Expansion Valve Removal And Installation; Expansion Valve Inspection; A/C Refrigerant Pressure Sensor And Its Circuit Inspection; A/C Refrigerant Pressure Sensor Removal And Installation - Suzuki Swift Sport 2004 Service & Repair Manual

7B-26 Air Conditioning System: Manual Type

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 Refrigerant
Charge".
2) Loosen a bolt (1) and remove pipes from expansion
valve (2).
3) Loosen bolts (3) and remove expansion valve.
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of expansion valve and
pipes.
• Evacuate and charge the A/C system referring to
"Evacuation" and "Charge" in "Operation Procedure
for Refrigerant Charge".
Tightening torque
Expansion valve mount bolt: 3.5 N·m (0.35 kgf-m,
2.5 lb-ft)

Expansion Valve Inspection

Refer to "A/C System Performance Inspection".
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 "RED" wire terminal and
"ORN" 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.
S7RS0B7216010
1
3
2
2
I4RS0A720028-01
S7RS0B7216011
S7RS0B7216012
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): 1.46 – 1.71 V
1.4 MPa (14 kg/cm 2 , 203 psi): 2.28 – 2.53 V
1.6 MPa (16 kg/cm 2 , 232 psi): 2.55 – 2.80 V
1.8 MPa (18 kg/cm 2 , 261 psi): 2.82 – 3.03 V
A/C Refrigerant Pressure Sensor Removal and
Installation
Removal
1) Recover refrigerant from the A/C system with the
recovery and recycling equipment referring to
"Recovery" in "Operation Procedure for Refrigerant
Charge".
2) Disconnect negative (–) cable from battery.
3) Disconnect A/C refrigerant pressure sensor
connector.
4) Remove A/C refrigerant pressure sensor (1) from
liquid pipe (2).
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of A/C refrigerant
pressure sensor.
• Tighten A/C refrigerant pressure sensor to specified
torque.
Tightening torque
A/C refrigerant pressure sensor (a): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
• Evacuate and charge the A/C system referring to
"Evacuation" and "Charge" in "Operation Procedure
for Refrigerant Charge".
S7RS0B7216013
2
1
I4RS0A720029-01
(a)
I4RS0A720031-01