2009 CHERY TIGGO ABS

Downloaded from www.Manualslib.com manuals search engine Antilock Brake System (ABS) Module Connector Pin-Out Table
ABS Hydraulic Control Module Connector Pin-Out Table
PINCIRCUIT IDENTIFICATION PINCIRCUIT IDENTIFICATION
1 Front Wheel Speed Sensor LH + 14-
2 Front Wheel Speed Sensor LH - 15Decelerator Sensor (GND)
3 -16ABS Lamp
4 Ignition Switch 17-
5 Rear Wheel Speed Sensor LH + 18Brake Switch
6 Rear Wheel Speed Sensor LH - 19Front Wheel Speed Sensor RH +
7 Diagnostic Link K 20Front Wheel Speed Sensor RH -
8 GND (Power) 21-
9 Continuous Supply Voltage (Motor) 22 Rear Wheel Speed Sensor RH +
10 -23Rear Wheel Speed Sensor RH -
11 -24GND (Motor)
12 -25Continuous Supply Voltage
13 Decelerator Sensor (G) --
GENERAL INFORMATION
12–44Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Diagnostic Help
Diagnostic Help
1. The X-431 scan tool connects to the Data Link Connector (DLC) and communicates with the vehicle electronicmodules through the vehicle data circuits.
2. Confirm that the malfunction is current and carry-out the diagnostic tests and repair procedures.
3. If the Diagnostic Trouble Code (DTC) cannot be deleted, it is a current fault.
4. Use a digital multimeter to perform voltage readings on electronic systems.
5. Refer to any Technical Bulletins that may apply to the failure.
6. Visually inspect the related electrical wiring harness.
7. Perform a voltage drop test on the related circuits between the suspected component and the ABS module.
8. Inspect and clean all ECM, ABS, engine, and chassis grounds that are related to the most current DTC.
9. If numerous trouble codes were set, use an electrical schematic and look for any common ground circuits or voltage supply circuits that may apply to the DTC.
10. For any wheel speed sensor DTCs, inspect for dirt/metal debris.
11. Use the scan tool to perform a System Test if one applies to the failed component.
Intermittent DTC Troubleshooting
If the failure is intermittent perform the following:
• Check for loose connectors.
• Look for any chafed, pierced, pinched, or partially broken wires.
• Monitor the scan tool data relative to this circuit.
• Wiggle the related electrical wiring harness and connectors while looking for an interrupted signal on the
affected circuit.
• If possible, try to duplicate the conditions under which the DTC set.
• Look for the data to change or for the DTC to reset during the wiggle test.
• Look for broken, bent, pushed out or corroded terminals.
• Inspect the sensor and mounting area for any condition that would result in an incorrect signal, such as dam-
age, foreign material.
• A data recorder, and/or oscilloscope should be used to help diagnose intermittent conditions.
• Remove the ABS module from the troubled vehicle and install in a new vehicle and test. If the DTC cannot be
deleted, the ABS module is malfunctioning. If the DTC can be deleted, return the ABS module to the original
vehicle.
Ground Inspection
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground connec-
tions are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can become an unwanted
resistance. This added resistance can affect the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drastically
affect an electronically controlled circuit. A poor or corroded ground can affect the circuit. Perform the following when
inspecting a ground connection:
1. Remove the ground bolt or screw.
2. Inspect all mating surface for tarnish, dirt, rust, etc.
3. Clean as required to assure good contact.
4. Reinstall bolt or screw securely.
5. Inspect for add-onaccessories which may be interfering with the ground circuit.
6. If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and providing a good ground path. If multiple wires are crimped to one eyelet, make
sure no excess wire insulation has been crimped creating a bad ground.
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12–45Chery 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
C1101 Battery Voltage High
(Above 18 V)
Ignition switch: ON ABS module
detected that the
battery voltage is
excessively high.
•
Charging system
• ABS module
C1102 Battery Voltage Low
(Below 9.5 V) ABS module
detected that the
battery voltage is
excessively low.•
Battery
• Harness is shorted
• Charging system
• ABS module
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 ABS module.
• Start the engine and warm it to normal operating temperature.
• Turn ignition switch off and wait for a few seconds.
• Turn ignition switch ON then select view DTC.
• 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 12 Brakes for more information.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 12 Brakes).
• The 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).
• The ground connections A-201 and A-206 mounting position (See Vehicle Wiring Harness Layout - Engine
Room Harness With 2.0L & 2.4L Engine in Section 16 Wiring).
Are the ground connections OK?
Ye s>>Go to the next step.
No
>>Repair or replace the ground connections.
2.CHECK ABS MODULE ELECTRICAL CONNECTOR
• Disconnect the ABS module 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.
DIAGNOSIS & TESTING
12
12–51Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.CHECK ABS MODULE POWER SUPPLY
• Turn ignition switch on
• Check ABS module power supply between terminal
4 and terminal 8, 24 in the ABS module electrical
connector A-020 or E-002 terminal side.
Is the voltage between 9.4 - 17 V?
Ye s>>Replace the ABS module.
No
>>If the voltage is less than 9.4 V, go to
step 4.
If the voltage is more than 17 V, go to
step 7.
4.CHECK SYSTEM VOLTAGE
• Connect ABS module connector.
• Start the engine, raise the speed over 1000 RPM.
• Measure the charging voltage at the battery positive and negative terminals.
Is the voltage less than 9.4 V?
Ye s>>Replace the AC generator.
No
>>Go to the next step.
5.CHECK THE BATTERY
• Start the engine, raise the engine speed to over 1000 RPM for a few minutes.
• Turn ignition switch off.
