P0AB8Engine Mount B Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- With P0AB8 the controller finds the control circuit of active engine mount B at too high a level, for example because the line has a short to battery voltage or the driver cannot pull it down. Ford names the code in its 2020-23 gasoline OBD summary as the bank 2 high fault of the active-mount circuit check, which runs continuously and needs about 5 seconds of driver-reported fault before a code is stored. Honda's 2008 Pilot uses the B codes for the rear mount actuator. The open circuit is P0AB6, the low side P0AB7, and the mirror code for mount A is P0A16. Consequences are comfort-related: the mount stays in its default state and vibration rises at idle.
- What you may notice
- Check engine light on
- Rougher feel at idle and when pulling away
- Likely causes
- LikelyControl wire shorted to a battery-voltage circuit
- PossibleMount actuator defective
- 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.