2009 CHERY TIGGO relay

Downloaded from www.Manualslib.com manuals search engine 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 A/C CLUTCH RELAY CONTROL CIRCUIT
• Turn off A/C switch.
• Check A/C clutch relay control circuit supply voltage
between ECM terminal 69 and ground in the ECM
electrical connector E-001.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 4.
No
>>Go to the next step.
3.DETECT MALFUNCTIONING PART
• Check the following:
Fuse FB18, SB2
Front fuse and relay box K, E, J
A/C compressor relay, EMS relay (R2)
Check harness for an open or short between ECM terminal 69 and fuse 12.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
DIAGNOSIS & TESTING
LTSMD030065
03–200Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.0L ENGINE CONTROLS
GENERAL INFORMATION03-229
Description 03-229
Operation 03-229
Electronic Engine Control Input & Output
Device Failure Modes 03-230
Specifications 03-231
Special Tools 03-232
Electrical Schematics 03-234
ECM Connector Pin-Out Table 03-245
DIAGNOSIS & TESTING03-247
Diagnostic Help 03-247
Ground Inspection 03-247
Electronic Throttle Control Actuator
Self-Learning Operation Introduction 03-247
Diagnostic Tools 03-248
Diagnostic Trouble Code (DTC) List 03-250
ECM Power Supply and Ground Circuit
Test 03-254
Power Supply And Ground Circuit
Diagnostic Check 03-254
Diagnostic Trouble Code (DTC) Tests 03-261
P0016 - Camshaft Position-Crankshaft
Position Correlation Error 03-261
P0031 - O
2Sensor 1 Heater Control
Circuit Low 03-272
P0032 - O
2Sensor 1 Heater Control
Circuit High 03-277
P0102 - Mass Or Volume Air Flow
Circuit Low Input 03-282
P0103 - Mass Or Volume Air Flow
Circuit High Input 03-288
P0112 - Intake Air Temperature Circuit
Low Input 03-293
P0113 - Intake Air Temperature Circuit
High Input 03-297
P0117 - Engine Coolant Temperature
Circuit Low Input 03-301
P0118 - Engine Coolant Temperature
Circuit High Input 03-305
P0122 - Throttle Position Sensor A
Circuit Low Input 03-310
P0123 - Throttle Position Sensor A
Circuit High Input 03-316
P0132 - O
2Sensor Circuit 1 High
Voltage 03-322
P0171 - Fuel Trim System Too Lean 03-326
P0172 - Fuel Trim System Too Rich 03-336
P0201 - Cylinder 1 - Injector Circuit,
P0202 - Cylinder 2 - Injector Circuit,
P0203 - Cylinder 3 - Injector Circuit,
P0204 - Cylinder 4 - Injector Circuit 03-345
P0221 - Throttle Position Sensor B
Performance 03-352 P0261 - Cylinder 1 Injector Circuit Low,
P0264 - Cylinder 2 Injector Circuit Low,
P0267 - Cylinder 3 Injector Circuit Low,
P0270 - Cylinder 4 Injector Circuit Low 03-359
P0262 - Cylinder 1 Injector Circuit High,
P0265 - Cylinder 2 Injector Circuit High,
P0268 - Cylinder 3 Injector Circuit High,
P0271 - Cylinder 4 Injector Circuit High 03-366
P0321 - Distributor Engine Speed In
Phase Circuit Performance 03-373
P0324 - Knock Control System Error 03-378
P0343 - Camshaft Position Sensor
Circuit High Input 03-383
P0444 - Evaporative Emission System
Purge Control Valve Circuit Open 03-389
P0506 - Idle Control System RPM
Lower Than Expected 03-394
P0604 - Internal Controller Module
Random Access Memory (RAM) Error,
P0605 - Internal Controller Module
ROM Test Error, P0606 - ECM
Processor 03-396
P0602 - ECM Programming Error 03-398
P0645 - A/C Clutch Relay Circuit 03-400
P1545 - Throttle Position Control
Performance 03-405
P2138 - Pedal Position Sensor
Performance 03-413
U0001 - High Speed CAN Defective 03-420
ON-VEHICLE SERVICE03-427
Engine Coolant Temperature (ECT)
Sensor 03-427
Description 03-427
Operation 03-427
Removal & Installation 03-427
Knock Sensor 03-428
Description 03-428
Operation 03-428
Removal & Installation 03-428
Oxygen Sensor 03-428
Description 03-428
Operation 03-428
Upstream Oxygen Sensor 03-429
Downstream Oxygen Sensor 03-429
Removal & Installation - Upstream
Oxygen Sensor 03-429
Removal & Installation - Downstream
Oxygen Sensor 03-429
Crankshaft Position (CKP) Sensor 03-430
Description 03-430
Operation 03-430
Removal & Installation 03-430
03
03–227Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The Engine Control Module (ECM) utilizes integrated circuitry and information carried on the Controller Area Network
(CAN) data bus along with many hard wired inputs to monitor many sensors and switches inputs throughout the
vehicle. In response to those inputs, the internal circuitry and programming of the ECM allow it to control and inte-
