Expansion Valve On-Vehicle Inspection; Expansion Valve Removal And Installation; A/C Refrigerant Pressure Sensor And Its Circuit Inspection - Suzuki GRAND VITARA Owner's Manual

7B-69 Air Conditioning System:
Reverse the removal procedure nothing the following
instruction.
• Install evaporator temperature sensor (1) onto
evaporator (2) as shown.
[A]
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3
[B]
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2
[A]: LH steering vehicle
[B]: RH steering vehicle
1. Evaporator temperature sensor
2. Evaporator
3. 34.5 mm (1.36 in.)
4. Sensor part fixed to 8th fin from the left-side
5. Holding part fixed to 6th fin from the left-side
6. Holding part fixed to 7th fin from the right-side
7. Sensor part fixed to 8th fin from the right-side

Expansion Valve On-Vehicle Inspection

Refer to "A/C System Performance Inspection: ".
1. Expansion valve

Expansion Valve Removal and Installation

Removal
1) Recover refrigerant from the A/C system with
recovery and recycling equipment referring to
"Recovery" in "Operation Procedure for Charging A/
C with Refrigerant: ".
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2
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2) Loosen a bolt (1) and remove pipes from expansion
valve (2).
3) Loosen bolts (3) and remove expansion valve.
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Installation
1) Reverse removal nothing the following instructions.
• Apply compressor oil to O-ring of expansion valve
and pipes.
2) Evacuate and charge system according to
"Operation Procedure for Charging A/C with
Refrigerant: ".
A/C Refrigerant Pressure Sensor and Its Circuit
Inspection
1) Disconnect A/C refrigerant pressure sensor
connector.
2) Turn ignition switch to ON position.
3) Check if voltage between "GRY/RED" wire terminal
and "GRY/GRN" wire terminal of A/C refrigerant
pressure sensor connector is 4.75 V to 5.25 V.
If not, check A/C refrigerant pressure sensor circuit.
4) Connect A/C refrigerant pressure sensor connector
with ignition switch turned OFF.
5) Connect manifold gauge set to the charging valves.
6) Check A/C refrigerant pressure sensor voltage of
ECM connector referring to "A/C System Inspection
at ECM: ".
If voltage is not as specified below, replace A/C
refrigerant pressure sensor.
A/C refrigerant pressure sensor voltage
specifications (A/C refrigerant pressure measured
by manifold gauge)
0.8 MPa (8.0 kg/cm 2 , 116 psi): Approx. 1.46 – 1.71 V
1.4 MPa (14 kg/cm 2 , 203 psi): Approx. 2.28 – 2.53 V
1.6 MPa (16 kg/cm 2 , 232 psi): Approx. 2.55 – 2.80 V
1.8 MPa (18 kg/cm 2 , 261 psi): Approx. 2.82 – 3.03 V
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