U0428: U0428 is a generic network code: a module received invalid data from the steering angle sensor or steering angle control module, which stability control and power steering rely on

Most likely causes

What to test first

Start at step 1. Each result tells you what it means and where to go next.

1. 1

   Step 1: Read every stored code from all modules and note whether steering, stability or C1B00 codes are also stored.

   Low riskTool: scan tool that reads all modules

   • IfSteering or stability codes are stored together with U0428

     It meansThe steering angle data path is the likely problem; a technician should test it.

     Go to step 2

   • IfMany network codes are stored at once

     It meansLook for a wider power, ground or network fault.

     Go to step 2

2. 2

   Step 2: Have a technician check the steering angle sensor signal, its power and ground, and look for a software bulletin for the exact car.

   Best left to a shop

   Warning:Steering repairs and calibrations affect vehicle control; leave testing and repair to a trained technician.

   • IfThe sensor or steering rack tests bad

     It meansA technician replaces and calibrates it.

     Points to: Steering angle sensor or steering rack fault

   • IfA software bulletin applies

     It meansUpdate the software.

     Points to: Software update for the powertrain computer

   • IfA wiring or power fault is found

     It meansRepair the circuit and recheck.

     Points to: Network wiring or power problem

Symptoms

• Stability, traction or Advance Trac warnings
• Steering wheel locks, turns hard or feels unresponsive Gets more serious: stop and have it checked.
• Check engine light with U0428

How to fix

This is a safety-critical system, so we explain the code but don't give repair steps. Have it inspected by a qualified technician.

On your vehicle

Related codes

• U0131Lost communication with the power steering control module

  Same system Supported by vehicle data

  U0131 was stored with U0428 on a 2014 Cherokee with steering lock-up.

• C1B00Steering angle sensor signal invalid or not calibrated (Ford, Lincoln)

  Primary / secondary Supported by vehicle data

  Likely primary: C1B00. C1B00 was stored with U0428-20 on a 2012 F-150 whose dealer blamed the steering sensor.

All Module network (CAN bus) communication codes