DTC P0767
DTC P0767 : Shift Solenoid Valve D Stuck ON
General Description
Shift solenoid valve D is installed on the valve body assembly. It is controlled by the ON/OFF signal from the transmission control module (TCM) to apply line pressure to the B1 cut valve. The B1 cut valve does not operate when shift solenoid valve D is OFF, and operates when it is ON. Transmission fluid pressure switch A is installed on the hydraulic passage where transmission fluid pressure switch A outputs ON when the B1 cut valve is not operating. Since the B1 cut valve does not operate when shift solenoid valve D is OFF, the hydraulic pressure is output from the B1 cut valve and turns transmission fluid pressure switch A to ON. Contrary, the B1 cut valve operates when shift solenoid D is ON, the hydraulic pressure is cut off from the B1 cut valve and turns transmission fluid pressure switch A to OFF. The hydraulic pressure to clutch pressure control solenoids D and F are cut off when the B1 cut valve is operated. For detecting the malfunction, the TCM uses the values of transmission fluid pressure switch A and transmission fluid pressure sensor C or E when clutch pressure control solenoid valve D or F is output commanded. If transmission fluid pressure switch A is OFF and the value of transmission fluid pressure sensor C or E is in abnormal range for a specified time when clutch pressure control solenoid D or F is output commanded, the TCM detects a shift solenoid valve D stuck on failure and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 1.0 second or more |
| DTC Type | Two drive cycles, MIL on, shift position indicator blinks |
Enable Conditions
| Condition | Minimum | Maximum | |
|---|---|---|---|
| Engine speed [Engine Speed] | 500 RPM | - | |
| 12 volt battery voltage [Battery Voltage] | 10 V | - | |
| Other* | Clutch C1 command pressure is 350 kPa (3.57 kgf/cm2 , 50.8 psi) or more and shift solenoid valve D is control commanded to OFF | ||
| Other** | Brake B2 command pressure is 350 kPa (3.57 kgf/cm2 , 50.8 psi) or more and shift solenoid valve D is control commanded to OFF | ||
| *: Symptom 1 **: Symptom 2 [ ]: HDS Parameter |
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Malfunction Threshold
One of these symptoms is met for at least 1.0 second:
- Symptom 1: Transmission fluid pressure switch A is OFF and the value of transmission fluid pressure sensor C is 100 kPa (1.0 kgf/cm2 , 14.5 psi) or less when clutch pressure control solenoid D is output commanded.
- Symptom 2: Transmission fluid pressure switch A is OFF and the value of transmission fluid pressure sensor E is 100 kPa (1.0 kgf/cm2 , 14.5 psi) or less when clutch pressure control solenoid F is output commanded.
Possible Cause
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Valve body assembly failure (shift solenoid valve D stuck on)
Confirmation Procedure
Operating Condition
- Start the engine.
- While pressing the brake pedal, shift the transmission to D position/mode, and wait for at least 10 seconds.
With the HDS
None.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the TCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on, the shift position indicator blinks, and a Confirmed DTC and the freeze data are stored.
Conditions for clearing the DTC
The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. 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.