For the second sound actuator, P26EE signals a drive circuit carrying more voltage than expected, i.e. a short to battery positive or a feed coming back from a damaged actuator. Because the line is then powered from elsewhere, flap B may hold its position no matter what the driver selects. P26EE is not published by any maker; for orientation there are only the A codes in Ford's 2014 list and the exhaust valve driver checks in Ford's later summaries, which report output faults through a smart driver. When diagnosing, compare the B line with the unswitched supply wires running beside it and test the actuator off the car. Engine behaviour and emissions in normal driving are generally unchanged.
Medium severity. Can I keep driving?If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
Symptoms
- Check engine light
- Second flap stuck in one position
Most likely causes
- Actuator B wire in contact with a positive supply wire
- Damaged actuator B feeding voltage back
- Faulty output stage for circuit B in the module
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
- It affects emissions.
What each character of P26EE means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- 6: Control modules and outputs
- EE: Specific fault in that system
Frequently asked questions
Can I keep driving with code P26EE?
If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.
What causes code P26EE?
The most common causes are: actuator B wire in contact with a positive supply wire; damaged actuator B feeding voltage back; faulty output stage for circuit B in the module.
Related codes
- P26ECEngine Sound Control B Circuit/Open
- P26EDEngine Sound Control B Circuit Low
- P26EFEngine Sound Control B Circuit Performance
- P26DDEngine Sound Control A Circuit High
- P2BFAExhaust Flow Control Valve B Control Circuit High
Sources
- law.cornell.edu: 13 CCR 1968.2
- fordservicecontent.com: OBD Operations Summary Gasoline 2020 2023
- performanceparts.ford.com: 2014 BOSS 302S OBDII Codes
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.