P0955Auto Shift Manual Mode Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- Fault in the circuit that tells the transmission control whether the driver has moved the selector lever from D into the manual gate. A Nissan patent shows a dedicated manual mode switch with two contacts on separate inputs, so a break or a short to ground can be told apart; a Hyundai patent uses a microswitch on the lever. Genesis bulletins for 2017-18 G80 and G90 automatics list Auto Shift Manual Mode Circuit for the cable-shift version, with a check engine light and a part from the shift lever group as repair, though the table prints the code as P0995 and P095500. So at least Hyundai uses ASM for the manual mode of a torque converter automatic. P0956 to P0959 are the detailed variants, P0950 the up/down request circuit.
- What you may notice
- Manual mode cannot be selected or is not displayed
- Check engine or transmission warning light on
- Driving in D remains possible
- Likely causes
- LikelyFailed manual mode switch or microswitch in the selector lever
- PossibleCorroded or loose connector at the selector lever assembly
- PossibleDamaged wiring between selector lever and transmission control module
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.