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DTC P0768:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

DTC P0768:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

 id0502q98197r2

Outline

System malfunction location

Shift solenoid No.4 circuit malfunction
Detection condition
•  Under the following condition, the TCM detects the shift solenoid No.4 circuit malfunction:
―  Battery voltage is 10.5 V or more.
Fail-safe
•  Set to emergency mode.
•  Inhibits learning control.
•  Inhibits manual mode.
•  Inhibits neutral idle control.
•  Inhibits i-stop control.
•  Inhibits AAS.
Possible cause
•  Short or open circuit in shift solenoid No.4 circuit
•  Shift solenoid No.4 malfunction
System wiring diagram
•  Not applicable
Connector diagram
•  Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action
1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
•  Record the freeze frame data/snapshot data.
Note
•  Recording can be facilitated using the screen capture of the PC function.
—
Go to the next step.
2
VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
•  Verify related Service Bulletins, on-line repair information, or Service Information availability.
•  Is any related information available?
Yes
Perform repair or diagnosis according to the available information.
•  If the vehicle is not repaired, replace the control valve body.
Go to repair completion verification.
No
Replace the control valve body, then go to repair completion verification.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (E)].)
Repair completion verification
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Switch the ignition ON (engine off or on).
•  Perform the DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (ET6A-EL, ET6AX-EL) (E)].)
No
DTC troubleshooting completed.