fuel CHERY TIGGO 2009 Service Owner's Guide

Downloaded from www.Manualslib.com manuals search engine ELECTRONIC ENGINE CONTROLS
03
CONTENTSpage
1.6L & 1.8L Engine Controls ........................................................... 03-1
2.0L Engine Controls ................................................................ 03-227
2.4L Engine Controls ................................................................ 03-441
2.4L Engine Symptom Diagnosis ...................................................... 03-543
Ignition Control .................................................................... 03-565
Evaporative Emissions .............................................................. 03-576
1.6L & 1.8L ENGINE CONTROLS
GENERAL INFORMATION03-3
Description 03-3
Operation 03-3
Electronic Engine Control Input & Output
Device Failure Modes 03-4
Specifications 03-5
Special Tools 03-6
Electrical Schematics 03-9
ECM Connector Pin-Out Table 03-20
DIAGNOSIS & TESTING03-22
Diagnostic Help 03-22
Intermittent DTC Troubleshooting 03-22
Ground Inspection 03-22
Electronic Throttle Control Actuator
Self-Learning Operation Introduction 03-23
Diagnostic Trouble Code (DTC) List 03-23
ECM Power Supply and Ground Circuit
Test 03-28
Power Supply and Ground Circuit 03-28
Diagnostic Trouble Code (DTC) Tests 03-35
P0016 - Camshaft Position-Crankshaft
Position Correlation Error 03-35
P0031 - O
2Sensor 1 Heater Control
Circuit Low 03-45
P0032 - O
2Sensor 1 Heater Control
Circuit High 03-51
P0102 - Mass Or Volume Air Flow
Circuit Low Input 03-57
P0103 - Mass Or Volume Air Flow
Circuit High Input 03-63 P0105 - Manifold Absolute Pressure/
Barometric Pressure Circuit, P0106 -
Manifold Absolute Pressure Or
Barometric Pressure Range/
Performance 03-68
P0107 - Manifold Absolute Pressure Or
Barometric Pressure Low Input,
P0108 - Manifold Absolute Pressure Or
Barometric Pressure High Input 03-73
P0112 - Intake Air Temperature Circuit
Low Input 03-78
P0113 - Intake Air Temperature Circuit
High Input 03-84
P0117 - Engine Coolant Temperature
Circuit Low Input 03-91
P0118 - Engine Coolant Temperature
Circuit High Input 03-96
P0122 - Throttle Position Sensor A
Circuit Low Input 03-101
P0123 - Throttle Position Sensor A
Circuit High Input 03-107
P0132 - O
2Sensor 1 Circuit High
Voltage 03-112
P0171 - Fuel Trim System Too Lean 03-118
P0172 - Fuel Trim System Too Rich 03-131
P0201 - Cylinder 1 - Injector Circuit,
P0202 - Cylinder 2 - Injector Circuit,
P0203 - Cylinder 3 - Injector Circuit,
P0204 - Cylinder 4 - Injector Circuit 03-142
P0221 - Throttle Position Sensor B
Performance 03-149
03
03–1Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The Engine Control Module (ECM) consists of a microcomputer and electrical connectors containing circuits for signal
input, output, power supply and ground. The ECM controls the engine functions.
The following are the input and output components monitored by the ECM. The monitored functions include compo-
nents from the engine, ignition, transaxle, air conditioning, or any other ECM supported subsystem.
ECM Inputs
•Brake Switch Sensor
• Refrigerant Pressure Sensor
• Camshaft Position (CMP) Sensor
• Crankshaft Position (CKP) Sensor
• Engine Coolant Temperature (ECT) Sensor
• Manifold Absolute Pressure (MAP) Sensor (1.6L)
• Air Flow Sensor (1.8L)
• Throttle Position Sensor (Integral with Electronic Throttle Control Actuator)
• Power Steering Switch
• Accelerator Pedal Position (APP) Sensor
• Knock Sensor
• Oxygen Sensor (Upstream & Downstream)
• Vehicle Speed Sensor
• Clutch Pedal Switch (Manual transaxle only)
ECM Outputs
• Canister Control Valve
• Fuel Injectors
• Fuel Pump Relay
• Electronic Throttle Control Actuator
• Ignition Coil
• A/C Compressor
• Cooling Fan
• Oxygen Sensor Heater (Upstream & Downstream)
Operation
The ECM monitors components and circuits, and tests them in various ways depending on the hardware, function,
and type of signal. For example, analog inputs, such as throttle position or engine coolant temperature are typically
checked for opens, shorts and out-of-range values. This type of monitoring is carried out continuously. Some digital
inputs like vehicle speed or crankshaft position rely on rationality checks - checking to see if the input value makes
sense at the current engine operating conditions. These types of tests may require monitoring several components
and can only be carried out under appropriate test conditions.
The ECM is a pre-programmed, microprocessor-based digital computer. It regulates ignition timing, air-fuel ratio,
emission control devices, charging system, certain transmission features, speed control, air conditioning compressor
clutch engagement and idle speed. The ECM can adapt its programming to meet changing operating conditions.
03
03–3Chery 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
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 Compression Gauge
Fuel Pressure Gauge
GENERAL INFORMATION
03
03–7Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ECM Connector Pin-Out Table
ECM PIN-OUT TABLE
PINCIRCUIT IDENTIFICATION PINCIRCUIT IDENTIFICATION
1 (With EOBD)
42Intake Air Temperature Sensor
Upstream Oxygen Sensor Heater
(Without EOBD)
2 Ignition Coil 2 43-
3 GND (Ignition) 44Switched Supply Voltage
4 (With EOBD)
45Switched Supply Voltage
Downstream Oxygen Sensor Heater
(Without EOBD)
5 Ignition Coil 1 46Canister Control Valve
6 Injector 2 47Injector 4
7 Injector 3 48Upstream Oxygen Sensor Heater (With
EOBD)
(Without EOBD)
8 Engine Speed Output 49-
9 Coolant Temperature Output 50Fan Relay Control
10 Fuel Consumption Output 51GND (Signal)
11 EPC Lamp 52-
12 Continuous Supply Voltage 53GND (Signal)
13 Ignition Switch 54 Electronic Throttle Control Actuator
14 EMS Relay (Main Relay) 55Downstream Oxygen Sensor
15 Crankshaft Position Sensor 56-
16 Accelerator Position Sensor 57-
17 Sensor (GND) 58Brake Switch
18 Upstream Oxygen Sensor 59Vehicle Speed Sensor
19 Knock Sensor 1 60A/C Middle Pressure Switch
20 Knock Sensor 2 61GND (Power)
21 Brake Switch 62-
22 -63Switched Supply Voltage
23 Accelerator Sensor 64 Electronic Throttle Control Actuator
24 -65 Electronic Throttle Control Actuator
25 -66 Electronic Throttle Control Actuator
26 -67 Electronic Throttle Control Actuator
27 Injector 1 68Fan Relay Control 2
28 Downstream Oxygen Sensor Heater
(With EOBD) 69Air Compressor Relay
(Without EOBD)
29 -70Fuel Pump Relay
30 -71Diagnostic Link K
31 MIL Lamp 72-
32 Regulated Sensor Supply 3 73Regulated Sensor Supply 2
