2009 CHERY TIGGO check engine

Downloaded from www.Manualslib.com manuals search engine Diagnostic Procedure
1.CHECK A/T FLUID TEMPERATURE SENSOR RESISTANCE
• Turn the ignition switch off.
• Disconnect A/T assembly connector E-037.
• Check TFT sensor resistance between sensor terminals, component side.
TFT SENSOR RESISTANCE
TEMPERATURE (°C) RESISTANCE

-50 93917
-30 28237.4
-10 9826
0 6079
20 2528.5
25 2063
40 1159.2
50 810.4
70 419.1
80 309.2
100 176.2
120 105.9
140 66.7
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the TFT sensor.
DIAGNOSIS & TESTING
08–44Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK TFT SENSOR POWER SUPPLY
• Turn ignition switch on.
• Check power supply between A/T assembly terminal B1 and ground.
TFT SENSOR VOLTAGE
A/T ASSEMBLY CONNECTOR TERMINAL TERMINAL VOLTAGE
B1
Ground 5 V
• 5 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to power or short to ground in harness or connectors.
If circuit is normal, replace TCM.
3.CHECK TFT SENSOR GROUND CIRCUIT
• Turn ignition switch off.
• Disconnect TCM connector.
• Check continuity between TFT sensor connector E-037 and TCM connector E-036.
• Check TFT sensor ground circuit for a short to ground and short to power supply.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to ground or short to power supply in harness or connec-
tors.
4.CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0710 still present?
Ye s>>Replace the TCM.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
08
08–45Chery 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 CAUSES
P0715 Turbine speed
sensor affected by interference Engine is running The Transaxle
Control Module
(TCM) will set this
DTC when the
turbine speed signal
is not present. •
Turbine speed
sensor
• Harness or
connectors (The
sensor circuit is open
or shorted)
• TCM
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 TCM.
• Start engine and warm it to normal operating temperature.
• With the scan tool, 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 08 Transaxle & Transfer Case for more information).
NOTE :
• If using the appropriate diagnostic test tool, you can diagnose the TCM harness while the TCM is still connected.
• Using the appropriate diagnostic test tool in this way will help prevent electrical connector terminal damage.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK DTC AND TURBINE SPEED SENSOR DATA STREAM
• With the scan tool, select view DTC and data stream for A/T.
• Start the engine.
• Monitor the value of turbine speed sensor while driving.
Is the check result normal and DTC not present?
Ye s>>The condition that caused this DTC is intermittent (See Diagnostic Help in Section 08 Transaxle &
Transfer Case).
No
>>Go to the next step.
DIAGNOSIS & TESTING
08
08–47Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK TURBINE SPEED SENSOR REFERENCE VOLTAGE
• Turn ignition switch on.
• Check reference voltage between A/T assembly terminal D1, D2 and ground.
TURBINE SPEED SENSOR VOLTAGE
A/T ASSEMBLY CONNECTOR TERMINAL GROUND VOLTAGE
D1
Ground 2 V
D2
• 2 V should exist.
Is 2 V present at each electrical connector pin?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to power or short to ground in harness or connectors.
If circuit is normal, replace the TCM.
3.CHECK TURBINE SPEED SENSOR RESISTANCE
• Check the resistance of the turbine speed sensor between the turbine speed sensor electrical connector pin D1
and D2, component side.
TURBINE SPEED SENSOR RESISTANCE
TURBINE SPEED SENSOR RESISTANCE
BASED ON TRANSAXLE TEMPERATURE
TERMINAL RESISTANCE 23°C
D1 - D2 260 - 340
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the turbine speed sensor.
DIAGNOSIS & TESTING
08–48Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0715 present?
Ye s>>Replace the TCM.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
08
08–49Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NOTE :
Checking the automatic transaxle fluid quality and fluid level is the most basic check of the automatic transaxle. The
fluid check is also an important inspection to determine if the transaxle will need to be disassembled.
