coolant 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 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 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.

Downloaded from www.Manualslib.com manuals search engine PINCIRCUIT IDENTIFICATION PINCIRCUIT IDENTIFICATION
35 Sensor (GND) 76Power Steering Switch
36 Sensor (GND) 77Headlamp Switch
37 Manifold Absolute Pressure Sensor (With
1.6L Engine) 78Sensor (GND)
Air Flow Sensor (With 1.8L Engine)
38 Electronic Throttle Control Actuator
(Position Sensor) 79
Camshaft Position Sensor
39 Engine Coolant Temperature Sensor 80 GND (Power)
40 Accelerator Pedal Position Sensor 81 -
41 -
GENERAL INFORMATION
03
03–21Chery 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 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 P0117 - Engine Coolant Temperature Circuit Low Input
DIAGNOSIS & TESTING
LTSMW030053T
03
03–91Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINALNO. ITEM
CONDITION DATA (DC
VOLTAGE)
17 Sensor (GND)
Ignition switch: ON -
Approximately 0 V
39 Engine Coolant
Temperature (ECT) sensor ECT: 59°C
1.89 V
ECT: 78°C 1.25 V
ECT: 90°C 0.94 V
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P0117 Engine Coolant
Temperature (ECT) circuit low input Ignition switch on or
after engine start Signal output is
below minimum
acceptable range for
a few seconds
continuously. •
ECT 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.
• Start engine and warm it to normal operating temperature, then select view DTC and data stream.
• 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 03 Electronic Engine Controls for more information.
NOTE :
• Before performing this DTC diagnostic procedure, verify that the engine coolant temperature is normal.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03–92Chery Automobile Co., Ltd.