• Measure the voltage drop at the battery positive and negative terminals while cranking the engine.
• Battery voltage should be more than approximately 9.4 V.
Is the check result normal?
Ye s>>Go to step 6.
No
>>Charge or replace the battery.
6.CHECK ABS MODULE POWER SUPPLY CIRCUIT
• Measure the continuity between the ABS module terminal 4 and the battery positive terminal.
• Continuity should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Check fuse.
Check the harness.
Check all related components.
DIAGNOSIS & TESTING
LTSMD120001
12–52Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK SYSTEM VOLTAGE
• Maintain engine speed to over 1000 RPM.
• Measure the charging voltage 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.
8.CHECK DTC
• With the X-431 scan tool, read ABS module DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC C1101 or C1102 still present?
Ye s>>Replace the ABS module.
No
>>The system is now operating properly.
Erase all codes and test drive the vehicle to verify the repair is complete.
DIAGNOSIS & TESTING
12
12–53Chery 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
C1200 Left front wheel
speed sensor circuit open or shorted •
Ignition switch:
ON
• Vehicle: Running ABS module
detected that the
Left Front wheel
speed sensor input
signal to ABS
module is open or
shorted. •
Left Front wheel
speed sensor
• Harness is open or
shorted
• ABS module
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 ABS module.
• Cycle the ignition switch from off to on.
• Start the engine and warm it to normal operating temperature.
• Turn ignition switch off and wait for a few seconds.
• Start the engine. With the scan tool connected to the DLC, drive the vehicle over 40 km/h (25 mph).
NOTE :
Vehicle must be driven above 40 km/h (25 mph) for fault setting conditions to be met.
• With the scan tool select: View ABS Data Stream and DTC.
• 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 12 Brakes for more information).
• Erase all codes and test drive the vehicle to verify the repair is complete.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK ABS MODULE DTC
• With the scan tool select: View ABS Data Stream.
• With an assistant driving the vehicle, check the following data stream list items while driving the vehicle over 40
km/h (25 mph).
Left Front Wheel Speed
Right Front Wheel Speed
Left Rear Wheel Speed
Right Rear Wheel Speed
• With the scan tool, read active DTCs in the ABS module.
Is DTC C1200 present and the Left Front Wheel Speed signal abnormal?
Ye s>>Go to the next step.
No
>>The condition that caused this DTC to set is currently not present (See Diagnostic Help and Intermit-
tent DTC Troubleshooting in Section 12 Brakes for more information).
DIAGNOSIS & TESTING
12–56Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5.CHECK LEFT FRONT WHEEL SPEED SENSOR GROUND CIRCUIT FOR AN OPEN
• Turn ignition switch off.
• Disconnect the ABS module electrical connector.
• For 1.6L/1.8L engine: Check the continuity between
terminal 2 of the ABS module connector E-002, and
terminal 1 of the Left Front wheel speed sensor
connector E-028, terminal side.
• For 2.0L/2.4L engine: Check the continuity between
terminal 2 of the ABS module connector A-020, and
terminal 1 of the Left Front wheel speed sensor
connector B-021, terminal side.
• Continuity should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for an open.
6.CHECK LEFT FRONT WHEEL SPEED SENSOR GROUND CIRCUIT FOR A SHORT TO GROUND
• Check the continuity between terminal 1 of the Left Front wheel speed sensor connector, terminal side and
ground.
• Continuity should not exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for a short to ground.
7.CHECK LEFT FRONT WHEEL SPEED SENSOR GROUND CIRCUIT FOR A SHORT TO VOLTAGE
• Check the voltage between terminal 1 of the Left Front wheel speed sensor connector, terminal side and
ground.
• Voltage should not exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for a short to battery.
8.CHECK DTC
• With the X-431 scan tool, read the ABS module DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC C1200 present?
Ye s>>Replace the ABS module (See ABS Module Removal & Installation in Section 12 Brakes).
No
>>The system is now operating properly.
Erase all codes and test drive the vehicle to verify the repair is complete.
DIAGNOSIS & TESTING
LTSMD120004
12–58Chery 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
C1203 Right front wheel
speed sensor circuit open or shorted •
Ignition switch:
ON
• Vehicle: Running ABS module
detected that the
Right Front wheel
speed sensor input
signal to ABS
module is open or
shorted. •
Right Front wheel
speed sensor
• Harness is open or
shorted
• ABS module
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 ABS module.
• Cycle the ignition switch from off to on.
• Start the engine and warm it to normal operating temperature.
• Turn ignition switch off and wait for a few seconds.
• Start the engine. With the scan tool connected to the DLC, drive the vehicle over 40 km/h (25 mph).
NOTE :
Vehicle must be driven above 40 km/h (25 mph) for fault setting conditions to be met.
• With the scan tool select: View ABS Data Stream and DTC.
• 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 12 Brakes for more information).
• Erase all codes and test drive the vehicle to verify the repair is complete.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK ABS MODULE DTC
• With the scan tool select: View ABS Data Stream.
• With an assistant driving the vehicle, check the following data stream list items while driving the vehicle over 40
km/h (25 mph).
Left Front Wheel Speed
Right Front Wheel Speed
Left Rear Wheel Speed
Right Rear Wheel Speed
• With the scan tool, read active DTCs in the ABS module.
Is DTC C1203 present and the Right Front Wheel Speed signal abnormal?
Ye s>>Go to the next step.
No
>>The condition that caused this DTC to set is currently not present (See Diagnostic Help and Intermit-
tent DTC Troubleshooting in Section 12 Brakes for more information).
DIAGNOSIS & TESTING
12
12–61Chery Automobile Co., Ltd.