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Engine-Codes – Generic – P1396

P1396 Code - Glow Plug Monitor Fault Bank 2

Quick Answer

The diagnostic trouble code P1396 indicates a Glow Plug Monitor Fault in Bank 2 of the vehicle's engine. Common causes include Faulty glow plug(s) in Bank 2, Issues with the glow plug control module, Wiring or connector issues in the glow plug monitoring system. 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
P1396 indicates Glow Plug Monitor Fault Bank 2.
Common causes
Common causes include Faulty glow plug(s) in Bank 2, Issues with the glow plug control module, Wiring or connector issues in the glow plug monitoring system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P1396 Description

The diagnostic trouble code P1396 indicates a Glow Plug Monitor Fault in Bank 2 of the vehicle's engine. Glow plugs are essential components in diesel engines, as they help ignite the fuel-air mixture during cold starting conditions by heating the combustion chamber. In this case, the code specifically points to an issue with the glow plug monitoring system in the second bank of cylinders.

OBDII Code P1396 - Glow Plug Monitor Fault Bank 2
P1396 Code - Glow Plug Monitor Fault Bank 2

Common Causes of P1396

  1. Faulty glow plug(s) in Bank 2.
  2. Issues with the glow plug control module.
  3. Wiring or connector issues in the glow plug monitoring system.
  4. Faulty engine control module (ECM).
  5. Poor electrical connection or corrosion in the system.

Symptoms of P1396

  1. Difficulty starting the engine, especially in cold weather.
  2. Rough idling or misfiring.
  3. Decreased fuel efficiency.
  4. Increased emissions.
  5. Engine hesitation or lack of power.

How to Fix P1396

  1. Diagnose the specific glow plug(s) in Bank 2 that are faulty by testing each one individually.
  2. Inspect the glow plug control module and wiring for any damage or loose connections.
  3. Replace the faulty glow plug(s) in Bank 2 with new ones.
  4. Test the system to ensure proper functionality.
  5. Clear the diagnostic trouble codes and reset the engine control module.

Cost to Fix P1396

The typical repair costs for addressing a Glow Plug Monitor Fault in Bank 2 can range from $200 to $500, including parts and labor. However, it's important to note that these costs can vary depending on the make and model of the vehicle, as well as the specific diagnosis time and labor rates at auto repair shops. It is advisable to consult with a professional mechanic for a more accurate estimate based on the specific circumstances.

What does this mean?

Tech Notes for P1396

California trucks it has a GPCM (Glow Plug Control Module) instead of a GPR (Glow Plug Relay).

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Code P1396 Information for Specific Makes

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.

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