Quick Answer
C0373 means: C0373 indicates a malfunction in the electronic stability control system related to the yaw rate sensor.
Can I drive with C0373? It's recommended to diagnose and repair the issue promptly to ensure vehicle safety.
Common Questions
What does C0373 mean and how does it affect my car?
C0373 indicates a malfunction in the electronic stability control system related to the yaw rate sensor. This can lead to reduced vehicle stability, especially during turns or sudden stops, making it essential to address promptly.
What are the most common causes of C0373 and how much does it cost to fix?
Common causes of C0373 include a faulty yaw rate sensor, damaged wiring, or software issues. Repair costs typically range from $150 to $300 for sensor replacement, while wiring issues may cost around $100 to $200.
Can I drive my car with C0373 or should I stop immediately?
While you might be able to drive with C0373, it is not advisable, as it compromises your vehicle's stability. It’s best to have the issue diagnosed and repaired as soon as possible to ensure safety.
How can I diagnose C0373 myself using GeekOBD APP?
To diagnose C0373 using the GeekOBD APP, connect the device to your vehicle’s OBD2 port, scan for codes, and review freeze frame data to assess the conditions that triggered the fault.
What vehicles are most commonly affected by C0373?
C0373 is frequently seen in 2010-2015 Chevrolet Equinox and GMC Terrain models. Be sure to check for any recalls or Technical Service Bulletins (TSBs) related to stability control issues.
How can I prevent C0373 from happening again?
Regular maintenance checks, including wiring inspections and software updates, can help prevent C0373. Additionally, avoiding driving through deep water or on rough terrain can minimize sensor damage.
What is C0373?
The Diagnostic Trouble Code (DTC) C0373 indicates a problem with the electronic stability control (ESC) system, specifically related to the yaw rate sensor. This sensor measures the vehicle’s rotation around its vertical axis, helping to maintain stability during turns and sudden maneuvers. When the Engine Control Module (ECM) detects a malfunction in the yaw rate sensor circuit, it triggers the C0373 code. This can lead to the stability control system being disabled, which may increase the risk of losing control of the vehicle in slippery conditions or during sharp turns. Real-world implications include the illumination of the check engine light and potential difficulties in handling the vehicle, especially in adverse weather conditions. Owners of vehicles like the 2010-2015 Chevrolet Equinox and GMC Terrain should pay close attention to this code, as it is not just a warning but a potential safety issue. Ignoring this code could result in increased wear on other vehicle systems and may lead to costly repairs down the line. Regular diagnostics and timely repairs are essential to ensure that the vehicle remains safe and reliable.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0373 is present:
- The check engine light stays illuminated constantly, signaling a persistent issue with the stability control system.
- Drivers may experience erratic handling, particularly during turns or sudden maneuvers, indicating a failure of the yaw rate sensor.
- Fuel economy may decrease by 10-15% due to the vehicle's stability control system working harder to compensate for the sensor failure.
- The stability control warning light may flash intermittently, suggesting that the system is attempting to compensate for the issue.
- In severe cases, the vehicle may enter limp mode, limiting speed and power to prevent further damage until repairs are made.
Possible Causes
Most common causes of C0373 (ordered by frequency):
- The most common cause is a faulty yaw rate sensor, which has a likelihood of around 60%. This can happen due to wear and tear or exposure to moisture.
- Another cause is damaged wiring or connectors in the yaw rate sensor circuit, which can lead to intermittent signals being sent to the ECM.
- A third possibility is software issues within the ECM itself, which can be resolved by updating the vehicle’s firmware. Regular software updates can prevent such issues.
- Less common but serious causes include a malfunctioning ABS module, which can affect the entire stability control system.
- A rare cause could be physical damage to the vehicle's frame or suspension, leading to incorrect readings from the yaw rate sensor.
C0373 Repair Costs
Cost Breakdown by Repair Type
Yaw Rate Sensor Replacement
Replacing a faulty yaw rate sensor to restore proper function to the stability control system.
- Total: $150 - $300
- Success rate: 95%
Wiring Repair or Replacement
Repairing or replacing damaged wiring or connectors in the sensor circuit.
- Total: $100 - $200
- Success rate: 90%
Money-Saving Tips for C0373
- 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 C0373 Diagnosis Process
Follow these systematic steps to accurately diagnose C0373. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Perform an initial visual inspection of the yaw rate sensor and surrounding wiring for any obvious damage or disconnections (5-10 minutes)
Step 1: Perform an initial visual inspection of the yaw rate sensor and surrounding wiring for any obvious damage or disconnections (5-10 minutes).
Step 2: Step 2: Use a diagnostic tool like the GeekOBD APP to scan for any additional codes and retrieve freeze frame data for context (10-15 minutes)
Step 2: Use a diagnostic tool like the GeekOBD APP to scan for any additional codes and retrieve freeze frame data for context (10-15 minutes).
Step 3: Step 3: Conduct component testing on the yaw rate sensor using a multimeter to check for proper voltage and signal output (20-30 minutes)
Step 3: Conduct component testing on the yaw rate sensor using a multimeter to check for proper voltage and signal output (20-30 minutes).
Step 4: Step 4: If repairs are made, run a system function test to verify proper operation before clearing the codes (10-15 minutes)
Step 4: If repairs are made, run a system function test to verify proper operation before clearing the codes (10-15 minutes).
Step 5: Step 5: Perform a road test to ensure that the stability control system operates correctly under various driving conditions (15-20 minutes)
Step 5: Perform a road test to ensure that the stability control system operates correctly under various driving conditions (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: 2013 Chevrolet Equinox C0373 Repair
Vehicle: 2013 Chevrolet Equinox, 75,000 miles
Problem: Customer reported frequent stability control warning lights and check engine light.
Diagnosis: Visual inspection revealed a corroded wiring harness connected to the yaw rate sensor.
Solution: Replaced the damaged wiring harness and reset the codes using GeekOBD APP.
Cost: $180 (parts $80, labor $100)
Result: The stability control system functioned normally after repairs, and the customer reported no further issues.
Case Study 2: 2011 GMC Terrain C0373 Resolution
Vehicle: 2011 GMC Terrain, 85,000 miles
Problem: Customer experienced handling issues and check engine light illumination.
Diagnosis: Diagnostic scan indicated C0373; further tests confirmed a faulty yaw rate sensor.
Solution: Replaced the yaw rate sensor and recalibrated the ESC system.
Cost: $250 (parts $150, labor $100)
Result: Post-repair road tests confirmed proper functionality, and the customer was satisfied with the results.