P078D

DTC P078D, sometimes indicated as P078D00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the transmission (gearbox) causing shift timing solenoid b high.

The DTC P078D is a code that is generated when the shift timing solenoid B is high. This code is usually caused by a malfunctioning shift timing solenoid B or a wiring issue.
There are several things that can be done to fix this code. The first is to replace the shift timing solenoid B. The second is to check the wiring for any damage or faults. The third is to clean the electrical connectors on the shift timing solenoid B.

• P078D: Shift Timing Solenoid B High
• P078D: Shift Timing Solenoid "B" High
• P078D: Shift solenoid (SS), timing B – circuit high
• P078D 00: Shift solenoid (SS), timing B - circuit high