Quick Answer
C0673 means: C0673 indicates a steering position sensor circuit issue, affecting steering performance.
Can I drive with C0673? It's recommended to address this issue immediately to ensure vehicle safety.
Common Questions
What does C0673 mean and how does it affect my car?
C0673 indicates a problem with the steering position sensor, which may result in steering difficulties and compromised vehicle safety. If not addressed, it could lead to further mechanical issues.
What are the most common causes of C0673 and how much does it cost to fix?
The most frequent cause is a faulty steering position sensor, which can range from $150 to $300 for replacement. Other causes include wiring problems and ECU issues, which have varying repair costs.
Can I drive my car with C0673 or should I stop immediately?
It's advisable to refrain from driving your vehicle if C0673 is present, as it may lead to unpredictable steering behavior, posing safety risks.
How can I diagnose C0673 myself using GeekOBD APP?
To diagnose C0673 with the GeekOBD APP, connect it to your vehicle, run a full system scan, and review the steering position sensor data. Look for any anomalies that indicate faults.
What vehicles are most commonly affected by C0673?
C0673 is commonly found in models such as the 2015-2018 Chevrolet Silverado, 2016-2019 GMC Sierra, and other GM vehicles equipped with similar steering systems.
How can I prevent C0673 from happening again?
Regular maintenance checks on your vehicle’s electrical system and steering components can help prevent C0673. Ensure connections are clean and secure, and replace any worn components promptly.
What is C0673?
The diagnostic trouble code (DTC) C0673 indicates a problem with the steering position sensor circuit. This sensor is crucial for providing the engine control unit (ECU) with real-time data on the steering wheel's position. When the ECU detects that the input from the steering position sensor is out of the expected range or performance parameters, it triggers the C0673 code. Common symptoms include an illuminated check engine light, steering issues, or problems with stability control systems. Understanding this code is vital as it not only affects steering performance but could also lead to more severe issues if left unaddressed. For instance, if the steering position sensor sends inaccurate data, it could compromise the vehicle's handling and safety features, particularly in emergency situations. This code is frequently seen in various models, including the 2015-2018 Chevrolet Silverado and the 2016-2019 GMC Sierra. The potential for steering failure makes it critical to diagnose and repair any issues associated with this code promptly.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0673 is present:
- Check engine light remains illuminated, indicating a fault in the steering position sensor circuit.
- Difficulty in steering, which may feel loose or unresponsive, affecting overall vehicle handling.
- Stability control warning light may activate, indicating issues with the vehicle's traction and control systems.
- Steering feels stiffer than usual, particularly at low speeds, making maneuvering challenging.
- Inconsistent steering feedback, where the vehicle may drift or pull to one side unexpectedly.
Possible Causes
Most common causes of C0673 (ordered by frequency):
- Faulty steering position sensor (60% likelihood) - This is the most common issue, where the sensor fails to provide accurate readings.
- Wiring issues (20% likelihood) - Damaged or corroded wiring can disrupt the signal between the sensor and the ECU.
- ECU malfunctions (10% likelihood) - Rarely, the vehicle's computer may misinterpret the sensor's readings due to internal faults.
- Mechanical steering issues (5% likelihood) - Problems such as worn steering components can lead to performance discrepancies.
- Calibration errors (5% likelihood) - After repairs or replacement, the system may require recalibration to function correctly.
C0673 Repair Costs
Cost Breakdown by Repair Type
Steering Position Sensor Replacement
Replacing the faulty steering position sensor with a new OEM part.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring in the sensor circuit.
- Total: $100 - $200
- Success rate: 85%
ECU Reprogramming
Reprogramming or replacing the ECU if internal faults are present.
- Total: $200 - $500
- Success rate: 70%
Money-Saving Tips for C0673
- 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 C0673 Diagnosis Process
Follow these systematic steps to accurately diagnose C0673. 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).
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).
Step 3: Step 3: Component testing - Use a multimeter to check the resistance and output of the steering position sensor (20-30 minutes)
Step 3: Component testing - Use a multimeter to check the resistance and output of the steering position sensor (20-30 minutes).
Step 4: Step 4: Wiring inspection - Examine the wiring harness for damages and ensure proper connections (15-20 minutes)
Step 4: Wiring inspection - Examine the wiring harness for damages and ensure proper connections (15-20 minutes).
Step 5: Step 5: System function test - Verify the steering function after repairs and clear codes using the GeekOBD APP (10-15 minutes)
Step 5: System function test - Verify the steering function after repairs and clear codes using the GeekOBD APP (10-15 minutes).
Step 6: Step 6: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes)
Step 6: Road test verification - Drive the vehicle under various conditions to confirm repair success (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: C0673 Repair in a 2015 Chevrolet Silverado
Vehicle: 2015 Chevrolet Silverado, 80,000 miles
Problem: Customer reported intermittent steering issues and illuminated check engine light.
Diagnosis: After scanning with GeekOBD, code C0673 was confirmed, leading to a thorough inspection of the steering position sensor.
Solution: Replaced the faulty steering position sensor and cleared the code.
Cost: $250 (parts: $150 for the sensor, $100 for labor)
Result: Post-repair, the customer reported smooth steering and no further check engine light.
Case Study 2: C0673 in a 2017 GMC Sierra
Vehicle: 2017 GMC Sierra, 60,000 miles
Problem: Check engine light on with reported steering stiffness.
Diagnosis: OBD scan revealed C0673; visual inspection showed corroded wiring.
Solution: Repaired the wiring harness and reprogrammed the ECU.
Cost: $180 (parts: $80 for wiring, $100 for labor)
Result: Issue resolved, and the vehicle's steering responded normally post-service.