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Saturn · Suspension · Moderate code

U0131 on Saturn: How to Diagnose & Fix

Lost Communication with Power Steering Module

1 Saturn model · 1 documented issue · 1 critical

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U0131 by Saturn model

  • 2003-2007Ion1
  • FAQ

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U0131 by Saturn model

  • 2003-2007Ion1
  • FAQ

U0131 on Saturn by model: symptoms, diagnosis and fix

Link to this issueError Codes:C0545U0131

NHTSA recall 14V-153 covers 2003-2007 Ion, 2005-2010 Cobalt, 2007-2010 Pontiac G5, 2003-2006 Pontiac Pursuit (Canada), 2008-2009 HHR for sudden loss of electric power steering assist. ~1.3 million vehicles affected. Remedy is replacement of the EPS motor or torque sensor.

Common Symptoms

  • power steering warning
  • sudden heavy steering
  • EPS fault

How to Fix

Check VIN at NHTSA recall lookup (14V-153). Repair is free under recall. If you experience sudden loss of assist, control is still possible but steering becomes very heavy — pull over safely and request roadside assistance. Do not attempt independent repair until recall status is confirmed.

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Call to confirm they service Saturn vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Typical repair cost:$0 - $0

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U0131 code reference

General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.

Frequently asked questions

What does U0131 mean on a Saturn?

U0131 stands for "Lost Communication with Power Steering Module." This is a network communication code meaning the vehicle's computers have lost communication with the power steering control module over the data bus (CAN). Modern cars link control modules so they can share data, and this code sets when other modules stop receiving expected messages from the power steering unit. The most common result is loss or reduction of power-assisted steering, making the wheel feel heavy, along with a warning light. It generally points to a wiring/connector or power problem at the steering module, a bus fault, or a failed module rather than a mechanical steering issue. On Saturn it is documented across 1 model: Ion.

What are the most common causes of U0131?

The most common causes of U0131 are: Loss of power or ground to the power steering module, Open or shorted CAN bus wiring to the module, Corroded or loose connector at the steering module, Blown fuse feeding the power steering system, Failed power steering control module, Other module or wiring fault disrupting the data bus, Software/configuration mismatch after a repair. The specific cause varies by vehicle.

How much does it cost to fix U0131 on a Saturn?

Repair costs vary widely with the root cause and Saturn model; each issue on this page carries its own estimate where one is published.

Related codes

  • U0136 · Lost Communication With Differential Control Module – Rear
  • C0327 · Excessive Lateral Acceleration Sensor Rate
  • C0710 · Steering Position Sensor
  • C1725 · Steering Torque Sensor Circuit
  • C1726 · Steering Torque Sensor Signal Invalid
  • C1727 · EPS Motor Circuit Malfunction
  • C1728 · EPS Motor Over-Temperature

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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.

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