REPLACEMENT
PROCEDURE
1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
(a) Start the engine.
(b) Operate the cooler compressor under the conditions shown below:
Item |
Condition |
---|---|
Engine Speed |
Idling |
Operating Time |
3 minutes or more |
A/C Switch Status |
On |
Blower Switch Status |
HI |
Set Temperature |
MAX COOL |
This causes most of the compressor oil from the various components of the A/C system to collect in the A/C compressor.
NOTICE:
It is not necessary to operate the cooler compressor if the A/C does not operate because of compressor lock, etc.
(c) Stop the engine.
(d) Recover the refrigerant from the A/C system using a refrigerant recovery unit.
NOTICE:
Be sure to use a refrigerant recovery unit that is compatible with HFO-1234yf (R1234yf) systems.
HINT:
Use the refrigerant recovery unit in accordance with the manufacturer's instruction manual.
2. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT
HINT:
Charge refrigerant in accordance with the equipment manual.
(a) Perform vacuum purging using a refrigerant recover unit.
NOTICE:
Be sure to use a refrigerant recovery unit that is compatible with HFO-1234yf (R1234yf) systems.
(b) Charge refrigerant HFO-1234yf (R1234yf).
Standard:
480 to 540 g (16.93 to 19.05 oz.)
NOTICE:
Make sure the amount of refrigerant is within 30 g of the specified amount.
*a |
Amount to be charged |
*b |
Mean value in proper range |
*c |
Overcharged |
*d |
Pressure |
*e |
Sub-cool system |
*f |
Refrigerant amount |
NOTICE:
Do not operate the cooler compressor before charging refrigerant as the cooler compressor will not work properly without any refrigerant, and will overheat.
3. WARM UP ENGINE
(a) Warm up the engine at less than 1640 rpm for 2 minutes or more after charging the refrigerant.
NOTICE:
Be sure to warm up the compressor by turning the A/C switch on after removing and installing the cooler refrigerant lines (including the compressor) to prevent damage to the compressor.
4. INSPECT FOR REFRIGERANT LEAK
(a) After recharging the refrigerant, check for refrigerant gas leakage using a gas leak detector.
HINT:
Be sure to use a gas leak detector that is compatible with HFO-1234yf (R1234yf) systems.
(1) Perform the operation observing the following instructions:
HINT:
When the compressor is off: approximately 392 to 588 kPa (4.0 to 6.0 kgf/cm2, 57 to 85 psi).
(2) Using a gas leak detector, check the refrigerant line for leakage. |
|
(3) If a gas leak is not detected from the drain hose, remove the blower motor control (blower resistor) from the cooling unit. Insert the sensor of the gas leak detector into the unit and check for gas leakage.
(4) Disconnect the pressure switch connector and wait for approximately 20 minutes. Bring the gas leak detector close to the pressure switch and check for gas leakage.
Text in Illustration
*1 |
Gas Leak Detector |
*a |
Check for Leakage |
Slip Indicator Light Remains ON
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter assembly via CAN communication.
The slip indicator light blinks during VSC and/or TRAC operation.
If a malfunction is detected, the slip indicator light comes on to warn the driver
(See page ).
...
Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION
The skid control ECU (brake actuator assembly) acquires steering angle sensor
zero point every time the ignition switch is turned ON and the vehicle is driven
at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the
previous zero point.
The steering angle ...
Utility
UTILITY
NOTICE:
If the forward recognition camera has been replaced with a new one or
the windshield glass has been removed and installed, it is necessary to
perform Forward Recognition Camera Axis Adjustment. If the system is turned
on without performing Forward Recognition Ca ...