Quick Answer
C0968 means: C0968 indicates a communication failure within the vehicle's electronic systems.
Can I drive with C0968? Immediate attention is recommended to prevent further issues.
Common Questions
What does C0968 mean and how does it affect my car?
C0968 signals a communication disruption within your vehicle's electronic systems, potentially leading to performance issues and safety risks. If not addressed, it can cause erratic behaviors and other faults.
What are the most common causes of C0968 and how much does it cost to fix?
Common causes include damaged wiring (50% likelihood) and faulty ECUs (30% likelihood). Repair costs can range from $150 for wiring repairs to $1200 for ECU replacement.
Can I drive my car with C0968 or should I stop immediately?
Driving with C0968 is not recommended as it can lead to further issues and safety risks. Consider stopping and diagnosing the problem as soon as possible.
How can I diagnose C0968 myself using GeekOBD APP?
Using the GeekOBD APP, start by scanning for codes to confirm C0968, then check freeze frame data for context, and inspect any related wiring or components.
What vehicles are most commonly affected by C0968?
Common vehicles affected include the 2015-2020 Ford F-150 and various models from manufacturers like Chevrolet and Dodge during similar years.
How can I prevent C0968 from happening again?
Regularly inspect your vehicle's wiring and connectors, maintain a healthy battery, and consider software updates to your ECU to prevent future issues.
What is C0968?
The diagnostic trouble code (DTC) C0968 indicates a malfunction in the vehicle communication bus. This code is typically triggered when the vehicle's electronic control unit (ECU) detects that it cannot communicate with one or more modules over the communication network. The vehicle communication bus is essential for the various electronic modules (like the engine control module, transmission control unit, and ABS module) to exchange information. When this communication is disrupted, it can lead to various performance issues, including erratic engine behavior, malfunctioning safety features, or warning lights appearing on the dashboard. Drivers may notice symptoms like the check engine light illuminating, problems with power steering, or issues with vehicle stability. It's crucial to address this issue promptly, as it can impact the overall functionality and safety of the vehicle. Ignoring this code may lead to more significant problems down the road, resulting in costly repairs and potential safety hazards.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0968 is present:
- Check engine light illuminates and remains on, indicating potential communication issues.
- Power steering may feel unresponsive or inconsistent, affecting driving safety.
- Increased frequency of system malfunctions, such as the ABS light or traction control warning, appearing unexpectedly.
- Vehicle performance may be erratic, including poor acceleration and stalling.
- Unusual noises or vibrations from the vehicle's electronic components while driving.
Possible Causes
Most common causes of C0968 (ordered by frequency):
- The most common cause is damaged wiring or connectors in the communication circuit, with a likelihood of about 50%. This could be due to wear and tear or exposure to moisture.
- A faulty ECU can be the second cause, which may not process signals from other modules correctly, leading to a 30% likelihood of this issue.
- A third cause is low battery voltage, which can disrupt the communication bus; maintaining your battery regularly can help prevent this.
- Less common but serious causes include water intrusion in electronic control units, potentially leading to severe electrical failures.
- A rare cause could be a software glitch in the vehicle's systems, which can sometimes be resolved through software updates.
C0968 Repair Costs
Cost Breakdown by Repair Type
Wiring Repair
Repair or replace damaged wiring or connectors in the communication circuit.
- Total: $150 - $400
- Success rate: 85%
ECU Replacement
Replace the faulty electronic control unit if necessary.
- Total: $500 - $1200
- Success rate: 90%
Battery Replacement
Replace an old or failing battery that may be causing voltage issues.
- Total: $100 - $300
- Success rate: 80%
Money-Saving Tips for C0968
- 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 C0968 Diagnosis Process
Follow these systematic steps to accurately diagnose C0968. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check the vehicle's wiring and connectors for signs of damage, corrosion, or loose connections (5-10 minutes)
Step 1: Initial visual inspection - Check the vehicle's wiring and connectors for signs of damage, corrosion, or loose connections (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data, providing context for the C0968 code (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data, providing context for the C0968 code (10-15 minutes).
Step 3: Step 3: Component testing - Test the suspected faulty components using a multimeter or a specialized diagnostic tool (20-30 minutes)
Step 3: Component testing - Test the suspected faulty components using a multimeter or a specialized diagnostic tool (20-30 minutes).
Step 4: Step 4: System function test - After any repairs, verify the proper operation of the vehicle's systems and clear the codes (10-15 minutes)
Step 4: System function test - After any repairs, verify the proper operation of the vehicle's systems and clear the codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to ensure all systems function as intended and that the C0968 code does not return (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to ensure all systems function as intended and that the C0968 code does not return (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: Ford F-150 C0968 Repair
Vehicle: 2018 Ford F-150, 45,000 miles
Problem: Customer reported check engine light and erratic power steering.
Diagnosis: Visual inspection revealed corrosion in the wiring harness connected to the ECU.
Solution: Replaced damaged sections of the wiring harness and cleaned connections.
Cost: $250
Result: Customer reported no issues post-repair, and the check engine light remained off.
Case Study 2: Chevrolet Silverado Communication Issue
Vehicle: 2017 Chevrolet Silverado, 60,000 miles
Problem: Customer experienced intermittent warning lights and loss of traction control.
Diagnosis: OBD2 scan showed C0968, and further testing indicated a faulty ECU.
Solution: Replaced the ECU and updated vehicle software.
Cost: $1,000
Result: All systems returned to normal function, and the customer was satisfied with the repair.