P078A
Shift Timing Solenoid B
P078A is an OBD-II diagnostic trouble code meaning: Shift Timing Solenoid B. Common causes: shift solenoid b malfunction, open or short circuit in solenoid circuit. Estimated repair cost: $17–67.
Symptoms
- Incorrect gear shifting
- Jerks when switching
- Switching delays
- Switching to emergency mode
- Check Engine light comes on
Causes
- Shift Solenoid B Malfunction
- Open or short circuit in solenoid circuit
- Poor contact in connectors
- Low transmission fluid level
- Problems with the transmission control unit
How to Fix
- Check the level and condition of the transmission fluid
- Check the solenoid circuit for opens and short circuits.
- Check solenoid resistance
- Replace faulty solenoid if necessary
- Reset the error and check the operation of the transmission
Related codes
Error P078A by Vehicle Brand
FAQ
What does the P078A code mean?
P078A is an OBD-II diagnostic trouble code that indicates: Shift Timing Solenoid B
What causes a P078A error code?
The most common causes of P078A include: Shift Solenoid B Malfunction; Open or short circuit in solenoid circuit; Poor contact in connectors; Low transmission fluid level.
How do I fix a P078A diagnostic trouble code?
To fix P078A: Check the level and condition of the transmission fluid. Check the solenoid circuit for opens and short circuits.. Check solenoid resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P078A?
Yes, but get it checked soon
How much does it cost to fix P078A?
The estimated repair cost for P078A is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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