P2866
Shift Fork E Position Circuit High
P2866 is an OBD-II diagnostic trouble code meaning: Shift Fork E Position Circuit High. Common causes: open or short circuit in plug control circuit e, malfunction of the fork control solenoid valve. Estimated repair cost: $17–94.
Symptoms
- Incorrect gear shifting
- Transmission transition to emergency mode
- Check Engine light comes on
- A certain gear does not turn on
- Jerks when shifting gears
Causes
- Open or short circuit in plug control circuit E
- Malfunction of the fork control solenoid valve
- Mechanical sticking of the shift fork
- Transmission control module (TCM) problems
- Corrosion or poor contact in connectors
How to Fix
- Check the condition of the plug control circuit wiring harness E
- Check resistance and operation of fork solenoid valve E
- Inspect the mechanical condition of the fork and related gears
- Check the power and ground of the control circuit
- If necessary, replace faulty components
Related codes
Error P2866 by Vehicle Brand
FAQ
What does the P2866 code mean?
P2866 is an OBD-II diagnostic trouble code that indicates: Shift Fork E Position Circuit High
What causes a P2866 error code?
The most common causes of P2866 include: Open or short circuit in plug control circuit E; Malfunction of the fork control solenoid valve; Mechanical sticking of the shift fork; Transmission control module (TCM) problems.
How do I fix a P2866 diagnostic trouble code?
To fix P2866: Check the condition of the plug control circuit wiring harness E. Check resistance and operation of fork solenoid valve E. Inspect the mechanical condition of the fork and related gears. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2866?
Do not drive — repair immediately
How much does it cost to fix P2866?
The estimated repair cost for P2866 is $17–94. Actual cost depends on your vehicle, location, and labor rates.
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