| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001FPGN |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [11/2018 - 02/2019] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING; 2019 MY RAV4 HV [11/2018 - 02/2019] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the air conditioning system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
HINT:
- In troubleshooting, in order to check the problem symptoms accurately and judge correctly, avoid having any preconceptions. 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 malfunctions 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 and time, frequency, whether the problem occurred recently or has been occurring for a long time
Where
Whether the problem occurs at specified place
Under what conditions?
Whether the doors were locked or unlocked, whether the power switch was on (IG), whether the engine was running
How did it happen?
Ask the customer for details about the vehicle operating conditions, environment and malfunction.
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3. |
INSPECT AUXILIARY BATTERY VOLTAGE |
(a) Inspect the auxiliary battery voltage with the power switch off.
Standard voltage:
11 to 14 V
HINT:
A simple method to determine whether the auxiliary battery is depleted is to operate the horn.
If the auxiliary 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.
(d) Using the Techstream, check the Data List item "Operation Limitation Control History Count".
Click here
![2019 MY RAV4 HV [11/2018 - 02/2019]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): DATA LIST / ACTIVE TEST](/t3Portal/stylegraphics/info.gif)
Body Electrical > Air Conditioner > Data List
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Tester Display |
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Operation Limitation Control History Count (Level1) |
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Operation Limitation Control History Count (Level2) |
HINT:
If a value other than zero is displayed for "Operation Limitation Control History Count (Level1)" or "Operation Limitation Control History Count (Level2)", air conditioning system operation may have been limited in the past. If the operation is still limited, the message "High Power Consumption Partial Limit on AC/Heater Operation" will be displayed on the multi-information display in the combination meter assembly. In this case, inspect the charging system.
Click here
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4. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for CAN communication system DTCs.
Click here
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Result |
Proceed to |
|---|---|
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CAN communication system DTCs are not output |
A |
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CAN communication system DTCs are output |
B |
| B |
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5. |
CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for LIN communication system DTCs.
Click here
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Result |
Proceed to |
|---|---|
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LIN communication system DTCs are not output |
A |
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LIN communication system DTCs are output |
B |
| B |
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6. |
CHECK FOR DTC* (HYBRID CONTROL SYSTEM) |
(a) Check for DTCs and note any codes that are output.
Click here
Powertrain > Hybrid Control > Trouble Codes
(b) Clear the DTCs.
Click here
Powertrain > Hybrid Control > 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.
Click here
Powertrain > Hybrid Control > Trouble Codes
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| B |
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7. |
CHECK FOR DTC* |
(a) Check for DTCs and note any codes that are output.
Click here
Body Electrical > Air Conditioner > Trouble Codes
(b) Clear the DTCs.
Click here
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.
Click here
Body Electrical > Air Conditioner > Trouble Codes
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| B |
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8. |
CHECK AIR CONDITIONING CONTROL ASSEMBLY |
(a) Operate each switch on the air conditioning control assembly to check that the air conditioning system operates normally.
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Result |
Proceed to |
|---|---|
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Air conditioning system operates normally |
A |
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Air conditioning system does not operate normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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9. |
CHECK BLOWER FUNCTION |
(a) Operate the blower switch on the air conditioning control assembly to check that the blower function is controlled normally.
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Result |
Proceed to |
|---|---|
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Blower function is controlled normally |
A |
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Blower function is not controlled normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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10. |
CHECK FRESH/RECIRCULATION CONTROL FUNCTION |
(a) Operate the blower switch on the air conditioning control assembly to check that the fresh/recirculation control function is controlled normally.
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Result |
Proceed to |
|---|---|
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Fresh/recirculation control function is controlled normally |
A |
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Fresh/recirculation control function is not controlled normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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11. |
CHECK AIR OUTLET CHANGING FUNCTION |
(a) Operate the MODE switch on the air conditioning control assembly to check that the air outlet changing function is controlled normally.
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Result |
Proceed to |
|---|---|
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Air outlet changing function is controlled normally |
A |
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Air outlet changing function is not controlled normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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12. |
CHECK COOL AIR FUNCTION |
(a) Operate the A/C switch and temperature adjustment switch on the air conditioning control assembly to check that the cooling performance is controlled normally.
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Result |
Proceed to |
|---|---|
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Cooling performance is controlled normally |
A |
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Cooling performance is not controlled normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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13. |
CHECK HEATER FUNCTION |
(a) Operate the A/C switch and temperature adjustment switch on the air conditioning control assembly to check that the heating performance is controlled normally.
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Result |
Proceed to |
|---|---|
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Heating performance is controlled normally |
A |
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Heating performance is not controlled normally |
B |
| B |
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ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH VEHICLE CHECK ITEMS |
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14. |
USE SIMULATION METHOD TO CHECK |
Click here
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15. |
CONFIRMATION TEST |
| NEXT |
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END |
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