grate many electronic functions and features of the vehicle through both hard wired outputs and the transmission of
electronic message outputs to other electronic modules in the vehicle over the CAN data bus.
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
• A/C Pressure Switch
• Camshaft Position (CMP) Sensor
• Crankshaft Position (CKP) Sensor
• Engine Coolant Temperature (ECT) Sensor
• Intake Air Temperature (IAT) Sensor
• Air Flow Sensor
• Throttle Position Sensor (integral with Electronic Throttle Control Actuator)
• Power Steering Switch
• Accelerator Pedal Position (APP) Sensor
• Knock Sensor
• Oxygen Sensor (Upstream & Downstream)
• 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 heating coil (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
03–229Chery 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 59-
19 Knock Sensor 1 60A/C Middle Pressure Switch
20 Knock Sensor 2 61GND (Power)
21 Brake Switch 62CAN-H
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 74-
34 Crankshaft Position Sensor 75A/C Stand By
GENERAL INFORMATION
03
03–245Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DTCDTC DEFINITION
P0537 A/C Evaporator Temperature Sensor Circuit Low
P0538 A/C Evaporator Temperature Sensor Circuit High
P0560 System Voltage Malfunction
P0562 System Voltage Low Voltage
P0563 System Voltage High Voltage
P0571 Brake SwitchACircuit
P0601 Internal Control Module EEPROM Error
P0602 Control Module Programming Error
P0604 Internal Control Module Random Access Memory (RAM) Error
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
DIAGNOSIS & TESTING
03–252Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Check reference values between ECM terminals and ground under the following conditions:
ECM Power Supply Circuits
TERMINAL NO.ITEMCONDITIONDATA (DC VOLTAGE)
12 Battery -Battery Voltage (11 - 14 V)
13 Ignition switch Ignition switch: ON Battery Voltage (11 - 14 V)
Ignition switch: OFF Approximately 0 V
14 ECM main relay •
Ignition switch: OFF
• More than a few
seconds after turning ignition switch OFF Battery Voltage (11 - 14 V)
44 Power supply for ECM Ignition switch: ON Battery Voltage (11 - 14 V)
45
63
DIAGNOSIS & TESTING
03
03–255Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors C-103, E-103, terminal 14
Front fuse and relay box connector A
Fuse 17
• Check harness for open or short between ECM and fuse.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
4.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten one ground screw on the body.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace ground connections.
5.CHECK ECM GROUND CIRCUIT FOR AN OPEN OR SHORT
• Disconnect ECM harness connector.
• Check harness continuity between ECM terminals 3, 51, 53, 61, 80 and ground.
• Continuity should exist.
• Check harness for short to power.
Is the check result normal?
Ye s>>Go to step 7.
No
>>Go to the next step.
6.DETECT MALFUNCTIONING PART
• Check harness for open or short between ECM terminals 3, 51, 53, 61, 80 and ground.
• Check harness for an open or short to power in harness or connectors.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for an open or short to power in harness or connectors.
DIAGNOSIS & TESTING
03–258Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK ECM POWER SUPPLY CIRCUIT - (2)
• Turn ignition switch on and then off.
• Check voltage between ECM terminals 44, 45, 63
and ground.
• Voltage: Turn the ignition

switch on and battery
voltage should exist. Turning the ignition switch


OFF, battery voltage will exist for a few seconds,
then drop to approximately 0 V.
Is the check result normal?
Ye s>>Check the starting system.
No
>>Go to the next step.
8.CHECK THE STARTER RELAY CONTROL CIRCUIT
• Turn ignition switch OFF. Wait for at least 10 sec-
onds.
• Check voltage between ECM terminal 14 and


ground.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Go to step 10.
9.CHECK ECM POWER SUPPLY CIRCUIT - (3)
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector F.
• Check harness continuity between ECM terminals 44, 45, 63 and front fuse and relay box terminal F3.
• Continuity should exist.
• Check harness for short to ground and short to power.
Is the check result normal?
Ye s>>Go to step 12.
No
>>Repair circuit for an open or short to power or short to ground in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030062
LTSMD030063
03
03–259Chery Automobile Co., Ltd.