light CHERY TIGGO 2009 Service Owner's Guide

Downloaded from www.Manualslib.com manuals search engine Electronic Engine Control Input & Output Device Failure Modes
NUMBER ITEMFAILURE MODECORRECTION
1 CKP•
Engine is hard to start.
• The engine RPM will be limited after the engine starts.
• The highest RPM is less than 3800.
• Excessive exhaust emissions.
• No ignition signal to the ECM.
• The tachometer does not work.
• Rough engine operation. Replace
2 CMP•
The fuel injector ON time may vary from 720 degrees to 360
degrees.
• The sensor output is not correct, the MIL light will turn on
when with the second revolution after the engine starts.
• Engine is hard to start.
• The highest RPM is less than 4000. Replace
3 APPS•
The MIL light will turn on.
• Poor acceleration.
• The engine RPM will be limited after the engine starts. Replace
4 ECT•
Engine hard to start when cold.
• Engine hard to start when hot.
• Poor driving capability.
• If the sensor circuit is shorted to power, the engine will run
under the default values.
• The temperature gauge indicates too high.
• The temperature gauge indicates too low.
• The cooling fan operates continuously on high speed.
• The high temperature warning lamp will flash when the IP
indicates low temperature. Replace
5 MAF•
The cooling fan will operate for approximately 60 seconds on
high speed after the ignition switch is turned off.
• Poor acceleration.
• Poor driving capability. Replace
6 O2 Sensor •
Poor fuel economy.
• Excessive exhaust emissions.
• Sluggish acceleration.
• Poor driving capability. Replace
7 Knock Sensor •
The engine produces an engine knock.
• Overheated engine.
• Excessive exhaust emissions.
• Poor fuel economy.
• Lack of engine power.
• Internal engine damage. Replace
8 ECM•
Unstable engine idle.
• Poor acceleration.
• Unable to start.
• High engine idle.
• The engine exhaust exceeds emission standards.
• Engine is hard to start.
• Air conditioner does not operate.
• Fuel injector control failure.
• Engine stalls out. Replace
9 Ignition Coil •
Unstable idle.
• Lack of engine power.
• Poor fuel economy

.
• Excessive exhaust emissions.
• Weak spark. Replace
GENERAL INFORMATION
03–4Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NUMBER ITEMFAILURE MODECORRECTION
10 Fuel Injector •
Unstable idle.
• Lack of engine power.
• Poor acceleration.
• Engine will not start.
• Plugged injector. Replace
11 TPS•
Poor acceleration.
• The MIL light will turn on. Replace
12 EVAP•
The engine base fuel closed-loop control self-learning will be
shut off.
• The engine idle air control self-learning will be shut off.
• Unstable idle or high idle. Replace
13 Fuel Pump •
Noisy fuel pump operation.
• Poor acceleration.
• Engine will not start. Replace
14 MAP•
Poor acceleration.
• Unstable idle.
• Rough engine operation. Replace
15 IAT•
Intake air temperature will be equal to the coolant
temperature. Replace
16 Cooling Fan •
High engine temperature.
• Poor air conditioner performance. Replace
17 Accelerator
Sensor •
Misfire
• Poor driving capability.
• Rough engine operation. Replace
Specifications
Torque Specifications
DESCRIPTION
TORQUE (N·m)
Engine Coolant Temperature (ECT) Sensor 20
Knock Sensor 20
Oxygen Sensors 45
Crankshaft Position (CKP) Sensor 10
Camshaft Position (CMP) Sensor 7
Air Flow Sensor Bolts 5
Engine Control Module (ECM) Bolts 10
Accelerator Pedal Position (APP) Sensor 11
Electronic Throttle Control Actuator 10
Vehicle Speed Sensor 10
Manifold Absolute Pressure (MAP) Sensor 6
GENERAL INFORMATION
03
03–5Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Hardware Requirements
The hardware configuration of X-431 is as follows:
Diagnostic Scan Tool Configuration
ITEM NAMEFUNCTION
1 X-431 Main Unit To Display Operational
Buttons, Test Results, Help
Information, etc.
