B2278 Mercury Code - Steering Shaft Torque Sensor Malfunction
Quick Answer
The voltage required for correct Electronic Power Assist Steering (EPAS) system operation is 10-16 volts. Common causes include Faulty Steering Column, Steering Column harness is open or shorted, Steering Column circuit poor electrical connection. 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
- B2278 Mercury indicates Steering Shaft Torque Sensor Malfunction.
- Common causes
- Common causes include Faulty Steering Column, Steering Column harness is open or shorted, Steering Column circuit poor electrical connection.
- 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.
Code B2278 Mercury Description
What are the Possible Causes of the DTC B2278 Mercury?
- Faulty Steering Column
- Steering Column harness is open or shorted
- Steering Column circuit poor electrical connection
How to Fix the DTC B2278 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2278 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Need Help with the Code?
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Frequently Asked Questions about B2278 Mercury Code
1. What are common symptoms of OBDII code B2278 in a Mercury related to the steering shaft torque sensor malfunction?
The common symptoms include the illumination of the "Service AdvanceTrac" warning light on the dashboard, loss of power steering assistance, and potential difficulty steering the vehicle.
2. What are some possible causes of OBDII code B2278 in a Mercury indicating a steering shaft torque sensor malfunction?
Possible causes include a faulty steering shaft torque sensor, damaged wiring or connectors in the sensor circuit, or issues with the steering column itself.
3. How can I diagnose the steering shaft torque sensor malfunction causing OBDII code B2278 in my Mercury?
Diagnosis typically involves using a professional OBDII scanner to read the specific trouble code, performing a visual inspection of the sensor and its connections, and testing the sensor's output using a multimeter.
4. Can I still drive my Mercury with OBDII code B2278 indicating a steering shaft torque sensor malfunction?
It is not recommended to drive the vehicle with this code active, as it can affect the functionality of the power steering system, potentially leading to unsafe driving conditions.
5. What are some repair tips for addressing OBDII code B2278 related to the steering shaft torque sensor malfunction in a Mercury?
Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty steering shaft torque sensor, and performing a recalibration of the sensor system.
6. Is it possible to reset OBDII code B2278 in a Mercury after fixing the steering shaft torque sensor malfunction?
Yes, after repairing the issue causing the steering shaft torque sensor malfunction, the OBDII trouble code can be cleared using an OBDII scanner to reset the system and turn off the warning light.
7. How serious is OBDII code B2278 indicating a steering shaft torque sensor malfunction in a Mercury?
This code should be addressed promptly, as it can affect the vehicle's steering performance and safety. Ignoring the issue may lead to further damage or unsafe driving conditions.
8. Can a DIY enthusiast with basic automotive skills fix OBDII code B2278 related to the steering shaft torque sensor malfunction in a Mercury?
Depending on the specific cause, some DIY enthusiasts with basic skills may be able to address this issue by following repair guides, but complex repairs or sensor replacements may require professional assistance.
9. Are there any recalls or technical service bulletins related to OBDII code B2278 in a Mercury for the steering shaft torque sensor malfunction?
It's recommended to check with a Mercury dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recalls or technical service bulletins related to this specific issue.
10. How much does it typically cost to repair OBDII code B2278 indicating a steering shaft torque sensor malfunction in a Mercury?
The cost of repairs can vary depending on the specific cause of the issue, but it may range from a couple of hundred dollars for simple fixes like wiring repairs to over a thousand dollars for sensor replacement and recalibration by a professional mechanic.
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