low oil pressure CHERY TIGGO 2009 Service Service Manual

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The A/C refrigerant lines and pipes are used to carry the refrigerant between the various A/C system components.
Any kinks or sharp bends in the refrigerant lines and hoses will reduce the capacity of the entire A/C system and can
reduce the flow of refrigerant within the system.
Operation
High pressure is produced in a refrigerant system when the A/C compressor is operating. Extreme care must be
exercised to make sure that each of the refrigerant system connections is pressure-tight and leak free. It is a good
practice to inspect all flexible hose refrigerant lines at least once a year to make sure they are in good condition and
properly routed. Depending on vehicle, model and market application, refrigerant lines are connected to each other or
other A/C system components with block-type or quick-connect type fittings. To ensure the integrity of the refrigerant
system, O-rings and/or gaskets may be used to seal the refrigerant system connections. The refrigerant lines and
hoses cannot be repaired and must be replaced if leaking or damaged.
WARNING!
The A/C system contains refrigerant under high pressure. Repairs should only be performed by qualified service
personnel. Serious or fatal injury may result from improper service procedures.
If accidental A/C system discharge occurs, ventilate the work area before resuming service. Large amounts of
refrigerant released in a closed work area will displace the oxygen and cause suffocation and serious or fatal
injury.
CAUTION:
Never add R-12 to a refrigerant system designed to use R-134a. Do not use R-12 equipment or
parts on an R-134a A/C system. These refrigerants are not compatible and damage to the A/C sys-
tem will result.
CAUTION:
Never use R-12 refrigerant oil in an A/C system designed to use R-134a refrigerant oil. These refrig-
erant oils are not compatible and damage to the A/C system will result.
CAUTION:
Do not run the engine with a vacuum pump in operation or with a vacuum present within the A/C
system. Failure to follow this caution will result in serious A/C compressor damage.
CAUTION:
Do not overcharge the refrigerant system. Overcharging will cause excessive compressor head
pressure and can cause compressor noise and A/C system failure.
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
A/C Compressor Bracket Bolts 40
A/C Compressor Line Bolts 20
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13–33Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 12. If the noise is from liquid refrigerant slugging in the A/C suction line, replace the A/C accumulator and check therefrigerant oil level and the refrigerant system charge.
13. If a slugging condition still exists after replacing the A/C accumulator, replace the A/C compressor.
Refrigerant System Leaks
WARNING!
R-134a service equipment or vehicle A/C systems should not be pressure tested or leak tested with compressed
air. Mixture of air and R-134a can be combustible at elevated pressures. These mixtures are potentially danger-
ous and may result in fire or explosion causing property damage, personal injury or death. Avoid breathing A/C
refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat. Use only approved service
equipment meeting SAE requirements to discharge an R-134a system. If accidental system discharge occurs,
ventilate work area before resuming service.
NOTE :
If the A/C refrigerant system charge is empty or low, a leak in the A/C system is likely. Inspect all A/C lines, fittings
and components for an oily residue. Oil residue can be an indicator of an A/C system leak location.
NOTE :
The only way to correctly determine if the refrigerant system is fully charged with R-134a is to completely evacuate
and recharge the A/C system.
Refrigerant System Empty
1. Evacuate the refrigerant system to the lowest degree of vacuum possible. Determine if the system holds a vac- uum for 15 minutes. If vacuum is held, a leak is probably not present. If system will not maintain vacuum level,
proceed to STEP 2.
2. Prepare and dispense 0.3 kilograms of R-134a refrigerant into the evacuated refrigerant system and proceed to STEP 1 of the System Low procedure.
Refrigerant System Low
1. Position the vehicle in a wind-free work area. This will aid in detecting small leaks.
2. Operate the heating-A/C system with the engine at idle under the following conditions for at least 5 minutes:Doors or windows open, transaxle in Park or Neutral with the parking brake set (depending on application), A/C-
Heater controls set to outside air, full cool, panel mode, high blower and with A/C compressor engaged.