2 Mini-Printer To Print Test Results.
(Optional)
3 CF Card To Store Diagnostic Software
and Data
4 USB Cable To Connect CF Card
Reader/Writer and Computer
5 CF Card
Reader/Writer To Read or Write Data On
The CF Card
6 Mitsubishi-12+16
Pin Connector To Diagnose Mitsubishi
Electronic Control Systems
On Chery B11 Series
7 Fiat-3 Pin
Connector To Diagnose Vehicles With
Fiat-3 Pin Diagnostic
ConnectorITEM NAME
FUNCTION
8 Smart OBDII-16
Pin Connector To Diagnose Other Systems
Of Vehicle With OBDII-16
Pin Diagnostic Connector
9 Power Cord To Connect AC 100 - 240 V
Outlet and Power Adapter
10 Cigarette Lighter
Cable To Get Power From Vehicle
Cigarette Lighter
11 Battery Cable
W/Two Clips To Get Power From Vehicle
Battery
12 Power Adapter To Convert 100 - 240 V AC
Power Into 12 V DC Power
13 Main Cable To Connect The Diagnostic
Connector and Smartbox
14 Smartbox To Perform Vehicle
Diagnosis
GENERAL INFORMATION
BESM030003
03–8Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Electronic Throttle Control Actuator Self-Learning Operation Introduction
EPC Lamp Control Strategy
The Electronic Pedal Control (EPC) lamp will be on for a few seconds and turn off after the ignition switch is turned
on and the engine is not running. After the engine started, the EPC lamp will go off if the DTC is not existent in ECM.
If the internal self-check failed, the EPC lamp will continue to light.
Electronic Throttle Control Actuator Self-Learning Condition
•Engine stopped and the ignition switch on.
• Vehicle speed is 0 km/h.
• The Engine Coolant Temperature (ECT) is between 5.25°C and 100.5°C.
• The intake air temperature is more than 5.25°C.
• The accelerator pedal fully released.
• Battery voltage is more than 12 V.
Electronic Throttle Control Actuator Self-Learning Operating Procedure
Turn the ignition switch on for 10 seconds, then turn the ignition switch off. During the procedure, do not operate any
other components.
Self-Learning Components
Perform the self-learning process when the following repairs have been made:
•Replaced the ECM
• ECM which was disconnected and reconnected
• Replaced the Accelerator Pedal
• Replaced the Electronic Throttle Control Actuator
Self-Learning Operating Procedure
Turn the ignition switch on for 10 seconds, then turn the ignition switch off. During the procedure, do not operate any
other components.
Self-Learning Condition
The self-learning condition as the Electronic Throttle Control Actuator Self-Learning Condition.
CAUTION:
Ensure that the Electronic Throttle Control Actuator self-learning process lasts for at least 10 sec-
onds according to the Electronic Throttle Control Actuator self-learning condition. If the self-learn-
ing process fails, the engine can’t be started or the EPC lamp will be on. If this condition occurs,
perform the Self-Learning operating again after the DTCs be erased in ECM.
Diagnostic Trouble Code (DTC) List
DTC DTC DEFINITION
P000A ACamshaft Position Slow Response
P000B BCamshaft Position Slow Response
P0010 ACamshaft Position Actuator Circuit/Open
P0011 ACamshaft Position - Timing Over - Advanced or System Performance
P0012 ACamshaft Position - Timing Over - Retarded
P0013 BCamshaft Position - Actual Circuit/Open
P0014 BCamshaft Position - Timing Over - Advanced or System Performance
P0015 BCamshaft Position - Timing Over - Retarded
P0016 Crankshaft - Camshaft Position Correlation
P0030 O
2Sensor Heater Control Circuit (Bank 1 Sensor 1)
P0031 O
2Sensor Heater Control Circuit (Bank 1 Sensor 1) Low
DIAGNOSIS & TESTING
03
03–23Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL NO.ITEMTEST METHOD DATA (AVERAGE DC
VOLTAGE)
19 Knock sensor 1 •
Test Method 1: Knock at
cylinder with rubber
hammer
• Test Method 2: Knock at
sensor slightly Output signal voltage
should exist.
