AutoCodesGeneric – P15AB

P15AB Code - Engine Mounting Control Module Power Supply Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) monitors the Engine Mounting Control Module. Common causes include Faulty Engine Mounting Control Module, Engine Mounting Control Module harness is open or shorted, Engine Mounting Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P15AB indicates Engine Mounting Control Module Power Supply Circuit Low Voltage.
Common causes
Common causes include Faulty Engine Mounting Control Module, Engine Mounting Control Module harness is open or shorted, Engine Mounting Control Module circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 2,594
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 02, 2020
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Code P15AB Description

The Engine Control Module (ECM) monitors the Engine Mounting Control Module. The ECM sets the OBDII code when the Engine Mounting Control Module is not to factory specifications.
OBDII Code P15AB - Engine Mounting Control Module Power Supply Circuit Low Voltage - AutoCodes.com
P15AB Code - Engine Mounting Control Module Power Supply Circuit Low Voltage

What are the Possible Causes of the DTC P15AB?

  • Faulty Engine Mounting Control Module
  • Engine Mounting Control Module harness is open or shorted
  • Engine Mounting Control Module circuit poor electrical connection

How to Fix the DTC P15AB?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P15AB code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P15AB code?

Need more information on how to fix the P15AB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15AB code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P15AB Honda — Engine Mounting Control Module Power Supply Circuit Low Voltage
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P15AB Code

1. What does the OBDII code P15AB mean?

P15AB indicates that the Engine Mounting Control Module has detected a low voltage issue in its power supply circuit.

2. What are the common symptoms of code P15AB?

Symptoms may include increased engine vibrations, a rough ride, abnormal noises from the engine bay, or the illumination of the check engine light.

3. What causes the P15AB code to appear?

Common causes include a faulty engine mounting control module, damaged wiring or connectors, a weak battery, or a failing alternator.

4. Can a low battery trigger the P15AB code?

Yes, a low or failing battery can cause insufficient voltage to the engine mounting control module, triggering this code.

5. How do I diagnose the P15AB code?

Start by checking the battery and alternator voltage, then inspect the wiring and connectors related to the engine mounting control module for damage or corrosion.

6. Can I drive with the P15AB code active?

While the vehicle may still be drivable, ignoring the code can lead to increased engine wear or discomfort due to excessive vibrations.

7. How is the P15AB code usually fixed?

Repairs may involve replacing damaged wiring, cleaning corroded connectors, replacing the engine mounting control module, or addressing battery and alternator issues.

8. How much does it cost to fix the P15AB code?

Repair costs can range from $100 to $500 or more, depending on whether the issue is with wiring, the control module, or other electrical components.

9. Can a blown fuse cause the P15AB code?

Yes, a blown fuse in the circuit supplying power to the engine mounting control module can result in this code.

10. How do I prevent the P15AB code from recurring?

Regularly inspect and maintain your vehicle’s electrical system, including the battery, alternator, and wiring, to ensure proper voltage supply to all components.

Discuss the causes and fixes for P15AB OBDII Code

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