U0320Software Incompatibility With Power Steering Control Module
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- The power steering control module drives the electric assist motor and needs calibration data that suit the steering gear and the vehicle. U0320 is logged when another module refuses to work with its software. No manufacturer documents U0320 publicly, but GM and Volkswagen show the background. GM preliminary information PIC5771 for the 2013 Buick LaCrosse with NJ2 steering reports that after a gear replacement the module often refused programming and set C056E symptom 42, calibration not programmed, so Techline had to supply the data. Volkswagen cured weak assist on 2010–2013 Golf, Jetta, Passat and Beetle by new J500 software, followed by basic settings of steering and angle sensor. U0131 is lost contact, U0420 invalid data, U0319 concerns the steering effort module. Steering may turn heavy with a warning lamp.
- What you may notice
- Steering heavy or assist only partly available
- Power steering warning lamp or message
- Lane keeping or park steering functions switched off
- Likely causes
- LikelySteering gear or steering module replaced without loading matching calibration
- PossibleSteering module software older than required by the other modules
- PossibleBasic setting or adaptation after programming not carried out
- RareProgramming disturbed by voltage drop
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.