instrument CHERY TIGGO 2009 Service Owner's Guide

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HVAC Housing
Removal & Installation
1. Evacuate the A/C system (See A/C System Evacuation and Recharge in Section 13 Heating & Air Conditioning).
2. Drain the cooling system and then disconnectheater hoses (1). (See Cooling System Draining &
Filling in Section 06 Cooling).
3. Remove the instrument panel (See Instrument Panel Removal & Installation in Section 15 Body & Accessories).
4. Remove the evaporator assembly upper retaining bolts (1).
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13–29Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5. Remove the evaporator assembly lower retainingbolts (1).
6. Disconnect the electrical connectors. Remove the evaporator 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.
• Use only refrigerant oil 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).
Blower Motor
Description
The blower motor is mounted in the HVAC housing. The following are blower motor functions:
•The blower motor will operate whenever the ignition switch is in the ON position and the blower motor control
is in any position except Off.
• The blower motor can be accessed for service from underneath the instrument panel.
• The blower motor and blower motor wheel are factory balanced as an assembly and cannot be adjusted or
repaired and must be replaced if found inoperative or damaged.
Operation
The blower motor is used to control the velocity of air moving through the HVAC housing by spinning the blower
wheel within the HVAC air inlet housing at the selected speed. The blower motor is a 12-volt, direct current (DC)
motor mounted within a plastic housing with an integral wire harness connector. The blower wheel is secured to the
blower motor shaft and is positioned within the air inlet housing on the passenger side of the HVAC housing.
ON-VEHICLE SERVICE
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Downloaded from www.Manualslib.com manuals search engine Removal & Installation
NOTE :
The blower motor is located on the bottom of the HVAC housing. The blower motor can be removed from the vehicle
without having to remove the HVAC housing.1. Disconnect the blower motor electrical connector.
2. Remove the glove box (See Instrument Panel Removal & Installation in Section 15 Body & Accessories).
3. Remove the mounting bolts (1) for the blower motor.
4. Remove the blower motor.
5. Installation is in the reverse order of removal.
ON-VEHICLE SERVICE
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13–31Chery 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 GENERAL INFORMATION
Description
Available occupant restraints for this vehicle include both active and passive types. Active restraints are those which
require the vehicle occupants to take some action to employ, such as fastening a seat belt; while passive restraints
require no action by the vehicle occupants to be employed.
Active Restraints
•Front Seat Belts
• Rear Seat Belts
Passive Restraints
• Driver Airbag
• Passenger Airbag
• Seat Belt Tensioners
Operation
Active Restraints
The primary passenger restraints are the seat belts. Seat belts are referred to as an active restraint because the
vehicle occupants are required to physically fasten and properly adjust these restraints in order to benefit from them.
Passive Restraints
The passive restraints are referred to as a supplemental restraint system because they were designed and are
intended to enhance the protection for the occupants of the vehicle only when used in conjunction with the seat belts.
They are referred to as passive restraints because the vehicle occupants are not required to do anything to make
them operate; however, the vehicle occupants must be wearing their seat belts in order to obtain the maximum safety
benefit from the supplemental restraint system.
The supplemental restraint system electrical circuits are continuously monitored and controlled by a microprocessor
and software contained within the Restraints Control Module (RCM). An airbag indicator in the instrument cluster
illuminates for about seven seconds as a bulb test each time the ignition switch is turned to the ON or START posi-
tions. Following the bulb test, the airbag indicator is turned ON or OFF by the RCM to indicate the status of the
supplemental restraint system. If the airbag indicator comes ON at any time other than during the bulb test, it indi-
cates that there is a problem in the supplemental restraint system electrical circuits. Such a problem may cause
airbags not to deploy when required, or to deploy when not required.
Deployment of the supplemental restraints depends upon the angle and severity of an impact. When an impact is
severe enough, the microprocessor in the RCM signals the inflator of the appropriate airbag units to deploy their
airbag cushions. The front seat belt tensioners are provided with a deployment signal by the RCM in conjunction with
the front airbags.
Specifications
Torque Specifications
DESCRIPTION TORQUE (N·m)
Driver Side Airbag Retaining Bolts 10
Restraints Control Module Retaining Bolts 7-9
Front Passenger Side Airbag Retaining Bolts 10
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Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Diagnostic Help
1. The X-431 scan tool connects to the Data Link Connector (DLC) and communicates with the vehicle electronicmodules through the data network.
2. Confirm that the malfunction is current and carry-out the diagnostic tests and repair procedures.
3. If the DTC cannot be deleted, it is a current fault.
4. Use a digital multimeter to perform voltage readings on electronic systems.
5. Refer to any Technical Bulletins that may apply to the failure.
6. Visually inspect the related wiring harness.
7. Inspect and clean all Restraints Control Module (RCM) grounds that are related to DTC.
8. If numerous trouble codes were set, use a wiring schematic and look for any common ground circuits or voltage supply circuits that may apply to the DTC.
