Sprinter Error 9390 (2025)

: A defect in the passenger seat occupancy mat or its wiring.

On NCV3 Sprinters, the CAN C bus connects the SAS (steering column) to the ESP module (under the driver seat). Chafing of the wiring harness near the steering column adjustment lever or corrosion in the X30/11 connector is a known factory defect. sprinter error 9390

Do not ignore this error hoping the ECU will “re-learn” on its own. It will not. By following this guide, you can resolve Error 9390 in an afternoon and restore your Sprinter’s full power, cruise control, and safety systems. : A defect in the passenger seat occupancy mat or its wiring

: Moisture exposure under the seats can lead to oxidized pins in the yellow SRS connectors, increasing electrical resistance. increasing electrical resistance.