C1278 Code - Steering Wheel Angle 1 And 2 Signal Faulted
Quick Answer
The steering wheel rotation (in degrees) is sent to the Anti-Lock Brake System (ABS) module. Common causes include Faulty Steering Wheel Angle Sensor, Steering Wheel Angle Sensor harness is open or shorted, Steering Wheel Angle Sensor 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
- C1278 indicates Steering Wheel Angle 1 And 2 Signal Faulted.
- Common causes
- Common causes include Faulty Steering Wheel Angle Sensor, Steering Wheel Angle Sensor harness is open or shorted, Steering Wheel Angle Sensor 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 C1278 Description
What are the Possible Causes of the DTC C1278?
- Faulty Steering Wheel Angle Sensor
- Steering Wheel Angle Sensor harness is open or shorted
- Steering Wheel Angle Sensor circuit poor electrical connection
How to Fix the DTC C1278?
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 C1278 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.
Need more information about the C1278 code?
Need more information on how to fix the C1278 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1278 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C1278 Buick — TCS Temporarily Inhibited By PCM
- C1278 Cadillac — TCS Temporarily Inhibited By PCM
- C1278 Chevrolet — TCS Temporarily Inhibited By PCM
- C1278 Ford — Steering Wheel Angle 1 And 2 Signal Faulted
- C1278 GMC — TCS Temporarily Inhibited By PCM
- C1278 Lexus — Abnormal Change in Output Signal of Rear Speed Sensor Left
- C1278 Lincoln — Steering Wheel Angle 1 And 2 Signal Faulted
- C1278 Mazda — Steering Angle Sensor
- C1278 Mercury — Steering Wheel Angle 1 And 2 Signal Faulted
- C1278 Pontiac — TCS Temporarily Inhibited By PCM
- C1278 Saturn — TCS Temporarily Inhibited By PCM
- C1278 Scion — Abnormal Change in Output Signal of Rear Speed Sensor Left
- C1278 Toyota — Abnormal Change in Output Signal of Rear Speed Sensor Left
Frequently Asked Questions about C1278 Code
1. What are the common symptoms of OBDII code C1278 (Steering Wheel Angle 1 And 2 Signal Faulted)?
- Common symptoms include the traction control light or stability control light coming on, steering wheel angle sensor errors, and potentially affecting the vehicle's stability control system.
2. What could cause the OBDII code C1278 to trigger?
- This code may be triggered by a faulty steering wheel angle sensor, damaged wiring or connectors related to the sensor, or issues with the vehicle's stability control system.
3. How can I diagnose the Steering Wheel Angle 1 And 2 Signal Faulted error code?
- Diagnosis typically involves checking the wiring and connectors related to the steering wheel angle sensor, testing the sensor itself for proper operation, and scanning the vehicle's computer for additional error codes.
4. Can driving with the C1278 code present cause further damage to the vehicle?
- Continuing to drive with the C1278 code present may affect the vehicle's stability control system, which can impact handling and safety. It is recommended to address the issue promptly.
5. What are some repair tips for resolving the Steering Wheel Angle 1 And 2 Signal Faulted code?
- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty steering wheel angle sensor, and ensuring proper alignment and calibration of the sensor.
6. Is it safe to continue driving the vehicle if the C1278 code is present but there are no noticeable symptoms?
- While there may not be immediate noticeable effects, it is still advisable to address the issue promptly to prevent potential safety concerns related to the vehicle's stability control system.
7. Can a DIY enthusiast fix the C1278 code, or is professional assistance recommended?
- Depending on the cause of the code, some DIY enthusiasts may be able to address the issue by replacing the steering wheel angle sensor or checking wiring. However, professional assistance is recommended for more complex diagnostics and repairs.
8. Are there any recalls or service bulletins related to the C1278 code?
- It's advisable to check with the vehicle manufacturer or authorized service centers to see if there are any recalls or service bulletins related to the Steering Wheel Angle 1 And 2 Signal Faulted code.
9. How long does it typically take to repair the C1278 code?
- The repair time for the C1278 code can vary depending on the specific cause, availability of parts, and the complexity of the repair. It may range from a few hours to a day or more, especially if calibration is needed.
10. Can resetting the OBDII code C1278 temporarily resolve the issue?
- Resetting the code may temporarily clear the warning lights, but if the underlying issue causing the C1278 code is not addressed, the problem is likely to reoccur. It's important to diagnose and repair the root cause of the code.
Discuss the causes and fixes for C1278 OBDII Code
Code C1278 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
