I can't seem to find good information on a problem I am having with my power steering. My truck is @63125 miles and is giving me multiple alarms on the dash,
Service power steering drive with care, stabilitrak, trailer break (intermittent), traction control light (Intermittent).
Codes:
U0077 - please refer to vehicle service manual
U0452 - invalid data received from restraints control module
U0151 - Lost communication with restraints control module
C0710 - please refer to manual
U0428 - invalid data received steering angle sense module
U0126 - Lost communication with steering angle sensors module
I had the dealership diagnos and they told me there is a short in the power steering unit and that I needed to replace the assembly.... ($1900 for just the part)
Part #:Steering Gear Replaced by Part Number 84532344 - GM (84235647) | GMPartsDirect.com
https://www.gmpartsdirect.com/oem-parts/gm-steering-gear-replaced-by-part-number-84532344-84235647
I trace the wires from the battery to the power on the servo driving the rack and pinion and found no short. I believe the next step is to check the ohms across the motor however I do not know what they should come out at. If any of you know I would appreciate the information. Or if anybody else has experienced a similar problem and has a potential solution. I am hoping it is the steering position sensor.
So I checked out the grounds and they appear to be tight still. Nothing looks corroded either. The wires under the sill plate appear to be in good shape as well... I think they were right about the power steering unit being the problem but I disagree with replacing the whole assembly. https://www.gmpartsbin.com/p/Chevrolet_2014_Silverado-1500/Motor-Kit---Power-Steering-ASST/65129514/23361176.html This is a link for just the motor in the assembly. Is this something that can be replaced without removing the entire assembly?