P0759 code meaning
Shift Solenoid B Intermittent
Powertrain system Generic code P07xx codes Check engine light
What P0759 means
A shift solenoid is an electrically switched valve in the valve body. Manufacturers use these codes differently: Ford reports an open circuit with the base code and shorts separately, newer GM units have separate low/high codes, and the letter is not tied to a valve number (Saab's 9-5: A = valve S2). P0759 is an intermittent fault of solenoid B: the feedback briefly shows a fault and then recovers. No manufacturer document available to us uses this code: Ford watches its solenoid circuits continuously under the open and short codes, GM counts failures over a window (more than 43 of 50) under P0758. Brief dropouts make the module switch the solenoid off and enter limp mode until the next start.
P0759 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P0759
- Limp mode or jolt at times, then normal again
- Warning lamp comes and goes
Common causes of P0759
- Most likelyLoose contact or corrosion at the transmission connector
- PossibleChafed harness, dependent on temperature or vibration
- Less likelyCoil with heat-dependent winding fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Shift solenoidTransmission valve bodyTransmission wiringTransmission control module
What each part of P0759 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7 | Area: transmission. |
| 59 | The exact fault in that area. |
What to do next
- Note P0759 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0759
What does P0759 mean?
P0759 means "Shift Solenoid B Intermittent". A shift solenoid is an electrically switched valve in the valve body. It is a generic code, so it means the same on every make.
Is it safe to drive with P0759?
Drive gently and only to a workshop. With P0759 the car can go into limp mode (reduced power) to protect itself.
Will P0759 fail an emissions test?
Yes, it can. P0759 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0759 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0759 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.