HEATING / AIR CONDITIONING: REFRIGERANT (for HFC-134a(R134a)): REPLACEMENT; 2019 - 2020 MY RAV4 RAV4 HV [11/2018

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001FANG
Model Year Start: 2019	Model: RAV4	Prod Date Range: [11/2018 - 08/2020]
Title: HEATING / AIR CONDITIONING: REFRIGERANT (for HFC-134a(R134a)): REPLACEMENT; 2019 - 2020 MY RAV4 RAV4 HV [11/2018 - 08/2020]

REPLACEMENT

PROCEDURE

1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

(a) for HV Model:

(1) Turn the power switch on (READY).

(b) for Gasoline Model:

(1) Start the engine.

Item	Condition
Operating time	3 minutes or more
Temperature setting	Max cold
Blower speed	High
Power switch (for HV Model)	On (READY)
Engine (for Gasoline Model)	Idling
A/C switch	On

This causes most of the compressor oil from the various components of the A/C system to collect in the compressor.

HINT:

It is not necessary to operate the compressor if the A/C does not operate because of compressor lock, etc.

(d) for HV Model:

(1) Turn the power switch off.

(e) for Gasoline Model:

(1) Stop the engine.

(f) Recover the refrigerant from the A/C system using a refrigerant recovery unit.

HINT:

Use the refrigerant recovery unit in accordance with the manufacturer's instruction manual.

2. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT

(a) Perform vacuum purging using a vacuum pump or appropriate equipment.

(b) Charge the air conditioning system with refrigerant.

Refrigerant Type:

HFC-134a (R134a)

*a	Standard Charge Amount	*b	Mean Value in Proper Range
*c	Overcharged	*d	High Pressure
*e	Sub-cool System	*f	Refrigerant Amount
*g	+/-30 g (+/-1.05 oz)	-	-

Standard Charge Amount:

520 to 580 g (18.4 to 20.4 oz)

SST: 09985-20010

09985-02010

09985-02050

09985-02060

09985-02070

09985-02080

09985-02090

09985-02110

09985-02130

09985-02140

09985-02150

NOTICE:

Do not turn the A/C switch on before charging the air conditioning system with refrigerant. Doing so may cause the compressor to operate without refrigerant, resulting in overheating of the compressor.
The refrigerant amount should be checked by quantity (weight).
The graph above is shown for reference only.

HINT:

Ensure that sufficient refrigerant is available to recharge the system when using a refrigerant recovery unit. Refrigerant recovery units are not always able to recover 100% of the refrigerant from an air conditioning system.

3. WARM UP COMPRESSOR (for HV Model)

(a) Keep the A/C switch on for at least 2 minutes to warm up the compressor.

NOTICE:

To prevent damage to the compressor, be sure to warm up the compressor when turning the air conditioning on after removing and installing any air conditioning system lines (including the compressor).

4. WARM UP ENGINE (for Gasoline Model)

(a) Warm up the compressor under the following conditions.

NOTICE:

To prevent damage to the compressor, be sure to warm up the compressor when turning the air conditioning on after removing and installing any air conditioning system lines (including the compressor).

Item	Condition
Operating time	1 minute or more
Temperature setting	Max cold
Blower speed	High
Engine speed	2000 rpm or less
A/C switch	On

5. INSPECT FOR REFRIGERANT LEAK

(a) After recharging the air conditioning system with refrigerant, inspect for refrigerant leaks using a gas leak detector.

(b) Carry out the test under the following conditions:

Turn the ignition switch off.
Ensure good ventilation (the gas leak detector may react to volatile gases which are not refrigerant, such as gasoline vapor and exhaust gas).
Repeat the inspection 2 or 3 times.
Measure the pressure to make sure that there is some refrigerant remaining in the air conditioning system.
Pressure when the compressor is off: approximately 392 to 588 kPa (3.9 to 5.9 kgf/cm², 57 to 85 psi)

*a	Inspect for Leak
*b	Gas Leak Detector

(d) Bring the gas leak detector close to the drain cooler hose with the detector power off, and then turn the detector on.

HINT:

After the blower motor has stopped, leave the cooling unit for more than 15 minutes.
Bring the gas leak detector sensor under the drain cooler hose.
When bringing the gas leak detector close to the drain cooler hose, make sure that the gas leak detector does not react to volatile gases. If it is not possible to avoid interference from volatile gases, the vehicle should be lifted up to allow checking for leaks.

*1	Drain Cooler Hose
*a	Gas Leak Detector

(e) If a refrigerant leak is not detected from the drain cooler hose, remove the blower motor from the cooling unit. Insert the gas leak detector sensor into the unit and check for leaks.

(f) Disconnect the pressure sensor connector and leave it for approximately 20 minutes. Bring the gas leak detector close to the pressure sensor and check for leaks.

HINT:

When checking for leaks, the presence of oily dirt at a joint can indicate a leak.