C0720 - Steering Angle Sensor Malfunction in Popular Vehicles Like Honda and Ford

Quick Answer

C0720 means: DTC C0720 indicates a problem with the Steering Angle Sensor, affecting vehicle stability and handling.

Fix: Check and replace faulty components Cost: $150 - $400 Time: 90-180 minutes

Can I drive with C0720? Immediate attention is recommended, as driving with this issue can compromise safety.

Common Questions

What does C0720 mean and how does it affect my car?

DTC C0720 indicates a malfunction in the Steering Angle Sensor, which is vital for vehicle stability control systems. A failing sensor can lead to erratic steering responses, increased wear on other components, and potential safety risks. It's essential to address this issue promptly to ensure your vehicle handles correctly and maintains safety on the road.

What are the most common causes of C0720 and how much does it cost to fix?

Common causes include a faulty Steering Angle Sensor, which is responsible for measuring steering input. Repair costs can range from $150 to $400 for a sensor replacement, while wiring repairs may cost between $50 and $150. It's important to diagnose the issue correctly to avoid unnecessary expenses.

Can I drive my car with C0720 or should I stop immediately?

Driving with a C0720 code is not recommended as it can lead to unpredictable steering responses. If you notice symptoms like loose steering or warning lights, it's best to stop driving and have the vehicle inspected to prevent potential accidents.

How can I diagnose C0720 myself using GeekOBD APP?

To diagnose the C0720 code using the GeekOBD APP, connect your device to the vehicle's OBD2 port, run a full scan to retrieve the trouble codes, and review the freeze frame data to understand the operating conditions when the fault occurred. Pay attention to any related codes that might help narrow down the issue.

What vehicles are most commonly affected by C0720?

DTC C0720 is frequently seen in vehicles such as the 2013-2016 Honda Accord, 2015-2019 Ford F-150, and models from Nissan and Toyota. Always check for any manufacturer recalls or technical service bulletins that might address this issue.

How can I prevent C0720 from happening again?

To prevent the C0720 code from recurring, perform regular maintenance on your vehicle's steering system, ensure that all wiring is intact and protected from wear, and avoid modifications that could interfere with the steering components.

What is C0720?

The DTC code C0720 refers to a malfunction in the Steering Angle Sensor (SAS). This component is crucial for various systems such as electronic stability control and advanced driver-assistance systems (ADAS). When this sensor fails, it can lead to poor handling, unpredictable steering response, and the activation of warning lights on the dashboard. The SAS measures the angle of the steering wheel, allowing the vehicle's computer to adjust the handling characteristics based on driver input. If this sensor is malfunctioning, the vehicle may not be able to determine the correct steering angle, leading to potential safety issues. In practical terms, drivers may notice that their steering feels loose or erratic, and they might see warning indicators like the 'Check Engine' light or the stability control light illuminating. This code is commonly found in vehicles such as the 2013-2016 Honda Accord, 2015-2019 Ford F-150, and various models from Toyota and Nissan. Addressing this issue promptly is crucial not only for vehicle performance but also for overall driving safety.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0720 is present:

  • The check engine light stays on constantly, indicating a malfunction that needs urgent attention.
  • Steering feels loose or unresponsive, making it difficult to maintain control during turns.
  • Unexpected activation of stability control systems, leading to unnecessary braking or traction control interventions.
  • Increased effort required to steer, especially at low speeds, impacting overall driving comfort.
  • Unusual noises coming from the steering column, such as grinding or clicking sounds, may also be present.

Possible Causes

Most common causes of C0720 (ordered by frequency):

  1. The most common cause is a faulty Steering Angle Sensor, which occurs in roughly 60% of cases, often leading to erratic steering behavior.
  2. Wiring issues such as damaged insulation or loose connections can contribute to this code, as they disrupt the signal transmission to the vehicle's computer.
  3. Another cause may be software malfunctions in the vehicle's ECU, which can sometimes be resolved with a software update.
  4. Less common but serious causes include a damaged steering column, which may require extensive repairs or replacement.
  5. A rare cause could be interference from aftermarket parts or modifications, which may affect sensor performance.

C0720 Repair Costs

Cost Breakdown by Repair Type

Replace Steering Angle Sensor

Replacing the faulty steering angle sensor to restore proper vehicle handling.

  • Total: $150 - $400
  • Success rate: 85%
Repair Wiring Issues

Fixing any damaged wiring or connections that might be affecting the sensor's signal.

  • Total: $50 - $150
  • Success rate: 75%
Money-Saving Tips for C0720
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional C0720 Diagnosis Process

Follow these systematic steps to accurately diagnose C0720. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the Steering Angle Sensor and associated wiring (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the Steering Angle Sensor and associated wiring (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure all systems are functioning properly (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure all systems are functioning properly (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Steering Angle Sensor Replacement on 2015 Honda Accord

Vehicle: 2015 Honda Accord, 75,000 miles

Problem: Customer reported loose steering and the check engine light illuminated.

Diagnosis: Diagnostic scan revealed code C0720. Visual inspection showed frayed wiring leading to the sensor.

Solution: Replaced the Steering Angle Sensor and repaired the damaged wiring.

Cost: $350 (sensor: $250, wiring repair: $100)

Result: Customer reported restored steering feel and no warning lights after repair.

Case Study 2: Wiring Repair on 2016 Ford F-150

Vehicle: 2016 Ford F-150, 60,000 miles

Problem: Warning lights activated and steering felt erratic.

Diagnosis: C0720 was present; further inspection indicated a loose connector at the SAS.

Solution: Secured the loose connector and conducted a system reset with the GeekOBD APP.

Cost: $120 (labor and diagnostic fees)

Result: Steering stability improved, and no further issues were reported.

Diagnose C0720

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: C0720
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes