B0190Front Wiper Park Switch Circuit
- Generic OBD-II code · Body
- How the car detects it
- No known public source lists B0190, neither a J2012 table nor a carmaker document. The part named in the title is common: a cam on the wiper gear opens or closes contacts, so the control knows when the blades are at rest and can keep the motor running until they get there. Controllers also use this signal for protection. In US5694011A a timer set longer than one wipe cycle cuts the motor if the park signal stops changing, which catches blades frozen to the glass; US4320329A treats a missing park position after a cycle as a blocked motor and lengthens the pause. A patent by FCA, US8598828B2, filters the contact signal so noise is not taken for a state change. With a faulty circuit the blades may stop anywhere, keep sweeping after switch-off, or intermittent mode misbehaves.
- What you may notice
- Wipers stop in the field of view instead of at the bottom of the screen
- Wipers keep running after being switched off or intermittent mode fails
- Likely causes
- LikelyPark contacts in the wiper motor gear housing worn, dirty or corroded by water
- PossiblePark signal wire or connector at the wiper motor open or shorted
- RareFuse or relay in the park supply circuit failed
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.