Shift Solenoid C Malfunction
What it means
The transmission control module (TCM) has detected a fault in shift solenoid C. This solenoid is usually found in transmissions with more gears, and a fault affects specific gears defined by the manufacturer and may put the transmission into limp mode.
Symptoms4
- One or more gears missing, or shifts in an unusual order.
- Transmission held in one gear in limp mode.
- Harsh or delayed shifts.
- Check engine light on.
Possible causes6
- Low or dirty transmission fluid.
- Corroded or oil-soaked transmission connector.
- Broken or chafed wire in the solenoid C circuit.
- Failed or sticking shift solenoid C.
- Damaged internal harness or valve body.
- Transmission computer fault (less common).
How to diagnose5
- Read all codes and check for a specific code such as P0761 or P0763.
- Check fluid level and condition.
- Check service information to learn the role of solenoid C in your transmission.
- Measure solenoid C resistance and compare it with the manufacturer specification, and inspect the connector and wiring.
- Watch commanded and actual gear on a scan tool to find the affected shift.
How to fix6
- Top up the fluid, or change it and the filter.
- Clean the connector and repair damaged wiring.
- Replace shift solenoid C or the solenoid pack if it is proven faulty.
- Repair the internal harness or valve body when needed.
- Reprogram or replace the computer after the above is ruled out.
- Clear the codes, then road test through all gears.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The cost is low when fluid, a connector or a wire is the cause, and rises if a complete solenoid pack or a valve body is needed.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Codes appeared for several shift solenoids at once. What does that mean?
Codes for solenoids A, B and C at the same time point to a shared cause such as the main connector, the solenoid power feed, the fluid or the computer, not all solenoids failing together.
Does every transmission have a solenoid C?
No. The number of shift solenoids depends on the transmission design and number of gears, so this code only appears on types that use this solenoid.
Was this explanation helpful?
Tap the stars to rate; you can change it later.
What was wrong? (optional)
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
Report a mistake
Spotted something inaccurate? Tell us and we will review and correct it.
Report received — thank you
This is your private tracking link. It shows the status and our reply as soon as it is posted.
The link is saved in this browser only.