OBD-II code · Powertrain (generic, extended)
P26C5 Exhaust Flow Control Valve A Control Circuit / Open
The controller cannot drive the exhaust flow control valve A (used for exhaust acoustics, EGR boost, or aftertreatment heating).
Is it safe to drive with P26C5?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen coil in valve solenoid
- PossibleBroken control wire
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Exhaust Flow Valve A, Solenoid, Wiring Harness
Related codes
- P26C2Engine Coolant Bypass Valve D Stuck Closed
- P26C3Internal Control Module Transmission Range Sensor Performance
- P26C4Internal Control Module Clutch Pedal Performance
- P26C6Exhaust Flow Control Valve A Control Circuit Low
- P26C7Exhaust Flow Control Valve A Control Circuit High
- P26C8Chassis Control Module 1 Requested MIL Illumination
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.