Intermittent DTC Troubleshooting
If the failure is intermittent perform the following:
•Check for loose connectors.
• Look for any chafed, pierced, pinched, or partially broken wires.
• Monitor the scan tool data relative to this circuit.
• Wiggle the related wiring harness and connectors while looking for an interrupted signal on the affected circuit.
• If possible, try to duplicate the conditions under which the DTC set.
• Look for the data to change or for the DTC to reset during the wiggle test.
• Look for broken, bent, pushed out or corroded terminals.
• Inspect the sensor and mounting area for any condition that would result in an incorrect signal, such as dam-
age, foreign material.
• A data recorder, and/or oscilloscope should be used to help diagnose intermittent conditions.
• Remove the Restraints Control Module (RCM) from the troubled vehicle and install in a new vehicle and test. If
the DTC cannot be deleted, the RCM is malfunctioning. If the DTC can be deleted, return the RCM to the origi-
nal vehicle.
Ground Inspection
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground connec-
tions are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can become an unwanted
resistance. This added resistance can alter the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drastically
affect an electronically controlled circuit. A poor or corroded ground can affect the circuit. Perform the following when
inspecting a ground connection:
1. Remove the ground bolt or screw.
2. Inspect all mating surface for tarnish, dirt, rust, etc.
3. Clean as required to assure good contact.
4. Reinstall bolt or screw securely.
5. Inspect for add-onaccessories which may be interfering with the ground circuit.
6. If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and providing a good ground path. If multiple wires are crimped to one eyelet, make
sure no excess wire insulation has been crimped creating a bad ground.
Diagnostic Tools
Diagnostic Scan Tool X-431
Read the following when connecting the X-431 scan tool:
•Connect the scan tool to the Data Link Connector (DLC) for communication with the vehicle.
• The DLC is located on the driver side compartment under the steering column (it is attached to the instrument
panel and accessible from the driver seat).
• The DLC is rectangular in design and capable of accommodating up to 16 terminals.
• The electrical connector has keying features to allow easy connection.
14–8Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NOTE :
The Restraints Control Module (RCM) ground pin must be connected to the vehicle chassis in the immediate location
of the RCM mounting area.
WARNING!
After installing the Restraints Control Module (RCM), make sure all of the connectors are firmly connected, and
the harness is routed properly. The resistance between the RCM housing and the vehicle body should be less
than 100 m.
On Board Diagnostic Logic
•Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
B2501 Warning Lamp Fault
- Open Ignition switch: ON This DTC will set if
the airbag warning
lamp driver circuit is
shorted to ground or
open between the
airbag warning lamp
and the Restraints
Control Module
(RCM). •
Instrument cluster
• Harness is open
between instrument
cluster and RCM
• RCM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Turn ignition switch off.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the latest software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the RCM.
• Turn ignition switch off and wait for a few seconds.
• Turn ignition switch on then select view DTC.
• If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 14 Restraints for more information).
Diagnostic Guide Lines
Observe the following guide lines while diagnosing this DTC:
•Troubleshoot any Engine Control Module (ECM) charging/cranking DTCs before proceeding.
• If the warning lamp goes out immediately after the warning lamp flashed for6-7seconds, this indicates that
the system is OK.
• If the warning lamp is on for6-7seconds continuously, then goes out, or the warning lamp is on continuously,
this indicates that there are history DTCs in the system. Use the Scan Tool to erase the DTCs.
• If any other condition occurs, use the Scan Tool to erase the history DTCs first, then check the warning lamp.
If the warning lamp does not go out immediately after the warning lamp flashes for6-7seconds when using
the Scan Tool, erase the history DTCs first.
• In the course of troubleshooting the airbag system, make sure the system power supply is shut off, and wait
two minutes for the system capacitor to discharge.
• The squib circuit connectors integrate a shortingspring (which prevents the airbag from deploying unintention-
ally due to static electricity by shorting the positive wire to the negative wire in the squib circuit when the con-
nectors are disconnected). Therefore, if the airbag electrical connector or spiral cable electrical connector is
damaged or improperly connected, the shorting spring may not be released when the electrical connector is
connected.
• The following tools are required to perform the DTC diagnostic procedure:
X-431 Scan Tool
Airbag Special Load Tool
Digital Multimeter
DIAGNOSIS & TESTING
14–30Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK RCM DTC
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• Turn the ignition switch on, with the scan tool, view and erase stored DTCs in the RCM.
• Turn the ignition switch off, and wait a few seconds, then turn the ignition switch on.
• Wait one minute, and with the scan tool, view active DTCs in the RCM.
