P278A
Kick Down Switch Circuit
P278A is an OBD-II diagnostic trouble code meaning: Kick Down Switch Circuit. Common causes: faulty kickdown switch, open or short circuit in the circuit. Estimated repair cost: $17–56.
Symptoms
- Lack of response to kickdown
- Incorrect gear shifting
- Check Engine light comes on
- Reduced acceleration dynamics
- Car does not downshift when accelerating hard
Causes
- Faulty kickdown switch
- Open or short circuit in the circuit
- Poor contact in connectors
- Wiring Harness Problems
- Transmission control module malfunction
How to Fix
- Check the condition of the kickdown switch
- Check the integrity of the circuit and connection
- Inspect the wiring harness for damage
- Check contacts in connectors
- If necessary, replace the kickdown switch
Related codes
Error P278A by Vehicle Brand
FAQ
What does the P278A code mean?
P278A is an OBD-II diagnostic trouble code that indicates: Kick Down Switch Circuit
What causes a P278A error code?
The most common causes of P278A include: Faulty kickdown switch; Open or short circuit in the circuit; Poor contact in connectors; Wiring Harness Problems.
How do I fix a P278A diagnostic trouble code?
To fix P278A: Check the condition of the kickdown switch. Check the integrity of the circuit and connection. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P278A?
Limited driving only, diagnose soon
How much does it cost to fix P278A?
The estimated repair cost for P278A is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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