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P0AB6 OBD2: Engine Mount "B" Control Circuit/Open

P0AB6 OBD2: Engine Mount “B” Control Circuit/Open

The P0AB6 code is an OBD-II diagnostic trouble code that indicates an issue with the engine mount “B” control circuit or that the circuit is open. This code is often associated with modern vehicles that utilize electronically controlled engine mounts to minimize vibrations felt by the driver and passengers.

What Does the P0AB6 Code Mean?

When the vehicle’s Powertrain Control Module (PCM) detects an incorrect signal from the engine mount “B,” it triggers the P0AB6 code. This typically means that there is a malfunction in the control circuit of the engine mount, which can lead to increased vibrations and potential damage to other components.

What Causes the P0AB6 Code?

Several factors can lead to the P0AB6 code, including:

  • Damaged engine mount
  • Powertrain Control Module (PCM) failure
  • Wiring issues related to the engine mount circuit

What Are the Symptoms of the P0AB6 Code?

Drivers may experience various symptoms when the P0AB6 code is present, such as:

  • Abnormal vibrations while driving
  • Transmission issues, such as banging into gear when shifting from park to reverse or drive

How Serious Is the P0AB6 Code?

The severity of the P0AB6 code is considered moderate. While it might not pose an immediate threat to the vehicle’s safety or functionality, it should be diagnosed and repaired within a reasonable time frame to prevent further issues and ensure optimal vehicle performance.

How to Diagnose the P0AB6 Code

Diagnosing the P0AB6 code typically involves the following steps:

  1. Using an OBD-II scanner to confirm the presence of the P0AB6 code.
  2. Inspecting the engine mounts for visible damage or wear.
  3. Checking the wiring and connectors associated with the engine mount circuit for any signs of damage or disconnection.
  4. Testing the Powertrain Control Module (PCM) to ensure it’s functioning correctly.

Common Repairs for the P0AB6 Code

Common repairs for the P0AB6 code may include:

  • Replacing damaged engine mounts
  • Repairing or replacing faulty wiring or connectors
  • Reprogramming or replacing the Powertrain Control Module (PCM) if necessary

How Much Does It Cost to Fix the P0AB6 Code?

The cost to fix the P0AB6 code can vary widely depending on the specific nature of the problem and the make and model of the vehicle. Generally, repairs can range from $100 to $1,000, with the average cost being around $300 to $500 for parts and labor.

Can I Fix the P0AB6 Code Myself?

While some vehicle owners with mechanical knowledge might be able to diagnose and replace engine mounts or repair wiring issues themselves, it’s recommended to consult with a certified mechanic for proper diagnosis and repairs. This is especially true for PCM-related issues that may require specialized equipment and expertise.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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