20 Knock sensor 2
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC SET CONDITION POSSIBLE CAUSE
P0324 Knock control system
error ECM detected that the
input signal is out of the
acceptable range. •
Knock sensor
• Harness or connectors
• ECM
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 most current software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the ECM.
• Run engine for a while then select view DTC.
• If DTC is detected, go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help in Section 03 Electronic
Engine Controls).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con-
trols).
• Inspect ground connections E-207 and E-208 mounting position (See Vehicle Wiring Harness Layout - Engine
Room Harness (With 1.6L/1.8L Engine) in Section 16 Wiring).
Are the ground connections OK?
Ye s>>Go to the next step.
No
>>Repair or replace ground harness or connections.
DIAGNOSIS & TESTING
03–178Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.CHECK KNOCK SENSOR SIGNAL
• Check knock sensor (1) output signal as table
shown.
• Set the digital multimeter to the voltage range.
KNOCK SENSOR
TERMINAL NO. TEST METHOD
1&2Test Method 1: Knock at
cylinder with rubber hammer
Test Method 2: Knock at sensor slightly
• Output signal voltage should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace knock sensor.
5.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0324 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
BESM030018
03–180Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL NO.ITEMCONDITIONX-431 DATA STREAM
46 Canister control valve When engine is running 0 % - 99.9 %
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P0444 Evaporative
emission system
purge control valve circuit open Engine is running ECM detected that
the improper voltage
signal is sent to
ECM. •
EVAP canister
control valve
• Harness or
connectors
• ECM
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 most current software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the ECM.
• Start engine and warm it up to the normal operating temperature then select view DTC.
• If DTC is detected, go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnosis & Testing Diagnostic Help in Sec-
tion 03 Electronic Engine Controls).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con-
trols).
• Inspect ground connections E-207 and E-208 mounting position (See Vehicle Wiring Harness Layout - Engine
Room Harness (With 1.6L/1.8L Engine) in Section 16 Wiring).
Are the ground connections OK?
Ye s>>Go to the next step.
No
>>Repair or replace ground connections.
2.CHECK EVAP CANISTER CONTROL VALVE ACTION
• Start engine and warm it up to the normal operating temperature then select view DTC.
• Touch the EVAP canister valve body, raise engine speed up to 2,000 RPM.
• Use the scan tool X-431 ACTIVE TESTfunction of the EVAP canister valve, touch the EVAP canister valve
body, perform the action test.
• A slight vibration should exist.
Is the check result normal?
Ye s>>Go to step 7.
No
>>Go to the next step.
DIAGNOSIS & TESTING
03–188Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Upstream Oxygen Sensor
The input from the upstream heated oxygen sensor tells the Engine Control Module (ECM) the oxygen content of the
exhaust gas. Based on this input, the ECM fine tunes the air-fuel ratio by adjusting injector pulse width.
Downstream Oxygen Sensor
The downstream heated oxygen sensor signal is used to detect catalytic convertor deterioration. As the convertor
deteriorates, the signal from the downstream sensor begins to match the upstream sensor signal except for a slight
time delay. By comparing the downstream heated oxygen sensor signal to the signal from the upstream sensor, the
ECM calculates catalytic convertor efficiency. This calculation is also used to establish the upstream O2 goal voltage
(switching point).
Removal & Installation - Upstream Oxygen Sensor
1. Disconnect the negative battery cable.
2. Disconnect the oxygen sensor electrical connector.
CAUTION:
Remove the oxygen sensor after the exhaust pipe has cooled.
3. Remove the upstream oxygen sensor (1).(Tighten: Upstream oxygen sensor to 45 N·m)
4. Installation is in the reverse order of removal.
Installation Notes:
• Before installing the oxygen sensor, coat the threads with rust inhibiting lubricant.
