immobilizer CHERY TIGGO 2009 Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine HOW TO LOCATE ELECTRICAL SCHEMATICS IN THESERVICE MANUAL
Electrical Schematic Index
The following table shows where to locate a specific electrical schematic for a vehicle component or system. The
electrical schematics are found throughout the service manual and are easily identified by their components or vehi-
cle systems.
NOTE :
Some service manual chapters DO NOT contain electrical schematics, and will be identified as Nonein the Com-
ponent/Vehicle System column.
SERVICE MANUAL CHAPTER COMPONENT / VEHICLE SYSTEM
01 - General Information •None
02 - Engine •None
03 - Electronic Engine Controls •
Engine Control Module (ECM)
• Engine Coolant Temperature Sensor
• Knock Sensor
• Upstream Oxygen Sensor
• Downstream Oxygen Sensor
• Crankshaft Position Sensor
• Camshaft Position Sensor
• Ignition Coil
• Canister Control Valve
• Front Fuse and Relay Box
• A/C Compressor
• Immobilizer Control Module
• Fuel Injectors
• Manifold Absolute Pressure Sensor (1.6L Only)
• Accelerator Pedal Position Sensor
• Vehicle Speed Sensor
• Throttle Pedal Position Sensor
• Power Steering Switch
• Clutch Pedal Switch (if equipped)
• Electronic Throttle Control Actuator
04 - Fuel Delivery •
Fuel Injectors
• Fuel Level Sensor and Fuel Pump
05 - Starting & Charging •
Starter Motor
• Ignition Switch
• Clutch Pedal Switch (if equipped)
• Generator
06 - Cooling System •Cooling Fan
07 - Exhaust •None
01
01–25Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine SERVICE MANUAL CHAPTERCOMPONENT / VEHICLE SYSTEM
15 - Body & Accessories •
Windshield Wiper Motor
• Windshield Washer Motor
• Rear Window Defroster
• Power Door Locks
• Power Windows
• Power Mirrors
• Sunroof Control Unit
• Radio
• Interior Lights
• Exterior Lights
• Oil Pressure Switch
• Warning Buzzer
• Body Control Module (BCM)
• Instrument Cluster
• Key Switch
• Power Outlet
• Data Link Connector
• Immobilizer Control Module
• Horn
16 - Wiring •
Power Distribution
• Front Fuse and Relay Box
• Power Fuse Box
• Ignition Switch
• Ground Distribution
Abbreviation List
TERM ABBREVIATION
Antilock Brake System ABS
Accelerator Sensor AES
Accelerator Pedal Position Sensor APS
Automatic Temperature Control ATC
Automatic Transaxle Fluid ATF
Body Control Module BCM
Brake Pressure Sensor BPS
Camshaft Position Sensor CMP
Clutch Pedal Position Switch CPP Switch
Crankshaft Position Sensor CKP
Data Link Connector DLC
Diagnostic Trouble Code DTC
Engine Control Module ECM
Engine Coolant Temperature ECT
Engine Speed RPM
Evaporative Emission EVAP
Evaporative Emission Canister EVAP Canister
Evaporative Emission System EVAP System
Exhaust Gas Recirculation Valve EGR Valve
HOW TO LOCATE ELECTRICAL SCHEMATICS IN THE SERVICE MANUAL
01
01–27Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine TERMABBREVIATION
Front Left Wheel Speed Sensor FLS
Front Right Wheel Speed Sensor FRS
Rear Left Wheel Speed Sensor RCS
Rear Right Wheel Speed Sensor RRS
Ground GND
Heated Oxygen Sensor O2S
Idle Air Control IAC
Intake Air Temperature IAT
Ignition IGN
Ignition Control IC
Immobilizer Control Module ICM
Injector INJ
Input Shaft Speed Sensor ISS Sensor
Knock Sensor KS
Manifold Absolute Pressure MAP
Mass Air Flow MAF
Malfunction Indicator Lamp MIL
Oil Pressure Switch OPS
Output Shaft Speed Sensor OSS Sensor
Positive Crankcase Ventilation Valve PCV Valve
Power Supply PWR
SRS Airbag Control System SRC
Throttle Position Sensor TPS
Transaxle Control Module TCM
Turbine Speed Sensor TSS
Vehicle Identification Number VIN
Vehicle Speed Sensor VSS
HOW TO LOCATE ELECTRICAL SCHEMATICS IN THE SERVICE MANUAL
01–28Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK STARTER RELAY (K4) CIRCUIT
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector A.
• Check harness continuity between ECM terminal 14 and front fuse and relay box terminal A1.
• Check harness continuity between front fuse and relay box terminal G2 and A13.
• If not equipped with EOBD (1.6L): Check harness continuity between front fuse and relay box terminal G2 and
G5.
• Continuity should exist.
• Also check harness for a short to ground and short to power.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair circuit for an open or short to ground or short to power in harness or connectors.
11 .CHECK FUSE
• Disconnect fuse 27 (10A), fuse 24 (5A) in the front fuse and relay box.
• If Without EOBD (1.6L): Disconnect fuse 23 (10A), fuse 24 (5A) front fuse and relay box.
