P0759
Shift Solenoid "B" Intermittent
- Severity
- High
- Driving
- Drive only to a garage
The circuit for shift solenoid "B" is faulting intermittently. The transmission drives normally most of the time and then shifts badly or drops into limp mode, usually recovering after the engine is switched off and restarted. As with all intermittent circuit faults, look at connections before components.
Possible causes
- CommonLoose or corroded pin at the transmission case connector
- CommonFluid wicking into the connector
- CommonInternal transmission harness beginning to fail
- PossibleSolenoid dropping out when hot
- PossibleChafed wiring making intermittent contact
What you might notice
- Occasional limp mode that clears after a restart
- Shift quality varying between journeys
- Symptoms appearing only once the transmission is hot
- Check engine light coming and going
What to check, in order
- Note whether it only happens hot. A fault that appears after twenty minutes and is gone the next morning points at the internal harness or the solenoid.
- Record the freeze frame data. The fluid temperature at the moment the code set is often the most useful clue available.
- Pull the case connector and inspect for fluid and corrosion.
- Wiggle-test the external harness with the live data screen showing solenoid status.
- Check the fluid level and condition.
- Do not commit to internal repairs until the external wiring and connector are cleared.
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
P0700P0701P0702P0703P0704P0705P0706P0707P0708P0709P0710P0711P0712P0713P0714P0715P0716P0717P0718P0719P0720P0721P0722P0723P0724P0725P0726P0727P0728P0729P0730P0731P0732P0733P0734P0735P0736P0737P0738P0739P0740P0741P0742P0743P0744P0745P0746P0747P0748P0749P0750P0751P0752P0753P0754P0755P0756P0757P0758P0759P0760P0761P0762P0763P0764P0765P0766P0767P0768P0769P0770P0771P0772P0773P0774P0775P0776P0777P0778P0779P0780P0781P0782P0783P0784P0785P0786P0787P0788P0789P0790P0791P0792P0793P0794P0795P0796P0797P0798P0799