3. Shut the vehicle Off and wait2-7minutes. Then use an electronic leak detector that is designed to detect R-134a refrigerant and search for leaks. Fittings, lines or components that appear to be oily usually indicate a
refrigerant leak. To inspect the A/C evaporator for leaks, insert the leak detector probe into the drain tube open-
ing or an air outlet. A dye for R-134a is available to aid in leak detection. Use only approved refrigerant dye.
CAUTION:
A leak detector only designed for R-12 refrigerant will not detect leaks in an R-134a refrigerant sys-
tem.
DIAGNOSIS & TESTING
13–36Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 1. Connect the refrigerant recovery/recycling stationto the vehicles high and low side A/C line
connectors.
NOTE: The refrigerant recovery/recycling station
connectors are connected to the vehicle in the fol-
lowing way:
• BLUE connector (1) is connected to the A/C low side
fitting.
• RED connector (2) is connected to the A/C high side
fitting.
A/C System Evacuation
CAUTION:
Do NOT run the engine with a vacuum pump in operation or with a vacuum present within the A/C
system. Failure to follow this caution will result in serious A/C compressor damage.
NOTE :
Special effort must be used to prevent moisture from entering the A/C system oil. Moisture in the oil is very difficult
to remove and will cause a reliability problem with the A/C compressor.
If the refrigerant system has been open to the atmosphere, it must be evacuated before the system can be filled.
Moisture and air mixed with the refrigerant will raise the compressor high pressure above acceptable operating lev-
els. This will reduce the performance of the A/C system and damage the A/C compressor. Moisture will boil at near
room temperature when exposed to vacuum.
NOTE :
When connecting the service equipment coupling to the line fitting, verify that the valve of the coupling is fully closed.
This will reduce the amount of effort required to make the connection.
To evacuate the refrigerant system:
1. With the engine OFF, connect a suitable charging station, refrigerant recovery machine or a manifold gauge set with vacuum pump and refrigerant recovery equipment. Do not operate the engine with a vacuum on the A/C
system.
2. Open the suction and discharge valves and start the vacuum pump. The vacuum pump should run a minimum of 45 minutes prior to charge to eliminate all moisture in system. When the suction gauge reads to the lowest
degree of vacuum possible for 30 minutes, close all valves and turn off vacuum pump. If the system fails to
reach specified vacuum, the refrigerant system likely has a leak that must be corrected. If the refrigerant system
maintains specified vacuum for at least 30 minutes, start the vacuum pump, open the suction and discharge
valves. Then allow the system to evacuate an additional 10 minutes.
3. Close all valves.
4. Turn off and disconnect the vacuum pump.
5. Charge the refrigerant system.
A/C System Recharge
After all refrigerant system leaks have been repaired and the refrigerant system has been evacuated, a refrigerant
charge can be injected into the system.
CAUTION:
A small amount of refrigerant oil is removed from the A/C system each time the refrigerant system
is recovered and evacuated. Before charging the A/C system, you MUST replenish any oil lost dur-
ing the recovery process.
1. Evacuate the refrigerant system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Con- ditioning).
ON-VEHICLE SERVICE
LTSM130022
13–38Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7. Remove the A/C compressor bracket bolts (1).(Tighten: A/C compressor bracket bolts to 40 N·m)
8. Carefully remove the A/C compressor and bracket assembly.
9. Installation is in the reverse order of removal.
Installation Notes:
• Lubricate new rubber O-ring seals with clean refrig-
erant oil and install them and new gaskets onto the
refrigerant line fittings.
• Use only the specified O-rings as they are made of
a special material for the R-134a system.
• Use only refrigerant oil of the type recommended
for the A/C compressor in the vehicle.
• Recharge the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Condition-
ing).
Removal & Installation - 2.4L
1. Evacuate the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Conditioning).
2. Disconnect the A/C compressor electrical connector.
3. Remove the engine drive belt (See Drive Belt Removal & Installation in Section 02 Engine).
4. Remove the A/C compressor low-pressure line bolt (1) and high-pressure line bolt (2) from the A/C compressor.
(Tighten: A/C compressor line bolts to 20 N·m)
5. Remove the A/C compressor mounting bolts (1). (Tighten: A/C compressor bracket bolt to 40 N·m)
6. Carefully remove the A/C compressor assembly.
7. Installation is in the reverse order of removal.
Installation Notes:
• Lubricate new rubber O-ring seals with clean refrigerant oil and install them and new gaskets onto the refriger-
ant line fittings.
• Use only the specified O-rings as they are made of a special material for the R-134a system.
ON-VEHICLE SERVICE
VISM130004
LTSM130008
LTSM130006
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13–41Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
• Recharge the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Condition-
ing).
Evaporator
Description
The evaporator core is located in the HVAC housing, under the instrument panel. The evaporator coil is positioned in
the HVAC housing so that all air that enters the housing must pass over the fins of the evaporator before it is dis-
tributed through the system ducts and outlets. However, air passing over the evaporator core fins will only be con-
ditioned when the compressor is engaged and circulating refrigerant through the evaporator coil tubes.
Operation
Refrigerant enters the evaporator from the orifice tube as a low-temperature, low-pressure liquid. As air flows over
the fins of the evaporator, the humidity in the air condenses on the fins, and the heat from the air is absorbed by the
refrigerant. Heat absorption causes the refrigerant to boil and vaporize. The refrigerant becomes a low-pressure gas
before it leaves the evaporator. The evaporator core housing directs airflow from the blower motor through the evap-
orator core and heater core. All airflow from the blower motor passes through the evaporator core. The airflow is then
directed through or around the heater core by the temperature blend door(s).
Removal & Installation
1. Evacuate the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Conditioning).
2. Remove the expansion valve.
3. Remove the HVAC housing (See HVAC Housing Removal and Installation in Section 13 Heating & Air Condi-
tioning).
4. Remove the retaining bolts and screws.
5. Remove the evaporator core.
6. Installation is in the reverse order of removal.
Installation Notes:
• Lubricate new rubber O-ring seals with clean refrigerant oil and install them and new gaskets onto the refriger-
ant line fittings.
• Use only the specified O-rings as they are made of a special material for the R-134a system.
• Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
• Recharge the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Condition-
ing).
Condenser
Description
The condenser is located in the air flow in front of the engine cooling radiator. The condenser transforms the refrig-
erant from a gas into a liquid. It is attached to the vehicle with bolts and the A/C lines with fittings.
Operation
When the heat is removed from the refrigerant, it condenses. When the refrigerant leaves the condenser, it becomes
a high-pressure liquid refrigerant. The volume of air flowing over the condenser fins is critical to the proper cooling
performance of the air conditioning system. Therefore, it is important that there are no objects placed in front of the
radiator grille openings in the front of the vehicle or foreign material on the condenser fins that might obstruct proper
air flow. Also, any factory-installed air seals or shrouds must be properly reinstalled following radiator or condenser
service.
ON-VEHICLE SERVICE
13–42Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3. Remove the bolt (2) that secures the A/C liquid and suction line assembly to the A/C expansion valve.
4. Remove the lines retaining bolts (1).
5. Remove the A/C liquid line assembly from the A/C evaporator to compressor and remove and discard the seals.
6. Install plugs in, or tape over the opened refrigerant line fittings and the evaporator ports.
7. Remove the A/C liquid line assembly from accumulator to condenser and from accumulator to evaporator.
8. Installation is in the reverse order of removal.
Installation Notes:
• Lubricate new rubber O-ring seals with clean refrigerant oil and install them and new gaskets onto the refriger-
ant line fittings.
• Use only the specified O-rings as they are made of a special material for the R-134a system.
• Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
• Recharge the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Condition-
ing).
Suction Line
Description
The A/C suction line connects the A/C compressor to the A/C accumulator.
Operation
The low pressure A/C suction line is the refrigerant line that carries refrigerant from the A/C accumulator to the A/C
compressor. Air conditioning hoses are designed to control liquid and gas at high pressures and temperatures. The
hoses are usually flexible and equipped with special metal fittings at the ends to prevent leaks and provide a sure
seal and connection between components.
Removal & Installation
1. Disconnect the negative battery cable.
2. Evacuate the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Conditioning).
ON-VEHICLE SERVICE
LTSM130007
13
13–45Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine CHIME
Description
The chime is located in the Instrument Cluster (IC). The chime warning system is an audible notification to the driver.
The chime warning system is designed to alert the driver of a vehicle problem or condition.
Operation
The Instrument Cluster (IC) uses hard wired inputs from various sensors and switches to activate the chime. The
sensors and switches are located throughout the vehicle. The following conditions will cause the chime to operate:
•Turn signal on
• Hazard warning flashers on
• Seat belt unbuckled
• Low fuel level
• Low oil pressure
• Low brake fluid level
• Doors unlocked
CHIME
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15–19Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine INSTRUMENT CLUSTER
Description
The Instrument Cluster (IC) is located in the instrument panel directly in front of the driver. The IC is used to inform
the driver of specific vehicle information. The IC uses indicator lamps and gauges to warn the driver of potentially
critical operating conditions.
Operation
The Instrument Cluster (IC) uses hard wired inputs from various sensors and switches. The sensors and switches are
located throughout the vehicle. The IC displays the following gauges:
•Speedometer - The IC displays the vehicle speed as determined by the Engine Control Module (ECM).
• Tachometer - The IC displays the engine speed as determined by the Engine Control Module (ECM).
• Temperature Gauge - The IC displays the engine coolant temperature as determined by the Engine Control
Module (ECM).
• Fuel Gauge - The IC displays the amount of fuel in the fuel tank as determined by the fuel level sensor.
1 - Tachometer
2 - Maintenance Indicator Light
3 - Cruise Indicator Light
4 - Parking Brake System Warning Light
5 - Parking Light
6 - Malfunction Indicator Light
7 - Left-Turn Light
8 - Door/Trunk Lid Open Warning Display
9 - Charging System Light
10 - Front Fog Light Indicator Light
11 - Brake System Warning Light
12 - High Beam Indicator Light
13 - Speedometer
14 - Airbag Light
15 - Rear Fog Light Indicator Light16 - 4WD Warning Light (If Equipped)
17 - Right-Turn Light
18 - Low Fuel Warning Light
19 - ABS Warning Light
20 - Oil Pressure Warning Light
21 - Fuel Gauge
22 - Temperature Gauge
23 - Electronic Throttle Control Indicator Light
24 - Km/h Light
25 - Transaxle Range Indicator (If Equipped)