CAUTION:
The burnt scent of ATF fluid indicates that the transaxle fluid is contaminated. The tiny particles in
the fluid pan indicate that the transaxle is worn and it will be necessary to overhaul the transaxle.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK FLUID QUALITY, FLUID LEVEL AND DTC
• Drive the vehicle until the TFT reaches working temperature (70° - 80°C).
• Park the vehicle on level ground.
• Shift the gear selector lever to all gear positions once, stay in one gear about 5 seconds, then shift to gear
“N”.
• Clean and check the outside of dipstick and remove the dipstick to check the fluid level.
• With the scan tool, select view DTC and data stream for A/T.
• Start the engine.
• Monitor the value of the gear position as indicated in the following table while driving:
SEQUENCE SOLENOID (EVS) CONDITION
LEVER
POSITION EVS
EVS1 EVS2 EVS3 EVS4 EVS5 EVS6
R Not
active Not
active Not
active Not
active Not
active Not
active
N/P Not
active Not
active Active Not
active Not
active Not
active
1 Not
active Not
active Active Active Not
active Not
active
2 Not
active Active Not
active Active Not
active Not
active
3 Not
active Not
active Not
active Not
active Not
active Not
active
4 Active Active Not
active Not
active Not
active Not
active
Is the check result not normal and DTC P0730, DTC P0715 or DTC P0720 present?
Ye s>>If DTC P0715 is present, see DTC P0715 diagnostic procedure.
If DTC P0720 is present, see DTC P0720 diagnostic procedure.
No
>>Go to the next step.
DIAGNOSIS & TESTING
08–52Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.HYDRAULIC TEST
• Preheat the transaxle fluid to 80° - 100°C.
• Lift the vehicle until the wheels can rotate freely.
• Connect the special fluid pressure gage onto the
fluid pressure measurement port as (3).
CONNECTOR AND TEST CAVITY
CONNECTOR AND CAVITY 12 3
Figure name Output speed sensor Fluid pressure sensor Fluid pressure test port
STANDARD FLUID PRESSURE TEST
MEASURE STATUS ENGINE SPEED (RPM)STANDARD FLUID PRESSURE
(BAR)
Gear lever position Not runningBelow 0.2
D/R 820 RPM 2.6
D/R 1400 RPM 8.7
• In accordance with the shown status of standard fluid pressure measurement table, measure the fluid pressure
of measurement port. The measurement of port should be within the standard range.
• If some measurement values is beyond the standard range, please refer to the fluid pressure measurement and
diagnosis table for causes.
Is the check result normal?
Ye s>>Go to step 5 for disc or plate abrasion.
No
>>Go to the next step.
3.CHECK VALVE BODY ASSEMBLY AND FLUID PUMP AND PIPELINE
• Turn the ignition switch off.
• Remove and disassemble the DP0 Automatic Transaxle Assembly (See Automatic Transaxle Removal & Instal-
lation in Section 08 Transaxle & Transfer Case).
• Check valve body and fluid pump and pipeline.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the damaged components as needed.
DIAGNOSIS & TESTING
LTSMD080021
08
08–53Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.COMPRESSED AIR TEST
• Check low speed clutch system: Low speed clutch piston should be active and maintain pressure when com-
pressed air is applied to the fluid hole.
• Check reverse/low brake clutch system: Low speed clutch piston should be active and maintain pressure when
compressed air is applied to the fluid hole.
Is the check result normal?
Ye s>>Go to the next step for disc or plate abrasion.
No
>>Replace the damaged components as needed.
5.CHECK CLUTCH SYSTEM
• Check low speed clutch system:
2, 3, 4 gear clutch (E2)
Reverse and1-3gear clutch (E1)
Check clutch plate
Check clutch disc
Snap ring
Clutch reaction disc
D-Ring
Spring retainer
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the damaged components.
6.CHECK BRAKE SYSTEM
• Check reverse/low brake system:
4 gear brake (F1)
Reverse gear brake (F2)
1, 2 gear brake (F3)
Check brake plate
Check brake disc
Central support
Snap ring
Spring retainer
Brake piston
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the damaged components.
DIAGNOSIS & TESTING
08–54Chery Automobile Co., Ltd.