P0750: Shift solenoid "A" malfunction
A shift solenoid in the automatic gearbox (A to E: the code says which) has an electrical fault, or doesn’t do what it’s told (stuck off or on). The gearbox may skip gears or stay in one gear (limp mode).
Updated
What P0750 means
An automatic gearbox changes gear by steering oil pressure to its clutches. Solenoid valves, switched by the gearbox module, do the steering: the shift solenoids, lettered A, B, C and so on.
P0750 means shift solenoid A has a fault. Which gears each solenoid affects depends on the gearbox; the service information for your gearbox has the table.
P0751 to P0770: solenoids A to E
Each solenoid has a block of five codes: a general fault, then performance or stuck off, stuck on, electrical and intermittent. P0750 to P0754 are solenoid A, P0755 to P0759 solenoid B, P0760 to P0764 solenoid C, P0765 to P0769 solenoid D, and P0770 is solenoid E. A stuck solenoid can be mechanical, often from dirty oil; an electrical code points to the solenoid’s coil or its wiring.
P0751: Shift Solenoid A Performance/Stuck Off
P0752: Shift Solenoid A Stuck On
P0753: Shift Solenoid A Electrical
P0754: Shift Solenoid A Intermittent
P0755: Shift solenoid "B" malfunction
P0756: Shift Solenoid B Performance/Stuck Off
P0757: Shift Solenoid B Stuck On
P0758: Shift Solenoid B Electrical
P0759: Shift Solenoid B Intermittent
P0760: Shift Solenoid C
P0761: Shift Solenoid C Performance/Stuck Off
P0762: Shift Solenoid C Stuck On
P0763: Shift Solenoid C Electrical
P0764: Shift Solenoid C Intermittent
P0765: Shift Solenoid D
P0766: Shift Solenoid D Performance/Stuck Off
P0767: Shift Solenoid D Stuck On
P0768: Shift Solenoid D Electrical
P0769: Shift Solenoid D Intermittent
P0770: Shift Solenoid E
Can I keep driving?
Drive gently
Drive gently and only as far as you need to, and have it checked soon. The gearbox may shift harshly or stay in one gear (limp mode), so avoid motorways and overtaking until it’s fixed. If it slips, won’t change gear or won’t drive, don’t force it: have it recovered.
General guidance based on the code alone, not on the car’s actual condition. If in doubt, stop and ask a mechanic.
Many gearboxes switch to limp mode with a solenoid fault, staying in one gear so the car can still be driven slowly. Read My Car shows codes from the gearbox module next to the engine’s, where the car shares them over generic OBD2.
Symptoms
- The gearbox skips gears, or won’t shift into certain gears.
- It stays in one gear (limp mode), with a slow pull-away.
- Harsh or delayed engagement into drive or into certain gears.
Common causes
- Faulty shift solenoid. An open or shorted coil gives an electrical code. On many gearboxes the solenoids come as a pack or with the valve body.
- Wiring or connector fault at the gearbox, or inside it. Check the connector on the gearbox case first: it’s the easiest to reach.
- Low, old or contaminated gearbox oil, which can make a solenoid stick. Then the code is often “stuck on” or “stuck off”, and an oil change may help.
Typical fixes
- Read all codes, including any the gearbox module reports.
- Have the gearbox oil level and condition checked, as the service information for your gearbox describes.
- Have the solenoid’s resistance and wiring checked. A garage can also switch it with a tool for your make; Read My Car can’t.
- Replace the solenoid, the solenoid pack or the valve body as the tests show.
Questions
Can I drive with P0750?
Gently, and only as far as you need to, and have it checked soon. The gearbox may shift harshly or stay in one gear, so avoid motorways and overtaking. If it slips, won’t change gear or won’t drive, don’t force it: have it recovered.
Which gears does shift solenoid A affect?
It depends on the gearbox. The service information for your gearbox has a table of which solenoids are switched on in each gear.