P081DNeutral Input Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P081D concerns the input 'neutral' – the N contact of the selector or range switch, on manual cars a neutral switch or sensor for start-stop. Neutral serves for starter release, idle control without load, start-stop release and enabling other diagnostics. The check would be a circuit or plausibility test against the range sensor or speed ratio. No manufacturer document available to us uses P081D; its sister P081C is documented on the Jeep Compass, and Saab's range switch shows that P and N are the two start positions. The engine may then not start in N, start-stop is disabled and idle diagnostics may be suspended.
- What you may notice
- Engine does not start in N (only in P)
- Start-stop not working
- Range display does not show N
- Likely causes
- LikelyNeutral contact, range switch or neutral sensor faulty or misadjusted
- PossibleSelector or shift cable misadjusted
- PossibleWire or connector
- RareControl module or software
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.