OBD Guide

P0AB6

Engine Mount B Control Circuit/Open

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

Symptoms

  • Increased engine vibrations
  • Rattling sounds from the engine compartment
  • Check Engine indicator on the dashboard
  • Deterioration in smoothness
  • Vibrations are especially noticeable at idle

Causes

  • Open or short circuit in the support control circuit
  • Active motor mount fault B
  • Connector problems or contact corrosion
  • Engine Mount Control Module Malfunction
  • Damage to the wiring harness in the engine compartment

How to Fix

  1. Check the integrity of the wiring to engine mount B
  2. Inspect connectors for corrosion or damage
  3. Check engine mount resistance (compare with specifications)
  4. If necessary, replace faulty active engine mount
  5. Reset the error code and check if it returns

Related codes

Error P0AB6 by Vehicle Brand