C1240 Code - Steering Angle Sensor Overtravel Performance
Quick Answer
The C1240 diagnostic trouble code (DTC) indicates an issue with the steering angle sensor's overtravel performance. Common causes include Steering angle sensor calibration error, Faulty wiring or connectors in the steering angle sensor circuit, Mechanical damage to the steering angle sensor. 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
- C1240 indicates Steering Angle Sensor Overtravel Performance.
- Common causes
- Common causes include Steering angle sensor calibration error, Faulty wiring or connectors in the steering angle sensor circuit, Mechanical damage to the steering angle sensor.
- 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 C1240 Description
The C1240 diagnostic trouble code (DTC) indicates an issue with the steering angle sensor's overtravel performance. The steering angle sensor is a crucial component of the vehicle's stability control system, as it helps measure the steering wheel's position and rate of turn. When the sensor detects that the steering wheel has turned beyond its maximum allowable range, it triggers the C1240 code. This could be due to a mechanical or electrical fault within the sensor itself or the system it is connected to.
Common Causes of C1240
- Steering angle sensor calibration error
- Faulty wiring or connectors in the steering angle sensor circuit
- Mechanical damage to the steering angle sensor
- Malfunctioning stability control module
- Electronic interference affecting the sensor's readings
Symptoms of C1240
- ABS or stability control warning light illuminated on the dashboard
- Traction control system malfunction
- Steering wheel not returning to center position properly
- Vehicle pulling to one side during acceleration or braking
How to Fix C1240
- Begin by diagnosing the exact cause of the issue with a professional diagnostic tool to confirm the C1240 code and pinpoint the source of the problem.
- Inspect the wiring and connectors of the steering angle sensor for any signs of damage or corrosion. Repair or replace any faulty components.
- Calibrate the steering angle sensor according to the manufacturer's specifications to ensure accurate readings.
- Check the stability control module for any faults or malfunctions. Replace the module if necessary.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix C1240
The cost of repairing a C1240 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to obtain a few quotes from different shops to get a more accurate estimate.
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Code C1240 Information for Specific Makes
- C1240 Chrysler — Steering Angle Sensor Overtravel Performance
- C1240 Dodge — Steering Angle Sensor Overtravel Performance
- C1240 Jeep — Steering Angle Sensor Overtravel Performance
Frequently Asked Questions about C1240 Code
1. What does the OBDII code C1240 mean?
C1240 indicates a problem with the Steering Angle Sensor (SAS) Overtravel Performance, suggesting the sensor may be reading values outside its normal operational range.
2. What are common symptoms of code C1240?
Symptoms include the ABS or traction control warning light turning on, reduced or disabled stability control functions, and potential steering responsiveness issues.
3. What causes the C1240 code to appear?
Common causes include a misaligned steering angle sensor, a faulty SAS, damaged wiring or connectors, or improper calibration after steering or suspension repairs.
4. Can an uncalibrated steering angle sensor trigger code C1240?
Yes, if the steering angle sensor is not properly calibrated after repairs or alignment, it can cause the code to appear.
5. How is code C1240 diagnosed?
A technician will use a scan tool to read SAS data, inspect the sensor and its wiring for damage, and verify proper calibration and alignment of the steering system.
6. Can I drive with the C1240 code active?
While the vehicle may still be drivable, stability and traction control systems may not function properly, increasing the risk of losing control in certain driving conditions.
7. How do you fix the C1240 code?
Repairs may involve recalibrating the SAS, repairing or replacing damaged wiring, or replacing the faulty sensor itself.
8. Does wheel alignment affect code C1240?
Yes, improper wheel alignment can cause the steering angle sensor to read incorrect data, leading to this code.
9. How much does it cost to fix code C1240?
The repair cost varies depending on the issue, ranging from $100 for a recalibration to over $500 if the SAS needs replacement.
10. Can a dead battery cause code C1240?
Yes, a dead or disconnected battery can reset the SAS calibration, potentially triggering this code if not recalibrated afterward.
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