2009 CHERY TIGGO engine

Downloaded from www.Manualslib.com manuals search engine P0768 - Shift Solenoid Valve 4 (SSV4) Short To Power Supply
P0768 - Shift Solenoid Valve 4 (SSV4) Open Or Short To Ground Circuit
DIAGNOSIS & TESTING
LTSMW080022T
08–74Chery 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
P0768 Shift Solenoid
Valve 4 (SSV4) 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 4 (SSV4)
• Harness or
connectors (The
sensor circuit
short to power
supply)
• Transaxle
Control Module
(TCM)
P0768 Shift Solenoid
Valve 4 (SSV4)
open or short to ground circuit 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 4 (SSV4)
• 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).
• If using the appropriate diagnostic test tool, you can diagnose the TCM harness while the TCM is still con-
nected.
• 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
08–75Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Diagnostic Procedure
1.CHECK A/T SOLENOID SIGNAL
• 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 normal?
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.
2.ACTUATE TEST
• With X-431, perform the solenoid actuate test.
• The solenoid should be heard.
Is the check result normal?
Ye s>>Go to step 6.
No
>>Go to the next step.
DIAGNOSIS & TESTING
08–76Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.CHECK SHIFT SOLENOID VALVE 4 (SSV4) RESISTANCE
• Check SSV4 resistance as follows:
NUMBER SOLENOID
1Shift Solenoid Valve 1
2 Shift Solenoid Valve 2
3 Shift Solenoid Valve 3
4 Shift Solenoid Valve 4
5 Shift Solenoid Valve 5
6 Shift Solenoid Valve 6
7 Pressure adjust solenoid
valve
8 Torque converter lock
solenoid valve
9 Manual valve
10 Valve body
• Check SSV4 resistance as shown in the following table:
SHIFT SOLENOID VALVE A/T ASSEMBLY
TERMINAL
VALVE 1 (SSV1) B11-B3
VALVE 2 (SSV2) B8-B3
VALVE 3 (SSV3) B10-B3
VALVE 4 (SSV4) B7-B3
VALVE 5 (SSV5) B5-B3
VALVE 6 (SSV6) B2-B3
RESISTANCE (23°C) 38-42()
Is the check result normal?
Ye s>>Replace the valve with a known good one.
With X-431, perform the solenoid actuate test.
If the solenoid can be heard, go to step 6.
If the solenoid can’t be heard, go to the next step.
No
>>Replace the damaged solenoid valve.
DIAGNOSIS & TESTING
08
08–77Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.CHECK SHIFT SOLENOID VALVE 4 (SSV4) POWER SUPPLY
• Turn the ignition switch on.
• Check power supply between SSV4 E-037 terminal
B7 and ground in the A/T assembly connector
E-037.
• 12 V voltage should exist.
• Or using the appropriate diagnostic test tool and a digital multimeter perform the following:
• Check the EVS4 solenoid supply voltage between TCM pin 1 and TCM pin 8 when activating the EVS4 sole-
noid and deactivating the EVS4 solenoid.
• Check the shift solenoid control signal. Check the voltage of the shift solenoid in each shift position.
• Check the voltage of the EVS4 solenoid supply circuit between the transaxle assembly electrical connector pin
B3 and pin B7.
SEQUENCE SOLENOID (EVS) CONDITION
LEVER
POSITION TCM TERMINAL
EVS1 EVS2 EVS3 EVS4 EVS5 EVS6
1-10 1-9 1-71-8 1-13 1-14
R 0V 0V0V0V0V 0V
N/P 0V0V+12V 0V0V 0V
1 0 V 0 V+12 V +12 V 0 V0 V
2 0 V+12 V 0 V+12 V 0 V 0
3 0V 0V0V0V0V 0V
4 +12 V +12 V 0 V0 V0 V 0 V
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to ground in harness or connectors.
DIAGNOSIS & TESTING
LTSMD080042
08–78Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5.CHECK SHIFT SOLENOID VALVE 4 (SSV4) CONTROL CIRCUIT
• Turn the ignition switch off.
• Disconnect TCM connector.
• Disconnect A/T assembly connector.
• Turn the ignition switch on.
• Check harness for short to power supply.
A/T Assembly
connector
E-037 terminal B7 Ground
Voltage should
not exist
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit short to power supply in harness or connectors.
6.CHECK SHIFT SOLENOID VALVE 4 (SSV4) CONTROL CIRCUIT
• Check for harness continuity between the following terminals:
A/T ASSEMBLY
CONNECTOR E-037
TERMINAL TCM
CONNECTOR E-036
TERMINAL CONTINUITY
B7
8Yes
• Check the harness for short to ground.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to ground in harness or connectors.
DIAGNOSIS & TESTING
08
08–79Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0768 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
08–80Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine P0773 - Shift Solenoid Valve 5 (SSV5) Short To Power Supply
P0773 - Shift Solenoid Valve 5 (SSV5) Open Or Short To Ground Circuit
DIAGNOSIS & TESTING
LTSMW080022T
08
08–81Chery Automobile Co., Ltd.