Quick Answer
C0445 means: DTC C0445 refers to a malfunction in the brake pedal position sensor circuit, affecting vehicle safety systems.
Can I drive with C0445? Immediate attention is recommended to ensure safe vehicle operation.
Common Questions
What does C0445 mean and how does it affect my car?
DTC C0445 indicates an issue with the brake pedal position sensor, which affects your vehicle's braking systems. If ignored, it can lead to unsafe driving conditions and compromised braking performance.
What are the most common causes of C0445 and how much does it cost to fix?
Common causes include a faulty brake pedal position sensor or damaged wiring, with repair costs typically ranging from $150 to $300 for sensor replacement and $100 to $200 for wiring repairs.
Can I drive my car with C0445 or should I stop immediately?
It's advisable to stop driving immediately if you see this code, as it may indicate compromised braking performance, which could lead to accidents.
How can I diagnose C0445 myself using GeekOBD APP?
You can use the GeekOBD APP to perform an OBD2 scan, check for additional codes, and view freeze-frame data to assess the situation before seeking professional help.
What vehicles are most commonly affected by C0445?
C0445 is frequently seen in 2015-2020 Chevrolet models, including the Silverado, Equinox, and Malibu, among others.
How can I prevent C0445 from happening again?
Regular maintenance, including checking brake system components and addressing electrical issues promptly, can help prevent C0445 from recurring.
What is C0445?
The diagnostic trouble code (DTC) C0445 indicates a problem related to the brake pedal position sensor circuit in vehicles, particularly prevalent in models like the Chevrolet Silverado and Equinox from 2015 to 2020. This code is triggered when the brake pedal position sensor detects an inconsistency in the expected voltage or signal. The brake pedal position sensor plays a crucial role in the vehicle's safety systems, influencing features such as the anti-lock braking system (ABS) and traction control. When C0445 is present, it can lead to issues like the ABS warning light illuminating, potential loss of ABS functionality, or even erratic brake behavior. Over time, if not addressed, it can lead to more severe problems, including compromised braking performance, which poses a significant safety risk. Therefore, understanding this code is essential for maintaining vehicle safety and reliability. Car owners experiencing this issue should schedule a diagnostic as soon as possible to avoid further complications.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0445 is present:
- The check engine light remains illuminated, indicating a persistent issue that requires attention.
- You may notice the ABS warning light on the dashboard, which suggests a problem with the braking system.
- Drivers often report a feeling of brake hesitation or unusual behavior when applying the brakes, which can be unsettling.
- In some cases, the vehicle may experience a decrease in fuel efficiency due to the malfunctioning sensor.
- There could be intermittent issues with the vehicle's cruise control system, making it unreliable.
Possible Causes
Most common causes of C0445 (ordered by frequency):
- The most common cause is a faulty brake pedal position sensor, accounting for about 70% of cases. This component can wear out over time or become damaged due to moisture exposure.
- A second common cause is damaged wiring or poor connections in the sensor circuit, which can disrupt the signal sent to the vehicle's computer.
- Corrosion at connector points is also a frequent issue, especially in regions with salty roads, which can lead to electrical failures and sensor malfunctions.
- Less commonly, a malfunctioning engine control module (ECM) can misinterpret the signals from the brake pedal position sensor, leading to false codes.
- In rare cases, software issues within the vehicle's onboard computer can cause the C0445 code to appear without any physical defects.
C0445 Repair Costs
Cost Breakdown by Repair Type
Brake Pedal Position Sensor Replacement
Replacing the faulty brake pedal position sensor to restore proper function.
- Total: $150 - $300
- Success rate: 95%
Wiring Repair
Repairing or replacing damaged wiring and connectors in the sensor circuit.
- Total: $100 - $200
- Success rate: 90%
Money-Saving Tips for C0445
- 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 C0445 Diagnosis Process
Follow these systematic steps to accurately diagnose C0445. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Conduct an initial visual inspection to check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Conduct an initial visual inspection to check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan to retrieve all codes and freeze frame data, providing context for the fault (10-15 minutes)
Step 2: Use the GeekOBD APP to perform an OBD2 scan to retrieve all codes and freeze frame data, providing context for the fault (10-15 minutes).
Step 3: Step 3: Test the brake pedal position sensor using a multimeter to verify if it operates within the correct voltage range (20-30 minutes)
Step 3: Test the brake pedal position sensor using a multimeter to verify if it operates within the correct voltage range (20-30 minutes).
Step 4: Step 4: Run a system function test to ensure the sensor is functioning correctly after any repairs and clear the codes (10-15 minutes)
Step 4: Run a system function test to ensure the sensor is functioning correctly after any repairs and clear the codes (10-15 minutes).
Step 5: Step 5: Perform a road test, driving under various conditions to confirm the successful repair and ensure no codes reappear (15-20 minutes)
Step 5: Perform a road test, driving under various conditions to confirm the successful repair and ensure no codes reappear (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: Brake Pedal Sensor Replacement on 2018 Chevrolet Silverado
Vehicle: 2018 Chevrolet Silverado 1500, 45,000 miles
Problem: Customer reported the check engine light was on, and ABS warning light was illuminated.
Diagnosis: Diagnostic scan showed C0445 code; inspection revealed a faulty brake pedal position sensor.
Solution: Replaced the brake pedal position sensor and cleared the codes.
Cost: $220 (including parts and labor)
Result: Post-repair, the lights were off, and braking performance returned to normal.
Case Study 2: Wiring Repair on 2016 Chevrolet Equinox
Vehicle: 2016 Chevrolet Equinox, 60,000 miles
Problem: Customer experienced intermittent ABS activation and C0445 code appeared during diagnostics.
Diagnosis: Visual inspection found corrosion at the sensor connector, affecting the signal.
Solution: Cleaned the connector and repaired the wiring harness.
Cost: $150 (parts and labor included)
Result: ABS functionality restored and no codes reappeared during follow-up.