OBD Guide

P0AB8

Engine Mount B Control Circuit High

P0AB8 is an OBD-II diagnostic trouble code meaning: Engine Mount B Control Circuit High. Common causes: open or short circuit in control circuit, support solenoid valve malfunction. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Increased engine vibrations
  • Unusual noises from the engine compartment
  • Reduced riding comfort
  • Check Engine light comes on
  • Possible jerking when changing gears

Causes

  • Open or short circuit in control circuit
  • Support solenoid valve malfunction
  • Wiring Harness Problems
  • Malfunction of the support control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of wiring and connectors
  2. Measure the resistance of the solenoid valve
  3. Check control circuit voltage
  4. Replace faulty engine mount if necessary
  5. Reset the error code and check for recurrence

Related codes

Error P0AB8 by Vehicle Brand

FAQ

What does the P0AB8 code mean?

P0AB8 is an OBD-II diagnostic trouble code that indicates: Engine Mount B Control Circuit High

What causes a P0AB8 error code?

The most common causes of P0AB8 include: Open or short circuit in control circuit; Support solenoid valve malfunction; Wiring Harness Problems; Malfunction of the support control unit.

How do I fix a P0AB8 diagnostic trouble code?

To fix P0AB8: Check the integrity of wiring and connectors. Measure the resistance of the solenoid valve. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0AB8?

Yes, but get it checked soon

How much does it cost to fix P0AB8?

The estimated repair cost for P0AB8 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat