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P0A06 OBD2: Motor Electronics Coolant Pump "A" Control Circuit Low

P0A06 OBD2: Motor Electronics Coolant Pump “A” Control Circuit Low

What Does the P0A06 Code Mean?

The P0A06 OBD-II code indicates a problem with the Motor Electronics Coolant Pump “A” Control Circuit. This code is specific to hybrid vehicles, where the coolant pump plays a crucial role in regulating the temperature of the hybrid system. If the pump operates below the required level or fails altogether, this code will be triggered.

What Causes the P0A06 Code?

The P0A06 code can be triggered by several issues, including:

  • High voltage coolant pump failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues in the control circuit

What Are the Symptoms of the P0A06 Code?

Common symptoms associated with the P0A06 code include:

  • Engine may overheat
  • Increased coolant temperature
  • Warning lights on the dashboard

How Serious Is the P0A06 Code?

The P0A06 code is considered urgent. Ignoring this code may lead to severe engine overheating, which can cause significant damage to the engine and other components. Immediate attention is recommended to prevent further issues.

How to Diagnose the P0A06 Code

To diagnose the P0A06 code, a mechanic will typically follow these steps:

  1. Retrieve the trouble code using an OBD-II scanner.
  2. Inspect the wiring and connectors related to the coolant pump.
  3. Test the coolant pump for proper operation.
  4. Check the PCM functionality and any related sensors.

Common Repairs for the P0A06 Code

Repairs for the P0A06 code may include:

  • Replacing the high voltage coolant pump if it is faulty
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P0A06 Code?

The cost to fix the P0A06 code can vary significantly based on the underlying issue. Typical repair costs can range from $100 to $1,000, depending on whether the coolant pump needs to be replaced or if there are wiring issues that need to be addressed.

Can I Fix the P0A06 Code Myself?

While it is possible to address some issues related to the P0A06 code yourself, such as inspecting wiring, it is recommended to seek professional help for diagnosis and repair. Proper tools and knowledge are required to ensure that repairs are made safely and effectively.

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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