RAS/4WAS issue, motor moves rack to one side

A forum for lovers of Infiniti's hot-rod crossover, the FX! In 2014, all FX models will be named Infiniti QX70, in line with Infiniti's new naming structure.
Mexxxx
Posts: 2
Joined: Tue Dec 02, 2025 11:03 am
Car: ???? Infiniti FX30d S

Post

Hello everyone :wavey: I'm a new owner of a 2013 Infiniti FX30DS. The rear active steering RAS electric motor failed, which was repaired at a specialist workshop. After connecting the motor, clearing the fault codes, setting the rear sensor to 2.4v sub and 2.4v main, and calibrating the steering angle in Consult3Plus, immediately after turning on the ignition or starting the engine, the rear rack moves wheels fully one way, followed by the RAS error message. The only thing I can do is manually set the rear axle to the straight position according to the service manual (and the steering angle sensor to 2.4v). Then, when I start the car, the rear wheels steer immediately to one side again. I've also tried to replace the rear axle controller and relay, without success. Can you experts help me please? I'm out of ideas. :confused:


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