Chery Tiggo. Manual — part 255
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
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
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?
Yes
>>
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?
Yes
>>
Go to step 6.
No
>>
Go to the next step.
DIAGNOSIS & TESTING
3.
CHECK SHIFT SOLENOID VALVE 4 (SSV4) RESISTANCE
• Check SSV4 resistance as follows:
NUMBER
SOLENOID
1
Shift 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?
Yes
>>
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
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