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U0151: Lost Communication With Restraints Control Module

Severity
Low
NHTSA Reports
7
Vehicles Affected
6
System
Powertrain

What Does U0151 Mean?

U0151 is a diagnostic trouble code indicating: Lost Communication With Restraints Control Module. This code relates to the network communication system. It has been reported in NHTSA complaints across 6 different vehicle models.

Symptoms of U0151

Common Causes

U0151 Reports by Year

2024
3
2025
2
2014
1
2023
1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"Randomly whilst driving, my dash had multiple error messages pop up and my power steering went out completely. The error messages were as follows: Service AdvanceTrac, Terrain Management System Fault, Hill Start Assist Not Available, & Power Steering Assit Fault. This keeps happening intermittently,"

— Ford Explorer owner, 08/26/2024

"I am reporting a safety-related defect involving the electric power steering system on my 2017 Ford Explorer. The vehicle displays a “Steering System Fault” warning, and when this occurs the power steering assist is reduced or disabled, creating a safety risk during low-speed driving, turning, and p"

— Ford Explorer owner, 12/11/2025

"The engine makes a very loud ticking and whirring sound, there are also quite a few electrical components that will not communicate with the PCM causing errors on the vehicle code such as a switch component failure U2002-96 Battery voltage circuit below and above threshold U3003-16 and U3003-17, ele"

— Ford Fusion owner, 02/06/2024

Source: NHTSA Complaints Database

Most Reported Vehicles for U0151

Based on NHTSA owner complaint data.

U0151 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

Frequently Asked Questions

What causes communication codes?
Usually a wiring issue, corroded connector, failed module, or dead battery. The CAN bus network connects all your car's computers.
Can a bad battery cause network codes?
Yes. Low voltage can cause communication failures between modules. Always check battery health first — it's the cheapest potential fix.

What To Do Next

Possible Fixes

  • 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
  • 🔧 Test the relevant sensor(s) with a multimeter before replacing
  • 🔧 Inspect wiring harness and connectors for damage, corrosion, or loose connections
  • 🔧 Check battery voltage and ground connections; inspect CAN bus wiring
  • 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

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