33 Regulated Sensor Supply 1 74Clutch Pedal Switch
34 Crankshaft Position Sensor 75A/C Stand By
GENERAL INFORMATION
03–20Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DTCDTC DEFINITION
P0032 O
2Sensor Heater Control Circuit (Bank 1 Sensor 1) High
P0036 O
2Sensor Heater Control Circuit (Bank 1 Sensor 2)
P0037 O
2Sensor Heater Control Circuit (Bank 1 Sensor 2) Low
P0038 O
2Sensor Heater Control Circuit (Bank 1 Sensor 2) High
P0053 O
2Sensor Heater Resistance (Bank 1 Sensor 1)
P0054 O
2Sensor Heater Resistance (Bank 1 Sensor 2)
P0101 Mass or Volume Air Flow Circuit Range/Performance (1.8L)
P0102 Mass or Volume Air Flow Circuit Low Input (1.8L)
P0103 Mass or Volume Air Flow Circuit High Input (1.8L)
P0105 Manifold Absolute Pressure or Barometric Pressure Circuit (1.6L)
P0106 Manifold Absolute Pressure or Barometric Pressure Range/Performance (1.6L)
P0107 Manifold Absolute Pressure or Barometric Pressure Low Input (1.6L)
P0108 Manifold Absolute Pressure or Barometric Pressure High Input (1.6L)
P0112 Intake Air Temperature Circuit Low Input
P0113 Intake Air Temperature Circuit High Input
P0116 Engine Coolant Temperature Circuit Range/Performance
P0117 Engine Coolant Temperature Circuit Low Input
P0118 Engine Coolant Temperature Circuit High Input
P0121 Throttle/Pedal Position Sensor A Circuit Range/Performance
P0122 Throttle/Pedal Position Sensor A Circuit Low Input
P0123 Throttle/Pedal Position Sensor A Circuit High Input
P0130 O
2Sensor Circuit Bank 1 - Sensor 1 Malfunction
P0131 O
2Sensor Circuit Bank 1 - Sensor 1 Low Voltage
P0132 O
2Sensor Circuit Bank 1 - Sensor 1 High Voltage
P0133 O
2Sensor Circuit Bank 1 - Sensor 1 Slow Response
P0134 O
2Sensor Circuit Bank 1 - Sensor 1 No Activity Detected
P0136 O
2Sensor Circuit Bank 1 - Sensor 2 Malfunction
P0137 O
2Sensor Circuit Bank 1 - Sensor 2 Low Voltage
P0138 O
2Sensor Circuit Bank 1 - Sensor 2 High Voltage
P0140 O
2Sensor Circuit Bank 1 - Sensor 2 No Activity Detected
P0170 Fuel Trim, Bank 1 Malfunction
P0171 Fuel Trim, Bank 1 System too Lean
P0172 Fuel Trim, Bank 1 too Rich
P0201 Cylinder 1 - Injector Circuit
P0202 Cylinder 2 - Injector Circuit
P0203 Cylinder 3 - Injector Circuit
P0204 Cylinder 4 - Injector Circuit
P0219 Engine Overspeed Condition
P0221 Throttle/Pedal Position Sensor/Switch B Range/Performance
P0222 Throttle/Pedal Position Sensor/Switch B Low Input
P0223 Throttle/Pedal Position Sensor/Switch B High Input
P0261 Cylinder 1 - Injector Circuit Low
P0262 Cylinder 1 - Injector Circuit High
DIAGNOSIS & TESTING
03–24Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DTCDTC DEFINITION
P0605 Internal Control Module ROM Test Error
P0606 ECM Processor
P0627 Fuel PumpAControl Circuit/Open
P0628 Fuel PumpAControl Circuit Low
P0629 Fuel PumpAControl Circuit High
P0645 A/C Clutch Relay Circuit
P0646 A/C Clutch Relay Control Circuit Low
P0647 A/C Clutch Relay Control Circuit High
P0650 Malfunction Indicator Lamp Control Circuit
P0688 EMC/ECM Power Relay Sense Circuit Open
P0691 Cooling Fan 1 Control Circuit Low
P0692 Cooling Fan 1 Control Circuit High
P0693 Cooling Fan 2 Control Circuit Low
P0694 Cooling Fan 2 Control Circuit High
P0700 Transmission Control System Malfunction
P0704 Clutch Switch Input Circuit
P1297 Manufacturer Controlled Computer And Auxiliary Outputs
P1336 Engine Torque Control Adaptation at Limit
P1545 Throttle Position Control Malfunction
P1558 Throttle Actuator Electrical Malfunction
P1559 Idle Speed Control Throttle Position Adaptation Malfunction
P1564 Idle Speed Control Throttle Position Low Voltage During Adaptation
P1565 Idle Speed Control Throttle Position Lower Limit not Attained
P1568 Idle Speed Control Throttle Position Mechanical Malfunction
P1579 Idle Speed Control Throttle Position Adaptation Not Started
P1604 Internal Control Module Driver Error
P1610 Manufacture Controlled Computer and Auxiliary Outputs
P1611 Manufacture Controlled Computer and Auxiliary Outputs
P1612 Manufacture Controlled Computer and Auxiliary Outputs
P1613 Manufacture Controlled Computer and Auxiliary Outputs
P1614 Manufacture Controlled Computer and Auxiliary Outputs
P1651 Manufacture Controlled Computer and Auxiliary Outputs
P2106 Throttle Actuator Control System Forced Limited Power
P2122 Throttle/Pedal Position Sensor/Switch D Circuit Low Input
P2123 Throttle/Pedal Position Sensor/Switch D Circuit High Input
P2127 Throttle/Pedal Position Sensor/Switch E Circuit Low Input
P2128 Throttle/Pedal Position Sensor/Switch E Circuit High Input
P2138 Accelerator Pedal Position Sensor Signal Correlation Error
P2177 System Too Lean off Idle
P2178 System Too Rich off Idle
P2187 System Too Lean at Idle
P2188 System Too Rich at Idle
P2195 O
2Sensor Signal Stuck Lean; Bank 1 Sensor 1
DIAGNOSIS & TESTING
03–26Chery 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.ITEMCONDITIONDATA (DC VOLTAGE)
18 Upstream O
2sensor•
Engine is running
• Warm-up condition Approximately 0.1 V - 0.9
V (Change5-8times in10 seconds periodically)
28 (With EOBD)
4 (Without EOBD) Downstream O
2sensor
heating --
36 Sensor (GND) •
Warm-up condition
• Idle Approximately 0 V
48 (With EOBD)
1 (Without EOBD) Upstream O
2sensor
heating --
55 Downstream O
2sensor•
Engine is running
• Warm-up condition Approximately 100 mV
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION POSSIBLE CAUSE
P0032 O
2sensor 1 heater control
circuit high Engine is running.•
Fuel quality
• Oxygen Sensor
•Harness or connectors
(The sensor circuit is open
or shorted)
• 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 and select view data stream.
• Start engine and warm it up to the normal operating temperature.
• Turn ignition switch off and wait at least 10 seconds.
• Start engine and keep the engine speed 2000 RPM for at least 1 minute.
• Let engine idle for 2 minutes.
• 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.
DIAGNOSIS & TESTING
03
03–53Chery 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.ITEMCONDITIONDATA (DC VOLTAGE)
18 Upstream O
2sensor•
Engine is running
• Warm-up condition Approximately 0.1 V - 0.9
V (Change5-8times in10 seconds periodically)
4 (Without EOBD) 28 (With EOBD) Downstream O
2sensor
heating --
36 Sensor (GND) •
Warm-up condition
• Idle Approximately 0 V
1 (Without EOBD) 48 (With EOBD) Upstream O
2sensor
heating --
55 Downstream O
2sensor•
Engine is running
• Warm-up condition Approximately 100 mV
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION POSSIBLE CAUSE
P0132 O
2sensor 1 (upstream)
circuit high voltage Engine is running•
Fuel quality
• O2Sensor 1 (upstream)
• Harness or connectors
(The sensor circuit is open
or shorted)
• 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.
• Turn ignition switch off and wait at least 10 seconds.
• Start engine and keep the engine speed 2000 RPM for at least 1 minute.
• Let engine idle for 2 minutes.
• 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.
DIAGNOSIS & TESTING
03–11 4Chery Automobile Co., Ltd.