A/C Refrigerant Pressure Sensor And Its Circuit Inspection; A/C Refrigerant Pressure Sensor Removal And Installation; A/C Switch Inspection - Suzuki SX4 Service Manual
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (278 pages) ,
- Owner's manual (16 pages)
Table of Contents
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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: Manual Type".
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 kgf/cm
2
, 116 psi): 1.40 – 1.78 V
1.4 MPa (14 kgf/cm
2
, 203 psi): 2.18 – 2.64 V
1.6 MPa (16 kgf/cm
2
, 232 psi): 2.44 – 2.92 V
1.8 MPa (18 kgf/cm
2
, 261 psi): 2.70 – 3.21 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: Manual Type".
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).
1
Installation
Reverse removal procedure noting the following
instructions.
S7RW0A7216014
• Apply compressor oil to O-ring of A/C refrigerant
• Tighten A/C refrigerant pressure sensor to specified
• Evacuate and charge the A/C system referring to
A/C Switch Inspection
• Check that there is continuity between terminal (1)
S7RW0A7216015
• Check that there is no continuity between terminal (1)
If check result does not meet the above conditions,
replace HVAC control unit.
2
I5RW0A721029-01
Air Conditioning System: Manual Type 7B-29
pressure sensor.
torque.
Tightening torque
A/C refrigerant pressure sensor (a): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
(a)
"Evacuation" and "Charge" in "Operation Procedure
for Refrigerant Charge: Manual Type".
and terminal (2) when A/C switch is at ON position.
and terminal (2) when A/C switch is at OFF position.
1
I5RW0A721030-01
S7RW0A7216016
2
I5RW0A721031-01
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Troubleshooting
Need help?
Do you have a question about the SX4 and is the answer not in the manual?
Questions and answers
Adjust throttle motor
The idle speed on a Suzuki SX4 should be controlled by the Idle Air Control Valve (IACV) rather than adjusting the idle screw on the throttle body, as the screw is factory set. Before using compressed air in the idle-air-bypass passages, the IACV should be removed to prevent damage to its delicate mechanism. If there is an issue with idle speed, checking the IACV function and referring to the SX4 service manual is recommended.
This answer is automatically generated
I have an issue of crank but not starting When I scan it brought this codeU0100 Which means no communication thou crank sensor wire was cut off but it was fix back What could be wrong and what could be the solution,
increasing revs when changing gears
The Suzuki SX4 may have increasing revs when changing gears due to its drive-by-wire system and the difference in final drive ratios between the manual (4.41) and automatic (2.81) transmissions. This difference causes high cruising RPMs in the manual version and sluggishness in the automatic. Additionally, if the revs climb while going uphill, it may be due to the transmission downshifting or kicking out of overdrive. Other possible causes include low transmission fluid, abuse, or a faulty transmission design.
This answer is automatically generated
My heater stopped working the blower **** is good, control unit ?
Possible issues with the heater in a Suzuki SX4 if the blower is working but the heater is not include:
1. Incorrect Temperature Output
- Temperature control cable broken or bent (non-A/C and manual A/C) → Check the temperature control cable.
- Temperature selector faulty (non-A/C and manual A/C) → Check the temperature selector.
- Incorrect installation of the temperature control cable (non-A/C and manual A/C) → Check and adjust the position as necessary.
- Temperature control door assembly broken → Repair the temperature control door assembly.
- Air ducts clogged → Repair air ducts.
- Heater core leaked or clogged → Replace the heater core.
- Heater hoses leaked or clogged → Replace heater hoses.
- Thermostat faulty → Check the thermostat.
- Temperature control actuator faulty (auto A/C) → Check the temperature control actuator.
- HVAC control module faulty (auto A/C) → Check the HVAC control module.
- Wiring or grounding faulty (auto A/C) → Repair as necessary.
2. Other Possible Causes
- Air flow control cable broken or bent → Check the air flow control cable.
Checking and addressing these components should help identify and resolve the heater issue.
This answer is automatically generated