P0A15 code meaning
Engine Mount A Control Circuit Low
Powertrain system Generic code P0Axx codes Check engine light
What P0A15 means
The control circuit of switchable or active engine mount A shows a voltage or current below the expected level, which usually points to a short to ground on the line or inside the actuator. Ford uses P0A15 in its 2020 to 2023 gasoline OBD summary for the active mounts: the low-level driver reports the fault and the PCM matures it after about 5 seconds; the partner mount B has P0AB7. Honda's active control engine mount system on the 2008 Pilot V6 assigns P0A15 to the front mount actuator and P0AB7 to the rear. Ford engineers describe these mounts as switched between a damping and a stiffening mode, so a stuck mount is felt as vibration. The open circuit is P0A14, the high fault P0A16.
P0A15 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0A15
- Noticeable vibration at idle or low speed
- Warning light, depending on manufacturer
- Cylinder deactivation may be suppressed
Common causes of P0A15
- Most likelyControl wire chafed on the engine or subframe and shorted to ground
- PossibleShorted coil in the mount actuator or solenoid, often after fluid leakage
- Less likelyMoisture in the mount connector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Engine mount aWiring harnessECM
What each part of P0A15 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| 15 | The exact fault in that area. |
What to do next
- Note P0A15 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0A15
What does P0A15 mean?
P0A15 means "Engine Mount A Control Circuit Low". The control circuit of switchable or active engine mount A shows a voltage or current below the expected level, which usually points to a short to ground on the line or inside the actuator. It is a generic code, so it means the same on every make.
Is it safe to drive with P0A15?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0A15 fail an emissions test?
P0A15 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0A15 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0A15 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.