Quick Answer
C0873 means: DTC C0873 indicates a malfunction with the steering angle sensor.
Can I drive with C0873? Immediate attention is recommended to ensure safe vehicle operation.
Common Questions
What does C0873 mean and how does it affect my car?
C0873 indicates an issue with the steering angle sensor, leading to compromised vehicle handling and stability. Ignoring this code can result in unsafe driving conditions.
What are the most common causes of C0873 and how much does it cost to fix?
Common causes include a faulty sensor, wiring issues, and ECM glitches. Repair costs can range from $100 for wiring repair to over $1,200 for complete steering column replacement.
Can I drive my car with C0873 or should I stop immediately?
It's advisable to avoid driving the vehicle until the issue is diagnosed and repaired, as it can lead to unsafe steering conditions.
How can I diagnose C0873 myself using GeekOBD APP?
You can use the GeekOBD APP to scan for the C0873 code, check freeze frame data, and monitor real-time sensor readings to help identify the problem.
What vehicles are most commonly affected by C0873?
DTC C0873 is commonly found in 2010-2015 Chevrolet Equinox and GMC Terrain models, among others. Similar issues may occur in other GM vehicles.
How can I prevent C0873 from happening again?
Regular maintenance, including inspections of the steering system and ensuring proper connections, can help prevent future occurrences of the C0873 code.
What is C0873?
DTC C0873 refers to a malfunction related to the steering angle sensor, a crucial component in modern vehicles that helps ensure proper steering response and stability control. This code is particularly prevalent in certain General Motors models, such as the 2010-2015 Chevrolet Equinox and GMC Terrain, where the sensor fails to communicate accurately with the vehicle’s electronic stability control system. When this occurs, it can lead to a range of driving issues, including reduced stability, compromised handling, and potential safety hazards. Essentially, the steering angle sensor measures the direction the steering wheel is turned and sends that data to the vehicle's computer system. If the sensor fails, the vehicle may not respond correctly to steering inputs, increasing the risk of accidents. Owners may also notice warning lights on the dashboard, such as the ABS or traction control lights, indicating a problem. Understanding this DTC is vital for safe vehicle operation, as ignoring it could lead to more severe issues down the line. Regular diagnostics and addressing issues promptly can help maintain vehicle safety and performance.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0873 is present:
- The check engine light or stability control warning light stays illuminated on the dashboard, indicating a malfunction in the steering system.
- Drivers may experience inconsistent steering response, where the vehicle does not track straight or requires constant corrections during driving.
- There may be noticeable changes in handling, such as the steering feeling heavy or unresponsive during tight turns or maneuvers.
- The vehicle’s traction control system may activate unexpectedly, causing reduced power during acceleration or slippery conditions.
- In some cases, drivers may hear unusual noises from the steering column or notice that the steering wheel is misaligned.
Possible Causes
Most common causes of C0873 (ordered by frequency):
- The most common cause of DTC C0873 is a faulty steering angle sensor, which has a likelihood of around 60%. This can occur due to wear and tear over time or physical damage during service.
- A second common cause involves wiring issues, such as damaged or corroded connectors that disrupt the sensor's signal. This has about a 25% likelihood and can often be resolved with a thorough inspection.
- Less frequently, the vehicle's main computer (ECM) could have software glitches or programming issues, contributing to sensor miscommunication. Regular updates and maintenance can help prevent this.
- Another serious cause is the failure of the steering column assembly itself, which may require significant repairs or replacement and has a likelihood of about 10%.
- Rarely, external factors such as fluid leaks or mechanical failures in the steering system can lead to incorrect sensor readings, although this is less common.
C0873 Repair Costs
Cost Breakdown by Repair Type
Steering Angle Sensor Replacement
Replacing the faulty steering angle sensor usually resolves the C0873 code.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring or connectors can help restore functionality.
- Total: $100 - $200
- Success rate: 85%
Steering Column Assembly Replacement
In cases of severe damage, the steering column may need to be replaced.
- Total: $600 - $1,200
- Success rate: 80%
Money-Saving Tips for C0873
- 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 C0873 Diagnosis Process
Follow these systematic steps to accurately diagnose C0873. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Begin with a visual inspection of the steering angle sensor and associated wiring
Step 1: Begin with a visual inspection of the steering angle sensor and associated wiring. Look for signs of wear, corrosion, or disconnections (5-10 minutes).
Step 2: Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve stored codes and freeze frame data for context on the fault (10-15 minutes)
Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve stored codes and freeze frame data for context on the fault (10-15 minutes).
Step 3: Step 3: Perform component testing using a multimeter to check the voltage and continuity of the steering angle sensor (20-30 minutes)
Step 3: Perform component testing using a multimeter to check the voltage and continuity of the steering angle sensor (20-30 minutes).
Step 4: Step 4: Conduct a system function test to ensure the steering system operates correctly after repairs are made, and clear any fault codes (10-15 minutes)
Step 4: Conduct a system function test to ensure the steering system operates correctly after repairs are made, and clear any fault codes (10-15 minutes).
Step 5: Step 5: Road test the vehicle under various conditions to confirm that the steering and stability systems are functioning properly (15-20 minutes)
Step 5: Road test the vehicle under various conditions to confirm that the steering and stability systems are functioning properly (15-20 minutes).
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 in 2012 Chevrolet Equinox
Vehicle: 2012 Chevrolet Equinox, 85,000 miles
Problem: Customer reported that the steering control warning light was illuminated and the vehicle felt unstable during turns.
Diagnosis: After running diagnostics with the GeekOBD APP, a C0873 code was confirmed, pointing to a faulty steering angle sensor.
Solution: Replaced the steering angle sensor and cleared the fault codes.
Cost: $250 (including parts and labor)
Result: The warning light was resolved, and the vehicle’s handling returned to normal.
Case Study 2: Wiring Repair in 2011 GMC Terrain
Vehicle: 2011 GMC Terrain, 90,000 miles
Problem: Driver experienced intermittent stability control issues and the C0873 code appeared during a check engine scan.
Diagnosis: Inspection revealed damaged wiring connections at the steering angle sensor.
Solution: Repaired the wiring harness and reconnected the sensor.
Cost: $150 (including parts and labor)
Result: The stability control system functioned correctly post-repair, and the C0873 code was eliminated.