A/C Refrigerant Pressure Sensor And Its Circuit Inspection (Petrol Engine Model); A/C Refrigerant Pressure Sensor And Its Circuit Inspection (Diesel Engine Model); A/C Refrigerant Pressure Sensor Removal And Installation - Suzuki Grand Vitara 2011 Manual

A/C Refrigerant Pressure Sensor and Its Circuit
Inspection (Petrol Engine Model)
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
A/C Refrigerant Pressure Sensor and Its Circuit
Inspection (Diesel Engine Model)
1) Connect manifold gauge set to the charging valves.
2) Check output voltage for A/C refrigerant pressure
sensor (1) between each sensor terminal, and then
compare measured voltage with specified voltage in
graph.
If it does not show such characteristic as shown in
graph, replace refrigerant pressure sensor with new
one.
1
(V)
4.5
3.6
0.42
180
S6JB0A7206015
S6JB0A7206047
2600 3300 (kPa)
I5JB0B720013-01
Air Conditioning System:
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 Charging A/
C with Refrigerant".
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).
[A]
1
[B]
3
1
2
[A]: Petrol engine model
[B]: Diesel engine model
7B-78
S6JB0A7206016
2
I6JB0A720011-01