2009 CHERY TIGGO engine

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•Diagnostic Scan Tool X-431
• Digital Multimeter
• Jumper Wire
Diagnostic Trouble Code (DTC) List
Instrument Cluster DTC List
DTC DTC DEFINITION
U0303 Fuel Sensor O/C or Shorted To Supply
U0303 Fuel Sensor Shorted To Ground
U040F Temperature Sensor O/C or Shorted To Supply
U040F Temperature Sensor Shorted To Ground
U029C Battery Over Voltage Error
U029C Battery Under Voltage Error
U050F EEPROM Checksum Error
DIAGNOSIS & TESTING
15
15–65Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Diagnostic Trouble Code (DTC) Tests
U029C - Battery Over Voltage Error
U029C - Battery Under Voltage Error
DIAGNOSIS & TESTING
LTSMW150037T
15–66Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
LTSMW150038T
15
15–67Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine On Board Diagnostic Logic
•Self-diagnosis detection logic.
DTC NO. DTC
DEFINITION DTC
DETECTION CONDITION DTC SET CONDITION
POSSIBLE
CAUSE
U029C Battery over
voltage error
Turn ignitionswitch on Instrument Cluster (IC) detected that
the battery voltage is excessively
high.
•
Charge system
• Instrument
Cluster (IC)
U029C Battery under
voltage error Instrument Cluster (IC) detected that
the battery voltage is excessively
low. •
Battery
• Charge system
• Harness or
connector
• Instrument
Cluster (IC)
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, select view, record and erase DTC.
• Start engine and warm it up to the normal operating temperature.
• Select view DTC and data stream.
• If the DTC is detected, the 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 15 Body & Accessories for more information).
•
NOTE :
• Inspect the vehicle for aftermarket accessories that may exceed the Generator System output.
• Inspect the fuses. If an open fuse is found, use the wiring schematics as a guide and inspect the wiring and
connectors for damage.
• Troubleshoot any Engine Control Module (ECM) charging/cranking DTCs before proceeding.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
15–68Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Diagnostic Procedure
1.CHECK GROUND CONNECTION
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 15 Body & Accessories).
• Inspect ground connection C-201 mounting position (See Vehicle Wiring Harness Information - Main Harness in
Section 16 Wiring).
Is the ground connection OK?
Ye s>>Go to the next step.
No
>>Repair or replace ground harness or connections.
2.CHECK INSTRUMENT CLUSTER (IC) ELECTRICAL CONNECTOR
• Disconnect Instrument Cluster (IC) electrical connector.
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Ye s>>Go to the next step.
No
>>Repair or replace the electrical connector as necessary.
3.CHECK INSTRUMENT CLUSTER (IC) POWER SUPPLY
• Turn ignition switch on.
• If the vehicle is not equipped with Mitsubishi 2.4L
engine system, check IC power supply between
terminal 11, 13 and terminal 5 in the IC electrical
connector C-001 terminal side.
• If the vehicle is equipped with Mitsubishi 2.4L
engine system, check IC power supply between
terminal 11 and terminal 2 in the IC electrical con-
nector C-001 terminal side.
Is the voltage between9-17V?
Ye s>>Replace the IC.
No
>>Go to the next step.
DIAGNOSIS & TESTING
LTSMD150007
LTSMD150008
15
15–69Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.CHECK SYSTEM VOLTAGE
• Start the engine, raise the speed over 1000 RPM.
• Measure the charging voltage with the voltmeter at the battery positive and negative terminals.
Is the voltage less than 9 V?
Ye s>>Check the charging system.
No
>>Go to the next step.
5.CHECK THE BATTERY
• Start the engine, raise the speed over 1000 RPM for a few minutes.
• Turn ignition switch off.
• Measure the voltage drop with the voltmeter at the battery positive and negative terminals while cranking the
engine.
• Battery voltage should be more than approximate 9 V.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Charge or replace the battery.
6.CHECK INSTRUMENT CLUSTER (IC) SUPPLY CIRCUIT
• Disconnect the battery negative cable.
• Disconnect the battery positive cable.
• Measure the resistance between IC terminal 11, 13 and battery positive cable.
• Continuity should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Check fuse.
Check the harness open or short to ground.
Check related components.
7.CHECK SYSTEM VOLTAGE
• Start the engine, raise the speed over 1000 RPM.
• Measure the charging voltage with the voltmeter at the battery positive and negative terminals.
Is the voltage more than 17 V?
Ye s>>Replace the AC generator.
No
>>Go to the next step.
DIAGNOSIS & TESTING
15–70Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 8.CHECK DTC
• With the X-431 scan tool, read IC DTCs.
• Refer to DTC Confirmation Procedure.
Is the DTC U029C still present?
Ye s>>Replace IC.
No
>>The system is now operating properly.
Reassemble the vehicle and verify the customers complaint is repaired.
DIAGNOSIS & TESTING
15
15–71Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine U040F - Temperature Sensor Shorted To Supply
U040F - Temperature Sensor Shorted To Ground (With Mitsubishi 2.4L Engine
System)
Instrument Cluster (IC)
DIAGNOSIS & TESTING
LTSMW150039T
15–72Chery Automobile Co., Ltd.