Downloaded from www.Manualslib.com manuals search engine Cylinder Head Gasket Test
•A cylinder head gasket leak can be located between adjacent cylinders, between a cylinder and the adjacent
water jacket or from an oil passage to the exterior of the engine.
• Possible indications of the cylinder head gasket leaking between adjacent cylinders are:
Loss of engine power
Engine misfiring
Poor fuel economy
• Possible indications of the cylinder head gasket leaking between a cylinder and an adjacent water jacket are:
Engine overheating
Loss of coolant
Excessive steam (white smoke) emitting from exhaust
Coolant foaming
Engine Oil Pressure Test
1. Check the engine oil level.
2. Disconnect the oil pressure switch electrical connector.
3. Remove the oil pressure switch.
4. Install the mechanical oil pressure gauge.
5. Start the engine and warm to normal operating temperature.
6. After the engine has been warmed up, check that the oil pressure is within the specifications. Standard Oil Pressure: At 750 ± 50 RPM: 0.8 MPa
7. Stop the engine.
8. Remove the oil pressure gauge.
9. Apply the specified sealant to the thread (1) of oil pressure switch.
10. Install the oil pressure switch (Tighten: Oil pres- sure switch to 10 ± 2 N·m).
DIAGNOSIS & TESTING
LTSM020146
02–166Chery Automobile Co., Ltd.
Downloaded from www.Manualslib.com manuals search engine 4. Using special tool MD-998705 (1), install the frontbearing.
NOTE :
Align the oil holes in the front bearing and the cylinder
block.
Oil Filter
Removal & Installation
NOTE :
The following special tools are required to perform the repair procedure:
• MB-991828 - Oil Filter Wrench
• MB-991396 - Oil Filter Wrench
WARNING!
Prolonged and repeated contact with engine oil will harm your skin. If engine oil is spilled on your skin, wash it
off immediately with water. In addition, used engine oil contains potentially harmful contaminants which may
cause skin cancer. Always use adequate skin protection when performing vehicle service.
CAUTION:
When servicing the oil filter, install the special tool against the base of the filter to avoid deforming
the filter.
1. Start the engine and allow it to warm up to normal operating temperature.
2. Stop the engine and remove the engine oil filler cap.
3. Raise and support the vehicle.
4. Remove the oil pan drain plug and drain the oil out of the engine.
WARNING!
The engine oil is hot and can burn your skin.
5. Remove the under cover.
ON-VEHICLE SERVICE
LTSM020187
02–212Chery 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 Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINALNO. ITEM
CONDITION DATA (DC
VOLTAGE)
32 Regulated sensor
supply
Ignition switch: ON -
Approximately 5 V
38 Electronic throttle
control actuator
(Position sensor) •
Engine stopped
• Accelerator pedal:
Fully released 4.24 V
• Engine stopped
• Accelerator pedal:
Fully depressed 0.72 V
54 Electronic throttle
control actuator •
Engine stopped
• Accelerator pedal:
Fully released 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 4.62 V
64 Motor 4
-12Vor0V
65 Motor 3
66 Motor 2
12Vor0V
67 Motor 1
78 Sensor (GND) Approximately 0 V
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P0122 Throttle Position
Sensor (TPS) Acircuit low input •
Ignition switch:
ON
• Engine: Running Signal output is
below minimum
acceptable range for
a few seconds
continuously. •
Throttle Position
Sensor (TPS) or
misalignment
• Harness or
connectors (Signal
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 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 :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03–102Chery 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)
32 Regulated sensor
supply
Ignition switch: ON -
Approximately 5 V
38 Electronic throttle
control actuator
(Position sensor) •
Engine stopped
• Accelerator pedal:
Fully released 4.24 V
• Engine stopped
• Accelerator pedal:
Fully depressed 0.72 V
54 Electronic throttle
control actuator •
Engine stopped
• Accelerator pedal:
Fully released 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 4.62 V
78 Sensor (GND)
-Approximately 0 V
64 Motor 4
12Vor0V
65 Motor 3
66 Motor 2
12Vor0V
67 Motor 1
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P0123 TPS A circuit high
input •
Ignition switch:
ON
• Engine: Running Signal output is
above maximum
acceptable range for
a few seconds
continuously. •
Throttle Position
Sensor (TPS) or
misalignment
• Harness or
connectors (The
sensor signal 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 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 :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03–108Chery 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)
32 Regulated sensor
supply 2
Ignition switch: ON -
Approximately 5 V
38 Electronic throttle
control actuator
(Position sensor) •
Engine stopped
• Accelerator pedal:
Fully released 4.24 V
• Engine stopped
• Accelerator pedal:
Fully depressed 0.72 V
54 Electronic throttle
control actuator •
Engine stopped
• Accelerator pedal:
Fully released 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 4.62 V
78 Sensor (GND)
-Approximately 0 V
64 Motor 4
0 V or 12 V
65 Motor 3
66 Motor 2
12Vor0V
67 Motor 1
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION
POSSIBLE CAUSE
P0221 Throttle Position
Sensor (TPS) B performance Ignition switch on or
after engine start Rationally incorrect
voltage is sent to
ECM compared with
the signals from
TPS1 and TPS2. •
Electronic throttle
control actuator
(TPS1 and TPS2)
• Harness or
connectors (The
sensor signal circuit
is open or shorted)
• Accelerator pedal
position sensor 2
• 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.
• 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
03–151Chery 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)
32 Regulated sensor
supply 2
Ignition switch on -
Approximately 5 V
38 Electronic throttle
control actuator
(Position sensor) •
Engine stopped
• Accelerator pedal:
Fully released 4.24 V
• Engine stopped
• Accelerator pedal:
Fully depressed 0.72 V
54 Electronic throttle
control actuator •
Engine stopped
• Accelerator pedal:
Fully released 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 4.62 V
78 Sensor (GND)
-Approximately 0 V
64 Motor 4
12Vor0V
65 Motor 3
66 Motor 2
12Vor0V
67 Motor 1
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P1545 Throttle position
control malfunction Ignition switch on or
after engine start. Rationally incorrect
voltage is sent to
ECM compared with the signals from
TPS1 and TPS2. •
Electronic throttle
control actuator
(TPS1 and TPS2)
• Harness or
connectors
• Accelerator pedal
position sensor 2
• 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 then select view DTC.
• 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
03–204Chery 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)
32 Regulated sensor
supply 2
Ignition switch: ON -
Approximately 5 V
33 Regulated sensor
supply 1 -
Approximately 5 V
16 Accelerator Pedal
Position Sensor 1
(APPS1) •
Engine stopped
• Accelerator pedal:
Fully released 0.72 - 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 3.95 V
40 Accelerator Pedal
Position Sensor 2
(APPS2) •
Engine stopped
• Accelerator pedal:
Fully released 0.36 - 0.37 V
• Engine stopped
• Accelerator pedal:
Fully depressed 1.97 V
35 Sensor (GND) -Approximately 0 V
36 Sensor (GND) -Approximately 0 V
73 Regulated sensor
supply 1 -
Approximately 5 V
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P2138 Accelerator pedal
position sensor
performance Ignition switch on or
after engine start Rationally incorrect
voltage is sent to
ECM compared with
the signals from
APPS1 and APPS2. •
Accelerator pedal
position sensor 1
and 2
• Harness or
connectors
• Electronic throttle
control actuator
(TPS1 and TPS2)
• 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 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 :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03–212Chery Automobile Co., Ltd.