OBD Guide

P0A16

Engine Mount A Control Circuit High

P0A16 is an OBD-II diagnostic trouble code meaning: Engine Mount A Control Circuit High. Common causes: open or short circuit in the support control circuit, active mount solenoid valve malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased vibrations in the cabin at idle
  • Vibration of the steering wheel or pedals
  • Check Engine indicator on the dashboard
  • Clicking or knocking noises from the engine mount area
  • Deterioration in smoothness

Causes

  • Open or short circuit in the support control circuit
  • Active mount solenoid valve malfunction
  • Problems with the engine control unit
  • Mechanical damage to the active support
  • Corrosion of electrical contacts

How to Fix

  1. Check the integrity of the wiring harness to the engine mount
  2. Measure the resistance of the support solenoid valve
  3. Check the voltage at the support connector
  4. Scan the control unit for other errors
  5. If necessary, replace the active engine mount

Related codes

Error P0A16 by Vehicle Brand

FAQ

What does the P0A16 code mean?

P0A16 is an OBD-II diagnostic trouble code that indicates: Engine Mount A Control Circuit High

What causes a P0A16 error code?

The most common causes of P0A16 include: Open or short circuit in the support control circuit; Active mount solenoid valve malfunction; Problems with the engine control unit; Mechanical damage to the active support.

How do I fix a P0A16 diagnostic trouble code?

To fix P0A16: Check the integrity of the wiring harness to the engine mount. Measure the resistance of the support solenoid valve. Check the voltage at the support connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0A16?

Yes, but get it checked soon

How much does it cost to fix P0A16?

The estimated repair cost for P0A16 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat