P278D
Kick Down Switch Circuit High
P278D is an OBD-II diagnostic trouble code meaning: Kick Down Switch Circuit High. Common causes: short circuit in kickdown switch circuit, kickdown switch malfunction. Estimated repair cost: $17–56.
Symptoms
- Lack of response to kickdown (sharp acceleration)
- Incorrect operation of the automatic transmission
- Check Engine Light Illuminates
- Reduced engine power
- The car goes into emergency mode
Causes
- Short circuit in kickdown switch circuit
- Kickdown switch malfunction
- Wiring harness damage
- Problems with contacts in connectors
- Engine control unit malfunction
How to Fix
- Check the continuity of the kickdown switch circuit
- Test the operation of the kickdown switch
- Inspect and, if necessary, replace damaged wires
- Clean or replace oxidized contacts in connectors
- If necessary, replace the kickdown switch
Related codes
Error P278D by Vehicle Brand
FAQ
What does the P278D code mean?
P278D is an OBD-II diagnostic trouble code that indicates: Kick Down Switch Circuit High
What causes a P278D error code?
The most common causes of P278D include: Short circuit in kickdown switch circuit; Kickdown switch malfunction; Wiring harness damage; Problems with contacts in connectors.
How do I fix a P278D diagnostic trouble code?
To fix P278D: Check the continuity of the kickdown switch circuit. Test the operation of the kickdown switch. Inspect and, if necessary, replace damaged wires. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P278D?
Limited driving only, diagnose soon
How much does it cost to fix P278D?
The estimated repair cost for P278D is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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