Removal & Installation - Downstream Oxygen Sensor
1. Disconnect the negative battery cable.
2. Disconnect the oxygen sensor electrical connector.
CAUTION:
Remove the oxygen sensor after the exhaust pipe has cooled.
3. Remove the downstream oxygen sensor (2).
(Tighten: Downstream oxygen sensor to 45 N·m)
ON-VEHICLE SERVICE
BESM030017
BESM030017
03
03–219Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Electronic Engine Control Input & Output Device Failure Modes
NUMBER ITEMFAILURE MODECORRECTION
1 CKP•
Engine is hard to start.
• The engine RPM will be limited after the engine starts.
• The highest RPM is less than 3800.
• Excessive exhaust emissions.
• No ignition signal to the ECM.
• The tachometer does not work.
• Rough engine operation. Replace
2 CMP•
The fuel injector ON time may vary from 720 degrees to 360
degrees.
• The sensor output is not correct, the MIL light will turn on
when with the second revolution after the engine starts.
• Engine is hard to start.
• The highest RPM is less than 4000. Replace
3 APPS•
The MIL light will turn on.
• Poor acceleration.
• The engine RPM will be limited after the engine starts. Replace
4 ECT•
Engine hard to start when cold.
• Engine hard to start when hot.
• Poor driving capability.
• If the sensor circuit is shorted to power, the engine will run
under the default values.
• The temperature gauge indicates too high.
• The temperature gauge indicates too low.
• The cooling fan operates continuously on high speed.
• The high temperature warning lamp will flash when the IP
indicates low temperature. Replace
5 MAF•
The cooling fan will operate for approximately 60 seconds on
high speed after the ignition switch is turned off.
• Poor acceleration.
• Poor driving capability. Replace
6O
2Senser •
Poor fuel economy.
• Excessive exhaust emissions.
• Sluggish acceleration.
• Poor driving capability. Replace
7 Knock Sensor •
The engine produces an engine knock.
• Overheated engine.
• Excessive exhaust emissions.
• Poor fuel economy.
• Lack of engine power.
• Internal engine damage. Replace
8 ECM•
Unstable engine idle.
• Poor acceleration.
• Unable to start.
• High engine idle.
• The engine exhaust exceeds emission standards.
• Engine is hard to start.
• Air conditioner does not operate.
• Fuel injector control failure.
• Engine stalls out. Replace
9 Ignition Coil •
Unstable idle.
• Lack of engine power.
• Poor fuel economy.
• Excessive exhaust emissions.
• Weak spark. Replace
GENERAL INFORMATION
03–230Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NUMBER ITEMFAILURE MODECORRECTION
10 Fuel Injector •
Unstable idle.
• Lack of engine power.
• Poor acceleration.
• Engine will not start.
• Plugged injector. Replace
11 TPS•
Poor acceleration.
• The MIL light will turn on. Replace
12 EVAP•
The engine base fuel closed-loop control self-learning will be
shut off.
• The engine idle air control self-learning will be shut off.
• Unstable idle or high idle. Replace
13 Fuel Pump •
Noisy fuel pump operation.
• Poor acceleration.
• Engine will not start. Replace
14 MAP•
Poor acceleration.
• Unstable idle.
• Rough engine operation. Replace
15 IAT•
Intake air temperature will be equal to the coolant
temperature. Replace
16 Cooling Fan •
High engine temperature.
• Poor air conditioner performance. Replace
17 Accelerator
Sensor •
Misfire
• Poor driving capability.
• Rough engine operation. Replace
Specifications
Torque Specifications
DESCRIPTION
TORQUE (N·m)
Engine Coolant Temperature Sensor 20
Knock Sensor 20
Oxygen Sensors 45
Crankshaft Position Sensor 10
Camshaft Position Sensor 7
Air Flow Sensor 5
Engine Control Module 10
Accelerator Pedal Position Sensor 11
Electronic Throttle Control Actuator 10
Vehicle Speed Sensor 10
GENERAL INFORMATION
03
03–231Chery Automobile Co., Ltd.