P278E Code - Kick Down Switch Circuit Intermittent/Erratic
Quick Answer
The P278E diagnostic trouble code (DTC) refers to the Kick Down Switch Circuit being intermittent or erratic. Common causes include Faulty kick-down switch, Wiring or connector issues, Malfunctioning transmission control module (TCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P278E indicates Kick Down Switch Circuit Intermittent/Erratic.
- Common causes
- Common causes include Faulty kick-down switch, Wiring or connector issues, Malfunctioning transmission control module (TCM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P278E Description
The P278E diagnostic trouble code (DTC) refers to the Kick Down Switch Circuit being intermittent or erratic. This code is typically found in automatic transmission vehicles and is related to the operation of the kick-down switch, which is a component that allows the transmission to downshift to a lower gear for better acceleration when the accelerator pedal is fully engaged.
Common Causes of P278E
- Faulty kick-down switch
- Wiring or connector issues
- Malfunctioning transmission control module (TCM)
- Defective throttle position sensor
- Poor electrical connection
Symptoms of P278E
- Sluggish acceleration
- Erratic shifting patterns
- Reduced power
- Transmission not downshifting properly
- Check Engine Light illuminated
How to Fix P278E
- Begin by conducting a thorough inspection of the kick-down switch, wiring, and connectors to check for any visible damage or loose connections.
- Test the kick-down switch and throttle position sensor using a multimeter to ensure they are functioning properly.
- Check the transmission control module for any fault codes and perform a reset if necessary.
- If no issues are found with the components, consider replacing the kick-down switch or throttle position sensor to address the intermittent circuit problem.
- Clear the DTC and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P278E
The cost of repairing a P278E code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair can range from $50 to $200, while labor costs may range from $100 to $300. However, it's important to note that diagnostic time and labor rates can vary between different repair shops and locations, so it's recommended to obtain a detailed estimate from a local auto repair shop before proceeding with the repairs.
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