA2)
- Low Engine Coolant Temperature Indicator Light (Blue)
- Key Battery Replacement
- New on site
- Most important about car
Liftgate/Trunk Lid
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
