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, and the letter is not tied to a valve number (Saab's Aisin 9-5: C = valve S4, D = valve S5). P0763 is the collective electrical code for solenoid C. GM's 2006 Allison tables flag a driver hardware fault for more than 0.1 s with the solenoid on or off, after one trip; Saab's Aisin 5-speed (valve S4) checks current draw with fluid above 20 °C and shows 'check gearbox'; Hyundai's 8-speed uses it for the 3-5-reverse clutch valve and replaces valve and electronic module, then the module if it returns. Ford does not use P0763.
Medium severity. Can I keep driving?Drive as little as possible and gently. If the transmission slips or stays in one gear, go slowly to a repair shop or call for a tow truck.
Symptoms
- Check engine or transmission warning lamp
- Limp mode in a fixed gear (Ford: fifth with maximum pressure)
- Harsh shifts
Most likely causes
- Open or corroded wire, connector or internal harness
- Solenoid coil open or shorted
- Solenoid supply (high-side switch) missing
- Module driver faulty
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
- It can trigger limp mode.
- It affects emissions.
What each character of P0763 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- 7: Transmission
- 63: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0763?
Drive as little as possible and gently. If the transmission slips or stays in one gear, go slowly to a repair shop or call for a tow truck.
What causes code P0763?
The most common causes are: open or corroded wire, connector or internal harness; solenoid coil open or shorted; solenoid supply (high-side switch) missing.
Related codes
- P0979Shift Solenoid C Control Circuit Low
- P0980Shift Solenoid C Control Circuit High
- P0760Shift Solenoid C
- P0764Shift Solenoid C Intermittent
- P0761Shift Solenoid C Performance/Stuck Off
- P0768Shift Solenoid D Electrical
Sources
- gsi.ext.gm.com: 2006trans9
- saabwisonline.com: p0763
- static.nhtsa.gov: MC 10160100 9999
- static.nhtsa.gov: MC 10202185 0001
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.