OBD-II code · Powertrain (generic)

P0AB7 Engine Mount B Control Circuit Low

The active engine mount B control circuit reports a control circuit low condition. Vibration damping cannot be modulated.

Is it safe to drive with P0AB7?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyControl wire shorted to ground
  • PossibleActuator internal short
  • Less likelyConnector pins corroded - high contact resistance

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
1–5 h
Emissions test
Usually unaffected
Parts involved
Engine Mount B, Wiring Harness, Ecm

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.