C0964 - Understanding the Code and Its Impact on Your 2015-2020 Ford Explorer

Quick Answer

C0964 means: C0964 indicates a communication fault between the PCM and other modules.

Fix: Check and replace faulty components Cost: $150 - $500 Time: 90-180 minutes

Can I drive with C0964? Address immediately to ensure vehicle safety and performance.

Common Questions

What does C0964 mean and how does it affect my car?

C0964 indicates a communication issue between the vehicle's control modules, which can lead to performance problems such as erratic shifting, engine hesitation, and reduced safety features. Addressing this code is crucial for ensuring that your vehicle operates safely and efficiently.

What are the most common causes of C0964 and how much does it cost to fix?

The most common causes of C0964 include faulty wiring (60% likelihood) and malfunctioning control modules. Repair costs can range from $150 for simple wiring repairs to over $1,200 for a module replacement, depending on the specific issue.

Can I drive my car with C0964 or should I stop immediately?

While it may be possible to drive your vehicle with the C0964 code, it's not recommended. Doing so could compromise safety features like ABS and traction control, leading to potentially dangerous driving conditions.

How can I diagnose C0964 myself using GeekOBD APP?

To diagnose C0964, connect your GeekOBD APP to the OBD2 port of your vehicle, run a full scan to retrieve codes, and review freeze frame data to understand when the fault occurred. This information can help pinpoint the issue for further investigation.

What vehicles are most commonly affected by C0964?

C0964 is frequently seen in models like the 2015-2020 Ford Explorer, 2016-2018 Chevrolet Silverado, and other vehicles with complex electronic systems. Always check for any recalls or technical service bulletins related to your specific model.

How can I prevent C0964 from happening again?

To prevent C0964, ensure regular maintenance checks on your vehicle's wiring and connections, avoid aftermarket modifications that could interfere with the electrical system, and keep your vehicle's software updated.

What is C0964?

The diagnostic trouble code (DTC) C0964 indicates an issue with the vehicle's communication network, specifically relating to the control modules. This code often signifies that there is a fault in the communication between the powertrain control module (PCM) and other modules such as the ABS (anti-lock braking system) or the traction control system. When the C0964 code is triggered, it usually means that the PCM has detected a malfunction or an erroneous condition that prevents proper data exchange. This can lead to performance issues such as unstable engine performance, erratic transmission behavior, or reduced fuel efficiency. Additionally, the vehicle may exhibit symptoms such as warning lights illuminating on the dashboard, including the check engine light, which may remain illuminated until the underlying issue is resolved. For owners of vehicles like the 2015 Ford Explorer, it is crucial to address this code promptly, as ignoring it can lead to more severe problems, including compromised safety features like ABS and traction control, which are vital for vehicle stability during adverse driving conditions.

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

Symptoms

Common symptoms when C0964 is present:

  • The check engine light remains on, indicating a persistent issue that needs attention.
  • You may notice engine hesitation during acceleration, making driving feel less responsive and smooth.
  • Fuel economy may decrease by 10-15%, leading to more frequent trips to the gas station.
  • The ABS warning light may illuminate, suggesting potential issues with the braking system.
  • You could experience erratic shifting in the transmission, which may feel like the vehicle is struggling to change gears.

Possible Causes

Most common causes of C0964 (ordered by frequency):

  1. The most common cause of C0964, occurring in about 60% of cases, is faulty wiring or connectors within the communication network. This could be due to corrosion or physical damage.
  2. A second common cause is a malfunctioning control module, which may fail to send or receive signals properly, leading to communication errors.
  3. A less common but preventable cause is software glitches in the vehicle’s control systems, which can often be rectified with a simple software update from the dealer.
  4. Another serious cause could be a failing PCM, which can lead to extensive repair needs if not addressed quickly.
  5. In rare instances, the issue could stem from an aftermarket modification that interferes with the vehicle's electrical system.

C0964 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Repair or replace damaged wiring or connectors in the communication network.

  • Total: $150 - $500
  • Success rate: 85%
Control Module Replacement

Replace malfunctioning control modules that are causing communication errors.

  • Total: $300 - $1,200
  • Success rate: 90%
Software Update

Update the vehicle's software to fix glitches in communication protocols.

  • Total: $100 - $200
  • Success rate: 75%
Money-Saving Tips for C0964
  • 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 C0964 Diagnosis Process

Follow these systematic steps to accurately diagnose C0964. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection for damaged wiring, loose connections, or corrosion in the vehicle’s communication network (5-10 minutes)

Step 1: Perform an initial visual inspection for damaged wiring, loose connections, or corrosion in the vehicle’s communication network (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 scan the vehicle's OBD2 system, retrieving all codes and freeze frame data to understand the context of the fault (10-15 minutes)

Step 2: Use the GeekOBD APP to scan the vehicle's OBD2 system, retrieving all codes and freeze frame data to 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: Test suspected components with a multimeter or other diagnostic tools to confirm functionality and communication integrity (20-30 minutes)

Step 3: Test suspected components with a multimeter or other diagnostic tools to confirm functionality and communication integrity (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: Conduct a system function test to verify the proper operation after repairs and clear the codes from the system (10-15 minutes)

Step 4: Conduct a system function test to verify the proper operation after repairs and clear the codes from the system (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: Perform a road test under various conditions to confirm that the repair was successful and that the C0964 code does not reappear (15-20 minutes)

Step 5: Perform a road test under various conditions to confirm that the repair was successful and that the C0964 code does not reappear (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: Wiring Repair on 2018 Ford Explorer

Vehicle: 2018 Ford Explorer, 45,000 miles

Problem: Owner reported the check engine light was on and experienced engine hesitations.

Diagnosis: Performed an OBD2 scan and found C0964. Initial inspection revealed corroded wiring in the communication harness.

Solution: Repaired the damaged wiring and reconnected loose terminals.

Cost: $250 for parts and labor

Result: Check engine light cleared, and the vehicle performed smoothly after repair.

Case Study 2: Control Module Replacement on 2017 Chevrolet Silverado

Vehicle: 2017 Chevrolet Silverado, 60,000 miles

Problem: Customer complained of erratic transmission shifts and warning lights.

Diagnosis: Scanned for DTCs, confirmed C0964, and tested the control modules with a multimeter, finding the transmission control module faulty.

Solution: Replaced the faulty control module and updated the vehicle's software.

Cost: $1,000 (including parts and labor)

Result: Vehicle shifted smoothly post-repair, with no warning lights present.

Diagnose C0964

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: C0964
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes