U150F on Opel: How to Diagnose & Fix

U150F stands for "Radio Controls Info Display Module Lost Communication With Human Machine Interface Control Module on LIN Bus." U150F is a network communication (U-code) DTC most commonly found on GM vehicles (Chevrolet, Buick, GMC, Cadillac). It sets when the Radio Controls Info Display Module stops receiving the expected periodic messages from the Human Machine Interface (HMI) Control Module over the single-wire LIN serial data bus. It indicates a loss of communication that can disable or impair radio/infotainment controls and dashboard display functions. On Opel it is documented across 1 model: Insignia.

The most common causes of U150F are: Faulty or low-voltage Human Machine Interface (HMI) control module — the master device on the LIN circuit, Open, shorted, or corroded wiring/connectors in the LIN serial data bus circuit, Failed Radio Controls Info Display Module (the receiving node), Loss of power or ground to one of the networked modules (blown fuse, poor ground), Low system/battery voltage or a weak battery disrupting bus communication, Software/calibration mismatch or a module needing reprogramming after service or part replacement. The specific cause varies by vehicle.

Published repair estimates on Opel range from $330 to $1,600 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.