2009 CHERY TIGGO ELECTRONIC CONTROLS

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CHERY
Tiggo
Service Manual
FOREWORD
This manual contains on-vehicle service
and diagnosis procedures for the Chery Tiggo.
A thorough familiarization with this manual
is important for proper repair and
maintenance. It should always be kept in a
handy place for quick and easy reference.
The contents of this manual, including
drawings and specifications, are the latest
available at the time of printing. As
modifications affecting repair or
maintenance occur, relevant information
supplementary to this volume will be made
available at Chery dealers. This manual
should be kept up-to-date.
Chery Automobile Company, Ltd. reserves the
right to alter the specifications and
contents of this manual without obligation
or advance notice.
All rights reserved. No part of this book
may be reproduced or used in any form or
by any means, electronic or mechanical—
including photocopying and recording and the
use of any kind of information storage and
retrieval system—without permission in
writing.
NOTE:
This Tiggo service manual only applies to the fol-
lowing engines and transaxles:
• 1.6L with M/T
• 1.8L with M/T
• 2.0L with A/T
• 2.4L with A/T
Chery Automobile Company, Ltd.Wuhu, Anhui Province, CHINA
CONTENTS
Title Section
GENERAL INFORMATION01
ENGINE02
ELECTRONIC ENGINE CONTROLS03
FUEL DELIVERY04
STARTING & CHARGING05
COOLING06
EXHAUST07
TRANSAXLE & TRANSFER CASE08
DRIVELINE & AXLE09
SUSPENSION10
STEERING11
BRAKES12
HEATING & AIR CONDITIONING13
RESTRAINTS14
BODY & ACCESSORIES15
WIRING16
ALPHABETICAL INDEXAI
© 2009 Chery Automobile Co., Ltd.
PRINTED NOVEMBER, 2009

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 Cylinder Head Cover
Removal & Installation
1. Disconnect the negative battery cable.
2. Remove the accelerator cable bracket bolts (1).(Tighten: Accelerator cable bracket bolts to 10 N·m)
3. Remove the accelerator cable.
4. Remove the air flow hose clamp (2) and discon- nect the air flow hose.
5. Remove the spark plug wires (3) and set them aside (See Spark Plug Wire Removal & Installation
in Section 03 Electronic Engine Controls).
6. Remove the PCV tube (5).
7. Remove the cylinder head cover bolts (4). (Tighten: Cylinder head cover bolts to 11 N·m)
8. Remove the cylinder head cover from the cylinder head.
9. Remove the cylinder head cover gasket if necessary.
10. Installation is in the reverse order of removal.
NOTE :
Install a new cylinder head cover gasket during installation.
ON-VEHICLE SERVICE
LTSM020175
02–170Chery 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 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 Electrical Schematics
Electronic Engine Controls (Page 1 of 11)
GENERAL INFORMATION
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03–9Chery Automobile Co., Ltd.

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GENERAL INFORMATION
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03–10Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Electronic Engine Controls (Page 3 of 11)
GENERAL INFORMATION
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03
03–11Chery Automobile Co., Ltd.