Engine-Codes.com
Engine-Codes – Generic – P068B

P068B Code - ECM/PCM Power Relay De-Energized Performance - Too Late

Quick Answer

The P068B code indicates a problem with the ECM/PCM power relay being de-energized too late. Common causes include Faulty power relay, Wiring issues, Malfunctioning ECM/PCM. 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
P068B indicates ECM/PCM Power Relay De-Energized Performance - Too Late.
Common causes
Common causes include Faulty power relay, Wiring issues, Malfunctioning ECM/PCM.
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 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P068B Description

The P068B code indicates a problem with the ECM/PCM power relay being de-energized too late. The Engine Control Module (ECM) or Powertrain Control Module (PCM) is responsible for controlling various engine functions, such as fuel injection, ignition timing, and emissions systems. The power relay is a crucial component that supplies power to the ECM/PCM. When the relay is de-energized too late, it can lead to issues with the vehicle's performance and overall operation.

OBDII Code P068B - ECM/PCM Power Relay De-Energized Performance - Too Late
P068B Code - ECM/PCM Power Relay De-Energized Performance - Too Late

Common Causes of P068B

  1. Faulty power relay
  2. Wiring issues
  3. Malfunctioning ECM/PCM
  4. Poor connection between components
  5. Electrical system issues

Symptoms of P068B

  1. Engine misfires
  2. Poor fuel efficiency
  3. Engine stalling
  4. Difficulty starting the engine
  5. Illuminated check engine light

How to Fix P068B

  1. Diagnose the root cause of the issue by using a scan tool to retrieve the trouble codes and perform a thorough inspection of the power relay and related components.
  2. Replace the faulty power relay if it is determined to be the cause of the problem.
  3. Check and repair any damaged wiring or connections between the power relay and the ECM/PCM.
  4. Test the ECM/PCM to ensure it is functioning correctly and reprogram it if necessary.
  5. Clear the trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P068B

The typical repair costs for addressing a P068B code can range from $100 to $300, depending on the specific cause of the issue and the labor rates at the auto repair shop. It is important to note that diagnosis time and labor rates can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate.

Need more information about the P068B code?

Need more information on how to fix the P068B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P068B code diagnosed by a professional: Find a repair shop in your area

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 P068B Code

No Frequently Asked Questions about P068B Code found.

Discuss the causes and fixes for P068B OBDII Code

Submit a New Comment

Code P068B comments

No comments found for this page.