P0956
Auto Shift Manual Mode Circuit Range/Performance
- Severity
- Low
- Driving
- No driving restriction
The auto shift manual mode circuit is answering but its reading is implausible - manual mode reported when the selector is not there, or a mode state that does not match the selector position. Usually a worn or contaminated selector rather than a wiring fault.
Possible causes
- CommonWorn switch contacts giving an ambiguous reading
- CommonDrink or dirt in the selector assembly
- CommonWorn selector gate mechanism
- PossibleWiring fault causing a partial short between circuits
- RareFailed control module input
What you might notice
- Manual mode engaging or disengaging on its own
- Mode indicator disagreeing with the selector
- Shifts ignored or unexpected
- Check engine light on
What to check, in order
- Move the selector slowly between modes while watching the reported state. Look for a position that reads ambiguously - the classic sign of worn contacts.
- Inspect the selector for spilled drink.
- Check the gate mechanism for wear and free play.
- Inspect the connector for a partial short between adjacent pins.
- Check for other selector codes stored alongside.
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.
Where this code sits
P00xxP01xxP02xxP03xxP04xxP05xxP06xxP07xxP08xxP09xxP0AxxP0BxxP0CxxP0DxxP0ExxP0FxxP10xxP11xxP12xxP13xxP14xxP15xxP16xxP17xxP18xxP19xxP1AxxP1BxxP1CxxP1DxxP1ExxP1FxxP20xxP21xxP22xxP23xxP24xxP25xxP26xxP27xxP28xxP29xxP2AxxP2BxxP2CxxP2DxxP2ExxP2FxxP30xxP31xxP32xxP33xxP34xxP35xxP36xxP37xxP38xxP39xxP3AxxP3BxxP3CxxP3DxxP3ExxP3Fxx
Transmission and control modules
P0900P0901P0902P0903P0904P0905P0906P0907P0908P0909P0910P0911P0912P0913P0914P0915P0916P0917P0918P0919P0920P0921P0922P0923P0924P0925P0926P0927P0928P0929P0930P0931P0932P0933P0934P0935P0936P0937P0938P0939P0940P0941P0942P0943P0944P0945P0946P0947P0948P0949P0950P0951P0952P0953P0954P0955P0956P0957P0958P0959P0960P0961P0962P0963P0964P0965P0966P0967P0968P0969P0970P0971P0972P0973P0974P0975P0976P0977P0978P0979P0980P0981P0982P0983P0984P0985P0986P0987P0988P0989P0990P0991P0992P0993P0994P0995P0996P0997P0998P0999