P0A16Engine Mount A Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- The module sees a higher voltage on the control circuit of engine mount A than it should for the commanded state, usually a short to a supply line or a failed actuator input. The mount can then no longer be switched or driven as intended. Ford lists P0A16 in its 2020 to 2023 gasoline OBD summary under the active mount circuit check, matured after about 5 seconds once the driver reports the fault; mount B uses P0AB8. On Honda's active control engine mounts, such as the 2008 Pilot V6, P0A16 belongs to the front mount actuator and P0AB8 to the rear one. A Ford patent shows the mounts are toggled between soft and firm, so a fault means either harsh idle or more movement. See P0A14 and P0A15.
- What you may notice
- Harsh idle or more engine movement on take-off
- Warning light, depending on manufacturer
- Vibration during cylinder deactivation
- Likely causes
- LikelyControl wire shorted to a battery or ignition supply
- PossibleMount actuator or solenoid failed with an open low side
- RareDriver stage in the engine or mount control unit damaged
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.