Chery Tiggo. Manual — part 250
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?
Yes
>>
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 and 1 - 3 gear clutch (E1)
− Check clutch plate
− Check clutch disc
− Snap ring
− Clutch reaction disc
− D-Ring
− Spring retainer
Is the check result normal?
Yes
>>
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?
Yes
>>
Go to the next step.
No
>>
Replace the damaged components.
DIAGNOSIS & TESTING
7.
CHECK DTC
• Assemble all the disassembled components.
• Install the Automatic Transaxle Assembly (See Automatic Transaxle Removal & Installation in Section 08 Trans-
axle & Transfer Case).
• Fill with new ATF.
• Fill the ATF from the refilling tube.
• Refit the hose connector disassembled in step 1 and refit the dipstick (clean the dipstick before refit).
• Shift the gear selector lever to each gear position and then shift to gear “N”.
• Drive the vehicle until the ATF reached working temperature (70° - 80°C) and re-check the fluid level. The fluid
level must be within the HOT range of dipstick.
• Refit the checking dipstick of transaxle.
• With the X-431 scan tool, read TCM DTCs.
• Refer to ⬙DTC Confirmation Procedure⬙.
Is DTC P0730 still present?
Yes
>>
Replace the TCM.
No
>>
The system is now operating properly.
DIAGNOSIS & TESTING
08
P0753 - Shift Solenoid Valve 1 (SSV1) Open Circuit Or Short To Power Supply Or
Short To Ground
DIAGNOSIS & TESTING
LTSMW080022T
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
DTC
DEFINITION
DTC
DETECTION
CONDITION
DTC SET CONDITION
POSSIBLE
CAUSES
P0753
Shift Solenoid
Valve 1 (SSV1)
short to power
supply
Vehicle is driving
The Transaxle Control Module
(TCM) will set this DTC when the
TCM detected an improper voltage
drop when it tries to operate the
solenoid valve.
• Shift Solenoid
Valve 1 (SSV1)
• Harness or
connectors (The
sensor circuit
short to power
supply)
• Transaxle
Control Module
(TCM)
P0753
Shift Solenoid
Valve 1 (SSV1)
open or short to
ground circuit
Vehicle is driving
The Transaxle Control Module
(TCM) will set this DTC when the
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
• Shift Solenoid
Valve 1 (SSV1)
• Harness or
connectors (The
sensor circuit is
open or shorted)
• Transaxle
Control Module
(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.
DIAGNOSIS & TESTING
08
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