C0112 - Understanding the Brake Pressure Sensor Circuit Malfunction in 2010-2015 Ford Fusion and Other Models

Quick Answer

C0112 means: DTC C0112 refers to a malfunction in the brake pressure sensor circuit, indicating potential issues with the braking system.

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

Can I drive with C0112? Immediate attention is recommended to ensure safe vehicle operation.

Common Questions

What does C0112 mean and how does it affect my car?

DTC C0112 refers to a malfunction in the brake pressure sensor circuit. This can significantly impact your car’s braking performance, potentially leading to longer stopping distances and compromised safety. If your ABS warning light is on or the brake system feels different, it’s important to address this issue immediately to ensure safe operation.

What are the most common causes of C0112 and how much does it cost to fix?

Common causes of C0112 include a faulty brake pressure sensor, damaged wiring, or issues within the ABS module. Repair costs can vary, ranging from $150 for a sensor replacement to over $600 if the ABS module needs to be replaced. It's crucial to diagnose the exact issue to determine the right repair approach.

Can I drive my car with C0112 or should I stop immediately?

Driving with C0112 is risky. While you might still have some braking ability, the effectiveness can be compromised. It’s advisable to stop using the vehicle and get it inspected to ensure your safety and the safety of others on the road.

How can I diagnose C0112 myself using GeekOBD APP?

To diagnose C0112 using the GeekOBD APP, connect the app to your vehicle’s OBD2 port and retrieve the diagnostic codes. Look for any additional codes that may provide context and check freeze frame data for the conditions when the code was triggered. This information can help narrow down the issue.

What vehicles are most commonly affected by C0112?

DTC C0112 is frequently reported in vehicles like the 2010-2015 Ford Fusion, certain models of the Lincoln MKZ, and other Ford vehicles with similar braking systems. Always check for specific recalls or Technical Service Bulletins (TSBs) related to your vehicle.

How can I prevent C0112 from happening again?

To prevent C0112 from recurring, regularly inspect your brake system for wear and tear, ensure brake fluid levels are maintained, and address any issues immediately. Keeping the wiring connections clean and protected from moisture can also help in preventing future problems.

What is C0112?

DTC C0112 indicates a malfunction within the brake pressure sensor circuit, commonly affecting vehicles like the 2010-2015 Ford Fusion and certain other models. This code signifies that the Engine Control Module (ECM) has detected an issue with the brake pressure sensor’s input signal. This sensor is crucial for the vehicle's braking system, as it measures the hydraulic pressure and ensures the appropriate response from the Anti-lock Braking System (ABS). When this code is triggered, it could result in a variety of symptoms, including the illumination of the ABS warning light. While the vehicle may seem to operate normally at first, ignoring this code can lead to compromised brake performance, increased stopping distances, and even complete brake system failure. As such, it's imperative to address this issue promptly. The vehicle's ability to handle emergency situations could be severely impacted if the brake pressure sensor fails and is not resolved, putting the safety of the driver and passengers at risk. Additionally, this code can arise due to wiring issues, faulty sensors, or internal malfunctions within the ABS module itself.

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

Symptoms

Common symptoms when C0112 is present:

  • The ABS warning light illuminates on the dashboard, indicating a potential braking system issue.
  • The brake pedal feels spongy or softer than usual, which may impact braking efficiency.
  • During braking, the vehicle may experience longer stopping distances, which can be dangerous in emergency situations.
  • Unusual noises, such as grinding or squealing, may occur when applying the brakes.
  • Inconsistent brake response, where the brakes may not engage or disengage as expected.

Possible Causes

Most common causes of C0112 (ordered by frequency):

  1. The most common cause of DTC C0112 is a faulty brake pressure sensor, which has a likelihood of about 60%. This can occur due to wear and tear or exposure to moisture.
  2. Another probable cause is damaged wiring or connectors within the brake pressure sensor circuit, which can break down over time due to vibration or corrosion.
  3. A malfunction within the ABS module can also trigger this code, which is less common but can complicate the repair process. Regular maintenance can help prevent this.
  4. Rarely, issues with the powertrain control module (PCM) can lead to the C0112 code, but this is uncommon and usually accompanied by other codes.
  5. A damaged brake line can sometimes affect the pressure readings, leading to this diagnostic trouble code.

C0112 Repair Costs

Cost Breakdown by Repair Type

Brake Pressure Sensor Replacement

Replacing the faulty brake pressure sensor is the most common repair for DTC C0112.

  • Total: $150 - $300
  • Success rate: 85%
Wiring Repair

Repairing damaged wiring or connectors related to the brake pressure sensor circuit.

  • Total: $100 - $200
  • Success rate: 75%
ABS Module Replacement

In cases where the ABS module is at fault, replacing it may be necessary.

  • Total: $600 - $1200
  • Success rate: 90%
Money-Saving Tips for C0112
  • 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 C0112 Diagnosis Process

Follow these systematic steps to accurately diagnose C0112. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Begin with an initial visual inspection of the brake system

Step 1: Begin with an initial visual inspection of the brake system. Look for any damaged wiring, loose or corroded connections, and ensure the brake fluid is at the correct level (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 an OBD2 scanner, such as the GeekOBD APP, to retrieve the stored codes and any freeze frame data that can give context to the fault (10-15 minutes)

Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve the stored codes and any freeze frame data that can give context to 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 brake pressure sensor using a multimeter to check for proper voltage and resistance levels (20-30 minutes)

Step 3: Conduct component testing on the brake pressure sensor using a multimeter to check for proper voltage and resistance levels (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: After making necessary repairs, perform a system function test to confirm that the brake system is operating correctly and clear the codes (10-15 minutes)

Step 4: After making necessary repairs, perform a system function test to confirm that the brake system is operating correctly and clear the codes (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: Road test the vehicle to ensure the ABS system functions correctly under various driving conditions (15-20 minutes)

Step 5: Road test the vehicle to ensure the ABS system functions correctly under various driving conditions (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: Brake Pressure Sensor Replacement on 2012 Ford Fusion

Vehicle: 2012 Ford Fusion, 85,000 miles

Problem: Customer reported ABS warning light illuminated and spongy brake pedal.

Diagnosis: Upon scanning with GeekOBD APP, DTC C0112 was retrieved along with freeze frame data revealing high brake fluid pressure.

Solution: Replaced the brake pressure sensor and cleared the codes. Re-tested the braking system to ensure proper functionality.

Cost: $250 (sensor $150, labor $100)

Result: ABS light turned off and brake pedal felt firm again, customer satisfied with repair.

Case Study 2: Wiring Repair on 2011 Lincoln MKZ

Vehicle: 2011 Lincoln MKZ, 75,000 miles

Problem: ABS light on, with intermittent braking issues reported.

Diagnosis: Diagnosed with GeekOBD APP showing C0112. Visual inspection found a frayed wire in the brake pressure sensor circuit.

Solution: Repaired the wiring and connectors and performed a system test to confirm the repair.

Cost: $180 (wiring repair $80, labor $100)

Result: Resolved the ABS light issue and improved braking performance.

Diagnose C0112

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: C0112
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes