P0AB6Engine Mount B Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- Some engines sit on switchable or actively driven hydraulic mounts whose solenoid or actuator is energised by the engine controller. P0AB6 reports that the driver output for the second mount (B) sees an open or otherwise faulty circuit. Ford lists the code in its 2020-23 gasoline OBD summary under active mounts, assigns mount B to bank 2, monitors continuously and lets the low-level driver fault mature for about 5 seconds before storing it. On the 2008 Honda Pilot the same code covers the rear mount actuator. Mount A has the matching codes P0A14 to P0A16. Drivers mostly notice more vibration at idle or in cylinder-deactivation mode; the engine itself keeps running normally.
- What you may notice
- Check engine light on
- Noticeable vibration at idle or with cylinder deactivation active
- Cylinder deactivation may be suspended on some models
- Likely causes
- LikelyBroken or chafed control wire to the mount actuator
- PossibleCorroded or loose connector at the mount (splash zone)
- PossibleMount solenoid or actuator coil open internally
- RareOutput driver in the engine controller defective
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.