P068A Technical Description
ECM/PCM Power Relay De-Energized Performance – Too Early
If you’re seeing the P068A trouble code, this guide will explain its meaning, symptoms, causes, and fixes. You’ll get your car back on the road in no time.
I’ve dealt with this code plenty of times before.
We’ll cover what P068A means, its common symptoms, possible causes, and practical fixes. You’ll find actionable advice to tackle this issue head-on.
Let’s get started and solve your P068A trouble code problem.
Key Takeaways
- The P068A code indicates the ECM/PCM power relay de-energizes too early.
- Common symptoms include engine stalling, starting issues, and the Check Engine Light.
- Causes can include a faulty relay, wiring issues, or a bad ECM/PCM.
- Start by checking the battery and charging system.
- Inspect and test the ECM/PCM power relay and its circuit.
- Clear the codes and monitor your vehicle after repairs.
Table of ContentsShow
What Does P068A Trouble Code Mean?
The P068A trouble code indicates an issue with the ECM/PCM power relay. Specifically, it means the relay de-energizes too early.
This relay is crucial because it supplies power to the Engine Control Module (ECM) or Powertrain Control Module (PCM). When it fails, the ECM/PCM can’t perform essential functions.
When you see this code, your vehicle’s computer has detected that the relay’s performance isn’t up to par.
This could lead to various problems, from poor engine performance to starting issues.
Essentially, the ECM/PCM isn’t receiving power when it should, causing potential disruptions in your car’s operations.
The power relay’s job is to manage the electrical power that goes to the ECM/PCM. It should stay energized for a specific duration, even after you turn off the ignition.
This allows the ECM/PCM to perform necessary shutdown procedures. If the relay de-energizes too early, these procedures are cut short, leading to the P068A code.
Understanding the P068A code is important because it directly affects your vehicle’s ability to function properly.
The ECM/PCM is the brain of your car, controlling everything from fuel injection to ignition timing. When it doesn’t get the power it needs, your car can’t run smoothly.
Ignoring this code can lead to more severe issues down the line. It can cause your car to stall unexpectedly or fail to start.
Addressing the P068A trouble code promptly ensures your car remains reliable and prevents further damage to the ECM/PCM.
In summary, the P068A trouble code points to a problem with the power relay for the ECM/PCM. Fixing this issue is crucial to maintain your vehicle’s performance and reliability.
P068A Trouble Code Symptoms
Here are the common symptoms you might notice with the P068A trouble code:
- Engine stalling
- Difficulty starting the engine
- Check Engine Light illuminated
- Reduced engine performance
- Intermittent electrical issues
- Engine runs rough or misfires
P068A Trouble Code Causes
Here are the common causes for the P068A trouble code:
- Faulty ECM/PCM power relay
- Wiring issues in the relay circuit
- Corroded or damaged relay connectors
- Faulty ECM/PCM
- Battery or charging system problems
How to Fix a P068A Trouble Code
To fix a P068A trouble code, follow these steps to diagnose and repair the issue:
1. Check the Battery and Charging System
Start by ensuring your battery and charging system are in good condition. A weak battery or faulty alternator can cause power issues that trigger this code. Test the battery voltage and check the alternator output.
2. Inspect the ECM/PCM Power Relay
Locate the ECM/PCM power relay in your vehicle. Refer to your vehicle’s manual if you’re unsure where it’s located. Check for any visible signs of damage or corrosion on the relay and its connectors. Replace the relay if it appears damaged or if the connections are corroded.
3. Test the Relay Circuit
Use a multimeter to test the relay circuit. Check for continuity and proper voltage supply to the relay. If there’s no power or the circuit is open, inspect the wiring and connectors for damage or loose connections. Repair any damaged wires or connectors.
4. Examine the ECM/PCM
If the relay and circuit are in good condition, the problem might lie within the ECM/PCM itself. This is less common but possible. Use a scan tool to check for any additional codes or issues related to the ECM/PCM. If you suspect the ECM/PCM is faulty, it might need to be reprogrammed or replaced by a professional.
5. Clear the Codes and Test
After addressing the issues, clear the trouble codes using an OBD-II scanner. Start your vehicle and monitor for any recurrence of the P068A code. If the code doesn’t return, the issue is resolved. If it does, further diagnosis may be necessary.
By systematically checking and addressing these components, you can effectively diagnose and fix the P068A trouble code, ensuring your vehicle runs smoothly again.
Conclusion
Now you know what the P068A trouble code means and how to fix it.
Got any other car problems bugging you?
Drop a comment below with your questions or share your experience fixing this code!
