What Does P0A14 Mean?
DTC P0A14 indicates the powertrain control module (PCM) or hybrid control module has detected an open circuit or general malfunction in the active engine mount "A" control circuit. Active engine mounts use electronically controlled fluid or vacuum actuators to dampen engine vibrations that change with operating conditions. Loss of control means the mount operates passively, allowing increased vibration to reach the cabin.
Common Causes
30%
Open circuit in the wiring between the control module and active engine mount "A" solenoid/actuator
30%
Failed active engine mount actuator or solenoid coil
20%
Disconnected or corroded connector at the engine mount
10%
Blown fuse in the engine mount control circuit
10%
PCM/hybrid control module driver circuit failure
Diagnostic Steps
1
Check the fuse for the active engine mount control circuit; a blown fuse is the quickest and easiest cause to rule out.
2
Locate the active engine mount "A" and inspect its electrical connector for damage, disconnection, corrosion, or oil contamination.
3
Measure the resistance of the mount actuator/solenoid; compare to manufacturer specification. An open reading confirms a failed actuator.
4
Check continuity of the control wire from the PCM connector to the engine mount connector to identify any breaks in the harness.
5
With the engine running, command the active mount on and off via the scan tool while monitoring current draw; lack of current draw with voltage present confirms an open actuator.
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
DTC P0A14 indicates the powertrain control module (PCM) or hybrid control module has detected an open circuit or general malfunction in the active engine mount "A" control circuit. Active engine mounts use electronically controlled fluid or vacuum actuators to dampen engine vibrations that change wi...
The most common cause of P0A14 (Engine Mount "A" Control Circuit/Open) is: Open circuit in the wiring between the control module and active engine mount "A" solenoid/actuator
Typical repair costs for P0A14 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Loss of active vibration damping is primarily a comfort issue, causing increased cabin vibration especially at idle. However, if the engine mount itself is physically deteriorated, excessive engine movement could stress exhaust connections or coolant hoses.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0A14 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Mechanical
Difficulty
Type
Generic (SAE)
Recommended Tools
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