C0145 - Understanding DTC C0145: Common Causes and Fixes for 2008-2018 Chevrolet Silverado

Quick Answer

C0145 means: DTC C0145 signifies an issue with the stability control system, often linked to wheel speed sensors.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with C0145? Immediate attention is recommended to ensure safe vehicle operation.

Common Questions

What does C0145 mean and how does it affect my car?

DTC C0145 indicates a fault within the stability control system, particularly related to the wheel speed sensor. This affects your vehicle's braking performance and traction control, which can be dangerous in adverse conditions.

What are the most common causes of C0145 and how much does it cost to fix?

Common causes include a faulty wheel speed sensor, damaged wiring, or issues with the ABS control module. Repair costs can range from $150 for sensor replacement to over $1,200 for ABS module replacement.

Can I drive my car with C0145 or should I stop immediately?

It is not safe to drive your vehicle with DTC C0145, as it indicates potential braking system failures. It's advisable to have your vehicle inspected and repaired as soon as possible.

How can I diagnose C0145 myself using GeekOBD APP?

You can diagnose C0145 by connecting the GeekOBD APP to your vehicle's OBD2 port. Follow the prompts to scan for trouble codes and view live data from the wheel speed sensors.

What vehicles are most commonly affected by C0145?

DTC C0145 frequently affects models like the 2008-2018 Chevrolet Silverado and GMC Sierra, among others. Always check for recalls or technical service bulletins related to your specific vehicle.

How can I prevent C0145 from happening again?

Regular maintenance, such as inspecting the ABS system and wheel speed sensors for damage, can help prevent DTC C0145. Additionally, keeping your vehicle's software updated can prevent potential issues.

What is C0145?

DTC C0145 is a diagnostic trouble code that indicates a problem within the vehicle's stability control system, specifically relating to the wheel speed sensor or the anti-lock braking system (ABS). This code is commonly associated with various 2008-2018 Chevrolet Silverado models, indicating that the vehicle's computer has detected an inconsistency in the information being sent from the wheel speed sensors to the ABS module. When this occurs, you may notice symptoms such as the ABS warning light illuminating on your dashboard or the traction control system becoming inactive. The importance of addressing this code cannot be overstated, as it is crucial for the vehicle's safety features to function correctly, especially in adverse driving conditions. If left unresolved, you may experience decreased braking performance or potential loss of vehicle control. Therefore, understanding the implications of DTC C0145 is vital for maintaining not only your vehicle's performance but also your safety on the road.

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

Symptoms

Common symptoms when C0145 is present:

  • The ABS warning light stays illuminated on the dashboard, indicating a malfunction in the braking system.
  • You may notice a lack of traction control during acceleration, especially on slippery surfaces.
  • The vehicle may exhibit erratic braking behavior, such as pulsating brakes or decreased stopping power.
  • You might experience unusual noises from the braking system, such as grinding or squealing.
  • Fuel efficiency could decrease due to the vehicle's systems working harder to compensate for the loss of traction control.

Possible Causes

Most common causes of C0145 (ordered by frequency):

  1. The most common cause of DTC C0145 is a faulty wheel speed sensor, which occurs in about 60% of cases. This sensor monitors the rotational speed of the wheels and sends this data to the ABS module.
  2. Another cause could be damaged wiring or connectors associated with the wheel speed sensor, which can degrade over time due to exposure to moisture or road debris.
  3. In some instances, the ABS control module itself may fail, which is less common but can occur due to electrical issues or manufacturing defects.
  4. Less common but serious causes can include a malfunctioning brake pedal position sensor, which can affect the overall braking system and lead to safety concerns.
  5. A rare but possible cause involves software issues within the vehicle's ECU, which may require an update or reprogramming to resolve.

C0145 Repair Costs

Cost Breakdown by Repair Type

Wheel Speed Sensor Replacement

Replacing a faulty wheel speed sensor can resolve the C0145 code. This procedure typically includes labor and parts.

  • Total: $150 - $300
  • Success rate: 85%
ABS Module Repair/Replacement

If the ABS module is the issue, it may need to be repaired or replaced, which can be more costly.

  • Total: $500 - $1,200
  • Success rate: 75%
Money-Saving Tips for C0145
  • 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 C0145 Diagnosis Process

Follow these systematic steps to accurately diagnose C0145. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection to check for damaged wiring, loose connections, or corrosion around the wheel speed sensor and ABS module (5-10 minutes)

Step 1: Perform an initial visual inspection to check for damaged wiring, loose connections, or corrosion around the wheel speed sensor and ABS module (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: Use the GeekOBD APP to conduct a thorough OBD2 scan

Step 2: Use the GeekOBD APP to conduct a thorough OBD2 scan. Retrieve all codes and analyze freeze frame data to better understand the context of the fault (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: Conduct component testing on the wheel speed sensors using a multimeter or an oscilloscope to assess their functionality and signal output (20-30 minutes)

Step 3: Conduct component testing on the wheel speed sensors using a multimeter or an oscilloscope to assess their functionality and signal output (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: Perform a system function test to verify the operation of the ABS and stability control system after repairs and clear the codes using the GeekOBD APP (10-15 minutes)

Step 4: Perform a system function test to verify the operation of the ABS and stability control system after repairs and clear the 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: Conduct a road test under various conditions to ensure that the repairs were successful and that the vehicle's braking system is functioning properly (15-20 minutes)

Step 5: Conduct a road test under various conditions to ensure that the repairs were successful and that the vehicle's braking system is 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: Wheel Speed Sensor Replacement on a 2015 Chevrolet Silverado

Vehicle: 2015 Chevrolet Silverado, 75,000 miles

Problem: Customer reported the ABS warning light illuminated and experienced loss of traction control.

Diagnosis: Diagnosed using GeekOBD APP which indicated DTC C0145. Visual inspection revealed a faulty wheel speed sensor.

Solution: Replaced the defective wheel speed sensor and cleared the code using GeekOBD APP.

Cost: $200 (part: $80, labor: $120)

Result: Post-repair, the ABS warning light turned off, and the stability control system functioned correctly.

Case Study 2: ABS Module Replacement on a 2017 GMC Sierra

Vehicle: 2017 GMC Sierra, 60,000 miles

Problem: Customer noticed erratic braking behavior and the ABS light was illuminated.

Diagnosis: GeekOBD APP revealed DTC C0145, and further testing indicated a malfunctioning ABS module.

Solution: Replaced the ABS control module and updated the vehicle's software to the latest version.

Cost: $900 (part: $700, labor: $200)

Result: The repair resolved the issues, and the customer reported improved braking performance.

Diagnose C0145

Use GeekOBD APP for professional diagnosis!

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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: C0145
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes