Quick Answer
U0168 means: U0168 indicates a communication failure between the steering column control module and the engine control module.
Can I drive with U0168? Immediate attention is recommended to ensure vehicle safety.
Common Questions
What does U0168 mean and how does it affect my car?
The U0168 code signifies a communication failure between your vehicle's steering column control module and the engine control module. This can severely impact your vehicle's safety features, including power steering and airbags. If left unresolved, it could lead to handling problems and increase the risk of accidents.
What are the most common causes of U0168 and how much does it cost to fix?
The most frequent cause of U0168 is a faulty steering column control module, which could cost between $300 and $600 to replace. Damaged wiring or poor connections also contribute to this code, with repair costs ranging from $100 to $300. Addressing these issues promptly can save you from more expensive repairs down the line.
Can I drive my car with U0168 or should I stop immediately?
Driving your car with a U0168 code is not safe, as it may compromise your steering and safety systems. It’s advisable to stop driving and consult a professional mechanic as soon as possible to avoid potential accidents.
How can I diagnose U0168 myself using GeekOBD APP?
To diagnose U0168 using the GeekOBD APP, start by performing an OBD2 scan to retrieve the fault codes. Then, access the freeze frame data to understand the context of the failure. This will guide you in identifying the specific module or wiring that may be at fault.
What vehicles are most commonly affected by U0168?
The U0168 code is frequently seen in models like the 2015-2018 Ford F-150, 2016-2019 Chevrolet Silverado, and 2017-2019 Dodge Ram. These vehicles have been reported to have issues with the steering column control module, making it crucial for owners to be vigilant about this code.
How can I prevent U0168 from happening again?
To prevent U0168 from recurring, regularly inspect wiring and connectors for signs of wear or corrosion. Keeping the vehicle's software updated and ensuring proper grounding can also mitigate future issues. Routine maintenance and prompt attention to warning lights can save you from larger problems.
What is U0168?
The diagnostic trouble code (DTC) U0168 indicates a communication malfunction between the engine control module (ECM) and the steering column control module (SCCM). This code is prevalent in several vehicle makes, particularly in models from Ford, Chevrolet, and Dodge, produced between 2015 and 2020. When the SCCM fails to communicate with the ECM, various functions, such as power steering, airbag deployment, and stability control, may be affected. This could lead to safety issues while driving, such as unresponsive steering or malfunctioning safety features. Drivers may notice symptoms like warning lights on the dashboard or unusual steering behavior. It's crucial to address this code promptly, as ignoring it could lead to more severe mechanical failures or safety hazards on the road. Since the steering column control module plays a critical role in vehicle safety systems, ensuring proper communication between modules is essential for safe vehicle operation.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0168 is present:
- The check engine light may illuminate, signaling a communication issue that requires immediate attention.
- Drivers may experience steering difficulties, such as stiffness or resistance, which can compromise handling.
- Unresponsive safety features like airbags or electronic stability control may indicate a deeper communication problem.
- The vehicle may enter 'limp mode,' restricting performance and limiting speed as a safety precaution.
- Frequent error messages or warning lights on the dashboard could be indicative of the underlying issue.
Possible Causes
Most common causes of U0168 (ordered by frequency):
- The most common cause of U0168 is a faulty steering column control module, which accounts for approximately 60% of cases. This can stem from electrical failures or physical damage from impacts.
- A second common cause is damaged wiring or connectors between the SCCM and ECM. This could result from wear and tear or exposure to moisture, leading to corrosion.
- Poor ground connections may also lead to U0168. Ensuring all connections are clean and secure can prevent this issue from arising.
- Less common but serious causes include software glitches within the ECU or SCCM, which may require a software update or reprogramming.
- Rarely, U0168 can be triggered by a faulty engine control module, which may necessitate replacement if all other components are functioning correctly.
U0168 Repair Costs
Cost Breakdown by Repair Type
Steering Column Control Module Replacement
Replacing the faulty steering column control module to restore communication.
- Total: $300 - $600
- Success rate: 85%
Repairing Wiring Issues
Fixing damaged wiring or connections between the ECM and SCCM.
- Total: $100 - $300
- Success rate: 75%
ECM Reprogramming
Updating or reprogramming the engine control module to resolve software issues.
- Total: $150 - $250
- Success rate: 70%
Money-Saving Tips for U0168
- 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 U0168 Diagnosis Process
Follow these systematic steps to accurately diagnose U0168. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Perform a visual inspection to check for obvious signs of damage, such as frayed wires or corroded connectors (5-10 minutes)
Step 1: Perform a visual inspection to check for obvious signs of damage, such as frayed wires or corroded connectors (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to run an OBD2 scan and retrieve all stored trouble codes, allowing for a comprehensive understanding of the issue (10-15 minutes)
Step 2: Use the GeekOBD APP to run an OBD2 scan and retrieve all stored trouble codes, allowing for a comprehensive understanding of the issue (10-15 minutes).
Step 3: Step 3: Conduct component testing, utilizing a multimeter to assess the SCCM and ECM for proper voltage and ground connections (20-30 minutes)
Step 3: Conduct component testing, utilizing a multimeter to assess the SCCM and ECM for proper voltage and ground connections (20-30 minutes).
Step 4: Step 4: Execute a system function test to confirm that all modules are communicating correctly after any repairs and clear any fault codes (10-15 minutes)
Step 4: Execute a system function test to confirm that all modules are communicating correctly after any repairs and clear any fault codes (10-15 minutes).
Step 5: Step 5: Perform a road test under various driving conditions to ensure that repairs were successful and the steering system is functioning as expected (15-20 minutes)
Step 5: Perform a road test under various driving conditions to ensure that repairs were successful and the steering system is functioning as expected (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: Steering Column Control Module Replacement in a 2017 Ford F-150
Vehicle: 2017 Ford F-150, 45,000 miles
Problem: Customer reported steering stiffness and intermittent warning lights on the dashboard.
Diagnosis: After running diagnostics with the GeekOBD APP, U0168 was the primary code retrieved, indicating a communication failure.
Solution: Replaced the faulty steering column control module and reset the system.
Cost: $500 (parts: $400 for module, labor: $100)
Result: The vehicle was road-tested, and all steering functions returned to normal.
Case Study 2: Wiring Repair on a 2016 Chevrolet Silverado
Vehicle: 2016 Chevrolet Silverado, 35,000 miles
Problem: Owner experienced random loss of steering assist and dashboard alerts.
Diagnosis: Diagnostic scan revealed U0168. Visual inspection showed frayed wiring near the SCCM.
Solution: Repaired the damaged wiring and ensured all connectors were secure.
Cost: $150 (parts: $30 for connectors, labor: $120)
Result: Post-repair, the steering issues were resolved, and no further codes appeared.