26 - Odometer/Trip Odometer
27 - Digital Clock
28 - Adjust Button
29 - Seat Belt Reminder Light
30 - Coolant Temperature Warning Light
LTSM150129
15–52Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Instrument Cluster Connector Pin-Out Table
Instrument Cluster Connector Pin-Out Table
PINCIRCUIT IDENTIFICATION PINCIRCUIT IDENTIFICATION
1 Door Lamp 33N/A (With ACTECO Engine)
P (With MITSUBISHI Engine)
2 N/A (With ACTECO Engine)
34N/A (With ACTECO Engine)
GND (With MITSUBISHI Engine) R (With MITSUBISHI Engine)
3 GND (Power) 35
N/A (With ACTECO Engine)
N (With MITSUBISHI Engine)
4 PWM Gear Mode 36
N/A (With ACTECO Engine)
Auto Mode (With MITSUBISHI Engine)
5 GND (Sensor) 37
N/A (With ACTECO Engine)
4 (With MITSUBISHI Engine)
6 Front Fog Lamp 38
N/A (With ACTECO Engine)
3 (With MITSUBISHI Engine)
7— 39
N/A (With ACTECO Engine)
2 (With MITSUBISHI Engine)
8 Cruise Lamp 40
N/A (With ACTECO Engine)
1 (With MITSUBISHI Engine)
9 Low Oil Pressure Lamp 41—
10 Speed Input 42Rear Fog Lamp
11 Continuous Supply Voltage 43—
12 Illumination Lamp 44—
13 Ignition Switch 45—
14 ABS Lamp 46—
15 Diagnostic Link K 47Sport Mode (With ACTECO Engine)
N/A (With MITSUBISHI Engine)
16 Charge Lamp 48Winter Mode (With ACTECO Engine)
N/A (With MITSUBISHI Engine)
17 Airbag Lamp 49TCM Failure (With ACTECO Engine)
N/A (With MITSUBISHI Engine)
18 Parking Brake Lamp 50—
19 Seatbelt Lamp 51—
20 MIL Lamp 52—
21 Low Fuel Level Lamp 53—
22 Left Turn Lamp 54—
23 Coolant Temperature Input 55—
24 Right Turn Lamp 56—
25 High Beam Lamp 57—
26 Low Brake Fluid Level Lamp 58—
27 Vehicle Speed Input 59—
28 Parking Lamp 60—
29 EPC Lamp 61—
INSTRUMENT CLUSTER
15–62Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine A/1Power Fuse Box B3
B /1Power Fuse Box B3
C /1Power Fuse Box B3
D /1Power Fuse Box B4
E /1Power Fuse Box B4
E-001 B/81 ECM D2
E-002 B/25 ABS Hydraulic Control Module D2
E-003 B/4A/C Pressure Switch D2
E-004 W-O/4 Upstream Oxygen Sensor D3
E-005 W-O/4 Downstream Oxygen Sensor (With EOBD) D3
E-006 B/3Crankshaft Position Sensor C4
E-007 B/3Camshaft Position Sensor C4
E-008 B/3Generator C2
E-009 B/5Air Flow Sensor C4
E-010 B/2Fuel Injector No.1 C3
E-011 B/2Fuel Injector No.2 C3
E-012 B/2Fuel Injector No.3 C3
E-013 B/2Fuel Injector No.4 C4
E-014 B/1Power Steering Switch B2
E-015 B/2A/C Compressor B2
E-016 W/1 Oil Pressure Switch B2
E-017 B/3Knock Sensor B3
E-018 B/1Starter Motor B4
E-019 B/2Engine Coolant Temperature Sensor C4
E-020 B/4Ignition Coil C4
E-021 B/2Backup Lamp Switch C4
E-022 B/3Canister Control Valve C4
E-023 B/3Vehicle Speed Sensor D4
E-024 GR/2 Brake Fluid Level Switch D4
E-025 GR/5 Front Wiper Motor D4
E-026 B/2Siren D3
E-027 B/6Electronic Throttle Control Actuator B3
E-028 B/2Front Wheel Speed Sensor LH D5
E-029 B/2Front Wheel Speed Sensor RH D1
E-030 B/2Front Fog Lamp LH B5
E-033 B/4Manifold Absolute Pressure Sensor (With
1.6L Engine) C3
E-034 B/10 Front Combination Lamp LH C5
E-035 B/3Accelerator Sensor C2
E-038 B/3Side Turn Signal Lamp LH D5
E-039 B/2Side Turn Signal Lamp RH D1
E-040 B/2Front Fog Lamp RH B1
E-041 B/4Downstream Oxygen Sensor (Without
EOBD) D3
E-042 B/10 Front Combination Lamp RH C1
VEHICLE HARNESS ROUTING MAPS
16
16–49Chery Automobile Co., Ltd.