Powertrain, generic · Hybrid propulsion

P0A14 Engine Mount A Control Circuit/Open

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Some vehicles use switchable or active engine mounts that the powertrain or a mount control unit changes between soft and firm, or drives with an actuator against vibration. P0A14 reports an open or undefined fault in the control circuit of mount A. Ford lists it in its 2020 to 2023 gasoline OBD summary as the active mount circuit check: the low-side driver reports the fault and it matures after about 5 seconds; mount B uses P0AB6 to P0AB8. Honda's active control engine mounts, for example on the 2008 Pilot V6, use P0A14 for the front mount actuator and P0AB6 for the rear. P0A15 and P0A16 cover low and high faults. The car stays drivable, but vibration may increase.

Likely causes

Mount actuator connector loose, corroded or unplugged after engine work
Open coil in the mount actuator or switching solenoid
Wire broken where the harness flexes with engine movement
Fault in the engine or mount control unit output

Symptoms

  • More vibration at idle or during cylinder deactivation
  • Warning light, depending on manufacturer
  • Shudder that feels like a torque converter problem

Repair estimate

DifficultyMediumDIY possible
Parts and labour€50–700
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

engine mount awiring harnessecm

Related codes

P0A15P0A16P0AB6P0AB7P0AB8

References: fordservicecontent.com, fenderbender.com, patents.google.com.