Advanced Diagnostics

Advanced Diagnostics

DTC P0767: Shift Solenoid Valve D Stuck ON






General Description
Shift solenoid valve D is installed in the transmission housing. It is controlled by the ON/OFF signal from the powertrain control module (PCM) to apply modulated pressure to the lock-up shift valve. The signal from the PCM is output to apply clutch pressure control pressure to the proper gear change clutch according to the gear change schedule. When the signal to shift solenoid valve D from the PCM is OFF, and modulated pressure is discharged, the lock-up shift valve is inactive. When the signal to shift solenoid valve D from the PCM is ON, and modulated pressure is applied to the lock-up shift valve, it operates against the lock-up shift valve spring. The PCM monitors the input shaft (mainshaft) speed and the output shaft (countershaft) speed at the gear change determined by the shift schedule. When an improper gear ratio is output compared to the predetermined gear change mode, a shift solenoid valve D ON failure is detected and a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
One of these occurs:
- The actual gear position is neutral for at least 3 seconds when 1st gear in-gear is commanded, though there is no history of being neutral when reverse gear in-gear is commanded.
- The actual gear position is neutral for at least 3 seconds, though 1st gear in-gear is commanded and reverse drive occurred during this driving cycle.

Driving Pattern
Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear.

- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.