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P1381 Chevrolet Code - Misfire Detected - No Communication with Brake Control Module

Quick Answer

The P1381 code for Chevrolet indicates that a misfire has been detected in the engine, but there is no communication with the brake control module. Common causes include Faulty ignition components (spark plugs, ignition coils, wires), Malfunctioning brake control module, Wiring issues or poor connections. 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
P1381 Chevrolet indicates Misfire Detected - No Communication with Brake Control Module.
Common causes
Common causes include Faulty ignition components (spark plugs, ignition coils, wires), Malfunctioning brake control module, Wiring issues or poor connections.
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 07, 2024
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Code P1381 Chevrolet Description

The P1381 code for Chevrolet indicates that a misfire has been detected in the engine, but there is no communication with the brake control module. This can lead to a variety of issues affecting the vehicle's performance and safety systems. When a misfire occurs, it means that one or more cylinders in the engine are not firing properly, which can result in reduced power, rough idling, decreased fuel efficiency, and potential damage to the catalytic converter over time.

OBDII Code P1381 Chevrolet - Misfire Detected - No Communication with Brake Control Module
P1381 Chevrolet Code - Misfire Detected - No Communication with Brake Control Module

Common Causes of P1381 Chevrolet

  1. Faulty ignition components (spark plugs, ignition coils, wires)
  2. Malfunctioning brake control module
  3. Wiring issues or poor connections
  4. ECM (engine control module) problems
  5. Corroded or damaged connectors

Symptoms of P1381 Chevrolet

  1. Engine misfires or runs rough
  2. Decreased acceleration and power
  3. Check engine light illuminated
  4. ABS or traction control warning lights on the dashboard
  5. Braking issues, such as reduced effectiveness or unusual noises

How to Fix P1381 Chevrolet

  1. Perform a thorough diagnostic scan to identify the specific cause of the misfire and communication issue.
  2. Inspect and test the ignition system components, such as spark plugs, ignition coils, and wiring, to determine if they are functioning properly.
  3. Check the brake control module and associated wiring for any signs of damage or malfunction.
  4. Repair or replace any faulty components identified during the diagnostic process.
  5. Clear the diagnostic trouble codes, reset the ECM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1381 Chevrolet

The cost of repairing a P1381 Chevrolet code can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary significantly, so it's advisable to check with local shops for a more accurate estimate. Additionally, the cost may be higher if the brake control module or ECM needs to be replaced.

What does this mean?

Tech Notes for P1381 Chevrolet

If the P1381 code is set with other codes, repair other codes first and then clear the code.

When is the Code Detected?

If a loss of communication occurs which causes the Powertrain Control Module (PCM) not to receive rough road information while DTC P0300 is requesting the Malfunction Indicator Lamp (MIL), DTC P1381 will set.

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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 P1381 Chevrolet Code

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  • Amigos estoy muy agradecido con toda esta información es oro molido pero será posible que lo pusieran en español ya que yo no se leer en ingles se los pido encarecidamente y como un gran favor DTB.

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