• Check fuses.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace fuse 23, fuse 24 or fuse 27.
12.CHECK FRONT FUSE AND RELAY BOX
• Check front fuse and relay box.
Is the check result normal?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>Replace front fuse and relay box.
DIAGNOSIS & TESTING
03–34Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 13.CHECK THE CAMSHAFT AND CAMSHAFT SIGNAL PLATE
• Remove the cylinder head cover and timing belt cover (See Timing Belt Removal & Installation in Section 02
Engine).
• Check the installed clearance (See CMP Sensor Removal & Installation in Section 03 Electronic Engine Con-
trols).
• 0.8 - 1.2 mm should exist.
• Check the camshaft and camshaft signal plate for any condition that would result in an incorrect signal, such as
damage, become flexible, foreign material when rotate the camshaft.
Were any problems found?
Ye s>>Remove debris and clean the signal plate of camshaft rear end or replace camshaft.
Reinstall CMP sensor.
No
>>Go to step 16.
14.CHECK THE CRANKSHAFT AND CRANKSHAFT SIGNAL PLATE
• Check the installed clearance (See CKP Sensor Removal & Installation in Section 08 Transaxle & Transfer
Case).
• 0.8 - 1.2 mm should exist.
• Check the crankshaft and crankshaft signal plate for any condition that would result in an incorrect signal, such
as damage, become flexible, foreign material when rotate the crankshaft.
Were any problems found?
Ye s>>Remove debris and clean the signal plate of crankshaft rear end or replace crankshaft.
Reinstall the CKP sensor.
No
>>Go to the next step.
15.CHECK THE TIMING
• Check the timing for misalignment.
Is the timing misaligned?
Ye s>>Align the engine timing belt (See Timing Belt Removal & Installation in Section 02 Engine).
No
>>Go to the next step.
16.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0016 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–44Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK O2SENSOR HEATER
• Check the resistance between O
2sensor heater terminals, component side.
TERMINAL NO. RESISTANCE
1 and 2 (including cable
and connector) Approximately 9

• Check the resistance between O
2sensor terminals, component side.
TERMINAL NO. RESISTANCE
1and3&4
(Continuity
should not exist)
4and1&2
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace O2sensor.
7.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0031 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–50Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK THE O2SENSOR HEATER
• Check the resistance between O
2sensor heater terminals, component side.
TERMINAL NO. RESISTANCE
1 and 2 (including cable
and connector) Approximately 9

• Check the resistance between O
2sensor terminals, component side.
TERMINAL NO. RESISTANCE
1and3&4
(Continuity should notexist)
4and1&2
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the O2sensor.
7.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0032 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–56Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •If the voltage is out of specification, proceed the following:
Check for the cause of uneven air flow through MAF sensor. Air cleaner seal
Crushed air ducts
Uneven dirt of air cleaner element
• If the parts malfunctioning, repair or replace them.
• If the parts OK, clean the MAF sensor, then check the signal of the MAF sensor.
Is the MAF signal normal?
Ye s>>Go to the next step.
No
>>Replace MAF sensor.
10.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0102 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–62Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 8.CHECK THE MAF SENSOR
• Install all removed parts.
• Start engine.
• Check air flow signal in data stream with the X-431.
TERMINAL
NO. ITEM CONDITION D ATA
(AVERAGE DC
VOLTAGE)
37 Air
flow
sensor •
Engine is
running
• ECT: 78°C
• Idle: 795
RPM
• IAT: 36°C
• IAT signal:
1.88 V Approximately
322 kg/h
Approximately 1.39 V
•If without the X-431, check voltage between MAF sensor terminal 5 and ground.
TERMINAL
NO. ITEM CONDITION D ATA
(AVERAGE DC
VOLTAGE)
37 Air
flow
sensor •
Engine is
running
• ECT: 78°C
• Idle: 795
RPM
• IAT: 36°C
• IAT signal:
1.88 V Approximately
1.39 V
Is the signal voltage of MAF normal?
Ye s>>Go to the next step.
No
>>Replace the MAF sensor.
9.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0103 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03
03–67Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK MAP SENSOR SIGNAL
• Check MAP sensor signal between sensor terminal 4 and ground.
TERMINAL
NO. ITEM
CONDITION DATA (DC
VOLTAGE)
4 MAP
sensor Engine:
Running •
Engine
running: Idle
• Press
accelerator
pedal slowly Approximately
1.3 V
• Press
accelerator
pedal quickly Up to
approximately 4V
(instantaneous)
Is the check result normal?
Ye s>>Go to step 9.
No
>>Go to the next step.
8.CHECK THE MAP SENSOR
• Check sensor as follow:
Remove the sensor.
Visually check and clean the pressure entrance of the sensor for chipping and damage.
Is the check result normal?
Ye s>>Replace the MAP sensor with a known good MAP sensor.
Select view DTC on the X-431 screen.
If DTC P0105 or P0106 is not current present, the system is OK.
If DTC P0105 or P0106 is current present, go to step 8.
No
>>Clear or replace the MAP sensor.
9.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0105 or P0106 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–72Chery Automobile Co., Ltd.