U0357 - Understanding the Communication Error in Your Vehicle's Control Modules

Quick Answer

U0357 means: U0357 indicates a communication fault between your vehicle's control modules.

Fix: Check and replace faulty components Cost: $300 - $800 Time: 90-180 minutes

Can I drive with U0357? Immediate attention is recommended to ensure vehicle safety and functionality.

Common Questions

What does U0357 mean and how does it affect my car?

The U0357 code indicates a communication error between your vehicle's control modules, which can lead to issues with power steering and stability control. If you notice warning lights on your dashboard or steering problems, it's essential to address this issue promptly to maintain your vehicle's safety and performance.

What are the most common causes of U0357 and how much does it cost to fix?

The most common causes of U0357 include a faulty control module, damaged wiring, and battery voltage issues. Repair costs can vary widely, typically ranging from $100 for wiring repairs to $800 for control module replacement.

Can I drive my car with U0357 or should I stop immediately?

While you may be able to drive the vehicle with the U0357 code, it is not recommended due to potential steering and stability control issues. It's best to have the vehicle inspected as soon as possible to ensure your safety.

How can I diagnose U0357 myself using GeekOBD APP?

To diagnose U0357 with the GeekOBD APP, connect the app to your vehicle's OBD2 port, scan for codes, and review freeze-frame data. This will help you understand the conditions under which the code was triggered, allowing for a more accurate diagnosis.

What vehicles are most commonly affected by U0357?

U0357 is commonly found in vehicles such as the 2011-2014 Ford Explorer, 2014-2018 Chevrolet Silverado, and various models from Toyota and Honda. Always check for any recalls or Technical Service Bulletins (TSBs) related to this code.

How can I prevent U0357 from happening again?

To prevent U0357 from recurring, regularly inspect your vehicle's wiring and connectors for damage, keep the battery in good condition, and ensure that software updates are performed as recommended by your vehicle manufacturer.

What is U0357?

The U0357 code is a diagnostic trouble code (DTC) that indicates a communication issue between your vehicle's control modules, specifically referencing a malfunction with the control module for your vehicle's power steering or stability control system. When this code is triggered, it means that the control module is unable to communicate effectively with other modules in the network, which can lead to issues with vehicle stability, steering, and other critical systems. This problem can arise from various factors such as faulty wiring, a defective module, or even issues with the vehicle's power supply. For car owners, this code can present serious implications for vehicle performance, as it may lead to symptoms like a loss of power steering, warning lights on the dashboard, or even reduced vehicle stability during driving. If left unaddressed, U0357 can potentially escalate into more severe issues, affecting the overall safety and reliability of the vehicle. Common makes and models that exhibit this code include the Ford Explorer (2011-2014), Chevrolet Silverado (2014-2018), and various models from Toyota and Honda during the same years. Addressing this issue promptly can save you from costly repairs down the road and ensure your vehicle remains safe and dependable.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0357 is present:

  • Check engine light stays on constantly, indicating a persistent communication error.
  • Vehicle steering feels heavy or unresponsive, affecting driving safety and comfort.
  • Dashboard warning lights for power steering or stability control illuminate intermittently.
  • Reduced fuel efficiency may occur as the vehicle's systems are not operating optimally.
  • Random electrical issues may arise, such as malfunctioning interior lights or radio.

Possible Causes

Most common causes of U0357 (ordered by frequency):

  1. Faulty control module (40% likelihood) - A common issue where the steering or stability control module fails, leading to communication loss.
  2. Damaged wiring or connectors (30% likelihood) - Corrosion or breakage in the wiring harness can interrupt the signal between modules.
  3. Battery voltage issues (20% likelihood) - Low voltage or fluctuating power supply can affect module communication.
  4. Software glitches (5% likelihood) - Outdated software in the control modules may cause miscommunication.
  5. External electrical interference (5% likelihood) - Aftermarket installations or modifications may disrupt normal communication.

U0357 Repair Costs

Cost Breakdown by Repair Type

Control Module Replacement

Replacing the defective control module that is causing communication issues.

  • Total: $300 - $800
  • Success rate: 85%
Wiring Repair

Repairing damaged wiring or connectors that affect signal transmission.

  • Total: $100 - $300
  • Success rate: 90%
Software Update

Updating the vehicle's software to resolve communication errors.

  • Total: $50 - $150
  • Success rate: 75%
Money-Saving Tips for U0357
  • 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 U0357 Diagnosis Process

Follow these systematic steps to accurately diagnose U0357. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (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: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze-frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze-frame data to understand the fault context (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: Component testing - Use a multimeter to test voltage and continuity in suspected wiring (20-30 minutes)

Step 3: Component testing - Use a multimeter to test voltage and continuity in suspected wiring (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: Module reprogramming - If necessary, update or reprogram control modules to ensure they are communicating properly (30-60 minutes)

Step 4: Module reprogramming - If necessary, update or reprogram control modules to ensure they are communicating properly (30-60 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 verification - Drive the vehicle under various conditions to confirm that the issue has been resolved (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the issue has been resolved (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: Resolving U0357 in a 2013 Ford Explorer

Vehicle: 2013 Ford Explorer, 75,000 miles

Problem: Customer reported heavy steering and a persistent check engine light.

Diagnosis: After scanning the vehicle with the GeekOBD APP, the U0357 code was confirmed. A visual inspection revealed damaged wiring connecting the power steering module.

Solution: Replaced the damaged wiring and reprogrammed the control module to restore proper communication.

Cost: $350 (including parts and labor)

Result: The vehicle's steering returned to normal operation, and the check engine light was cleared.

Case Study 2: Fixing U0357 in a 2015 Chevrolet Silverado

Vehicle: 2015 Chevrolet Silverado, 50,000 miles

Problem: Customer experienced intermittent steering issues and dashboard warning lights.

Diagnosis: Diagnostics revealed U0357 along with other codes. Testing showed a faulty control module was the primary issue.

Solution: Replaced the control module and updated the vehicle software.

Cost: $700 (including parts and labor)

Result: The steering was fully restored, and all warning lights remained off post-repair.

Diagnose U0357

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: U0357
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes