2009 CHERY TIGGO sensor

Downloaded from www.Manualslib.com manuals search engine Exhaust Manifold
Removal & Installation
1. Remove the bolts attaching the exhaust manifold heat shield.(Tighten: Exhaust manifold heat shield bolts to 14 N·m)
2. Remove the exhaust manifold heat shield.
3. Remove the three bolts securing the exhaust manifold to the catalytic converter assembly. (Tighten: Exhaust manifold to catalytic converter bolts to 49 ± 5 N·m)
4. Disconnect the catalytic converter assembly from the manifold.
5. Remove the exhaust manifold nuts. (Tighten: Exhaust manifold nuts to 29 ± 3 N·m)
6. Remove the exhaust manifold from the cylinder head.
7. Remove and discard exhaust manifold gasket.
1 - Exhaust Manifold Heat Shield
2 - Engine Hanger
3 - Oxygen Sensor4 - Exhaust Manifold
5 - Exhaust Manifold Gasket
ON-VEHICLE SERVICE
LTSM020179
02–200Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 8. Installation is in the reverse order of removal.
Installation Notes:
• Clean all surfaces of manifold and cylinder head.
• Install a new exhaust manifold gasket during installation.
Intake Manifold
Removal & Installation
1. Disconnect the negative battery cable.
1 - Inlet Manifold Gasket
2 - Knock Sensor
3 - Coolant Hose
4 - Coolant Hose
5 - Coolant Temperature Sensor6 - Coolant Outlet Fitting
7 - Intake Manifold Support Bracket
8 - Intake Manifold
9 - Engine Hanger
ON-VEHICLE SERVICE
LTSM020178
02
02–201Chery Automobile Co., Ltd.

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 P0261 - Cylinder 1 Injector Circuit Low,
P0264 - Cylinder 2 Injector Circuit Low,
P0267 - Cylinder 3 Injector Circuit Low,
P0270 - Cylinder 4 Injector Circuit Low 03-157
P0262 - Cylinder 1 Injector Circuit High,
P0265 - Cylinder 2 Injector Circuit High,
P0268 - Cylinder 3 Injector Circuit High,
P0271 - Cylinder 4 Injector Circuit High 03-164
P0321 - Distributor Engine Speed In
Phase Circuit Performance 03-171
P0324 - Knock Control System Error 03-177
P0343 - Camshaft Position Sensor
Circuit High Input 03-181
P0444 - Evaporative Emission System
Purge Control Valve Circuit Open 03-187
P0506 - Idle Control System RPM
Lower Than Expected 03-191
P0601 - Internal Control Module
Memory Check Sum Error, P0604 -
Internal Controller Module Random
Access Memory (RAM) Error, P0605 -
Internal Controller Module ROM Test
Error, P0606 - ECM Processor 03-193
P0602 - ECM Programming Error 03-195
P0645 - A/C Clutch Relay Circuit 03-197
P1545 - Throttle Position Control
Malfunction 03-202
P2138 - Pedal Position Sensor
Performance 03-210
ON-VEHICLE SERVICE03-217
Engine Coolant Temperature (ECT)
Sensor 03-217
Description 03-217
Operation 03-217
Removal & Installation 03-217
Knock Sensor 03-218
Description 03-218
Operation 03-218
Removal & Installation 03-218
Oxygen Sensor 03-218
Description 03-218
Operation 03-218
Upstream Oxygen Sensor 03-219
Downstream Oxygen Sensor 03-219Removal & Installation - Upstream
Oxygen Sensor
03-219
Removal & Installation - Downstream
Oxygen Sensor 03-219
Crankshaft Position (CKP) Sensor 03-220
Description 03-220
Operation 03-220
Removal & Installation 03-220
Camshaft Position (CMP) Sensor 03-220
Description 03-220
Operation 03-221
Removal & Installation 03-221
Vehicle Speed Sensor 03-221
Description 03-221
Operation 03-221
Removal & Installation 03-221
Accelerator Sensor 03-221
Description 03-221
Operation 03-222
Removal & Installation 03-222
Manifold Absolute Pressure Sensor -
1.6L 03-222
Description 03-222
Operation 03-222
Removal & Installation 03-222
Air Flow Sensor - 1.8L 03-223
Description 03-223
Operation 03-223
Removal & Installation 03-223
Accelerator Pedal Position Sensor 03-224
Description 03-224
Operation 03-224
Removal & Installation 03-224
Electronic Throttle Control Actuator 03-225
Description 03-225
Operation 03-225
Removal & Installation 03-225
Engine Control Module (ECM) 03-226
Description 03-226
Operation 03-226
Removal & Installation 03-226
03–2Chery 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 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.