Is DTC B2501 present?
Ye s>>Go to the next step.
No
>>Go to step 5.
2.CHECK WARNING LAMP
• Turn ignition switch off, and wait a few seconds, then turn ignition switch on.
• Observe the airbag warning lamp.
Is the airbag warning lamp not illuminated with the ignition switch ON?
Ye s>>Go to the next step.
No
>>Go to step 4.
3.CHECK WARNING LAMP CIRCUITS
WARNING!
To avoid serious or fatal injury, turn ignition switch off, disconnect the negative battery cable and wait two min-
utes before proceeding.
• Disconnect the RCM electrical connector (1) (See
Restraints Control Module (RCM) Removal & Instal-
lation in Section 14 Restraints).
• Disconnect the instrument cluster electrical connec-
tor.
• Disconnect the front fuse and relay box electrical
connector B14.
NOTE :
Check connectors - Clean and repair as necessary.
• Check fuse F6.
• Measure the following circuits with a digital multim-
eter:
Harness connector C-106, J-100.
Harness for an open between the front fuse
and relay box electrical connector (terminal B4, B14 ) and instrument cluster C-001 (terminal 11 and 13).
Harness for open between the instrument cluster C-001 (terminal 17) and RCM electrical connector J-001 (terminal 7).
• Check the harness for continuity.
DIAGNOSIS & TESTING
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14–31Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Continuity should exist.
Is the check result normal?
Ye s>>Replace the instrument cluster.
If DTC is still present, Go to the next step.
No
>>Repair the harness wires between the RCM electrical connector J-001 (terminal 7) and instrument
cluster C-001 (terminal 17) and the harness wires between combination meter C-001 (terminal 13) and front fuse
and relay box electrical connector (terminal B14) for an open.
4.CHECK CONNECTORS
NOTE :
Diagnose and repair all active codes before diagnosing stored codes (See Restraints Control Module DTC List in
Section 14 Restraints).
• With the scan tool, record and erase all RCM DTCs.
• Using the electrical schematic as a guide, inspect the following:
Inspect the wiring and connectors of the related airbag system.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out or corroded terminals.
Verify that there is good pin to terminal contact in the related connectors.
Were any problems found?
Ye s>>Repair as necessary.
No
>>Go to the next step.
5.CHECK DTC
• Reconnect all disconnected components and harness connectors.
• With the X-431 scan tool, read RCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC B2501 still present?
Ye s>>Replace the RCM.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
14–32Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NOTE :
The Restraints Control Module (RCM) ground pin must be connected to the vehicle chassis in the immediate location
of the RCM mounting area.
WARNING!
After installing the Restraints Control Module (RCM), make sure all of the connectors are firmly connected, and
the harness is routed properly. The resistance between the RCM housing and the vehicle body should be less
than 100 m.
On Board Diagnostic Logic
•Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
B2503 Warning Lamp Fault
- Short To Ground Ignition switch: ONThis DTC will set if
the airbag warning
lamp driver circuit is
shorted to ground
between the airbag
warning lamp and
the Restraints
Control Module
(RCM). •
Instrument cluster
• Harness is shorted
to ground between
instrument cluster
and RCM
• RCM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Turn ignition switch off.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the latest software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the RCM.
• Turn ignition switch off and wait for a few seconds.
• Turn ignition switch on then select view DTC.
• If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 14 Restraints for more information).
Diagnostic Guide Lines
Observe the following guide lines while diagnosing this DTC:
•Troubleshoot any Engine Control Module (ECM) charging/cranking DTCs before proceeding.
• If the warning lamp goes out immediately after the warning lamp flashed for6-7seconds, this indicates that
the system is OK.
• If the warning lamp is on for6-7seconds continuously, then goes out, or the warning lamp is on continuously,
this indicates that there are history DTCs in the system. Use the Scan Tool to erase the DTCs.
• If any other condition occurs, use the Scan Tool to erase the history DTCs first, then check the warning lamp.
If the warning lamp does not go out immediately after the warning lamp flashes for6-7seconds when using
the Scan Tool, erase the history DTCs first.
• In the course of troubleshooting the airbag system, make sure the system power supply is shut off, and wait
two minutes for the system capacitor to discharge.
• The squib circuit connectors integrate a shortingspring (which prevents the airbag from deploying unintention-
ally due to static electricity by shorting the positive wire to the negative wire in the squib circuit when the con-
nectors are disconnected). Therefore, if the airbag electrical connector or spiral cable electrical connector is
damaged or improperly connected, the shorting spring may not be released when the electrical connector is
connected.
• The following tools are required to perform the DTC diagnostic procedure:
X-431 Scan Tool
Airbag Special Load Tool
Digital Multimeter
DIAGNOSIS & TESTING
14–34Chery Automobile Co., Ltd.