AutoCodes – GMC – P06E4 GMC

P06E4 GMC Code - Control Module Wake-Up Circuit Performance

Quick Answer

The Accessory Wake Up Serial Data 2 circuit is activated by the Hybrid Powertrain Control Module 2 (HPCM2) to immediately power up other control modules connected to this circuit. Common causes include Faulty Hybrid Powertrain Control Module 2 (HPCM2), Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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: P06E4 GMC indicates Control Module Wake-Up Circuit Performance.
Common causes: Common causes include Faulty Hybrid Powertrain Control Module 2 (HPCM2), Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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 122

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 27, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06E4 GMC Description

The Accessory Wake Up Serial Data 2 circuit is activated by the Hybrid Powertrain Control Module 2 (HPCM2) to immediately power up other control modules connected to this circuit. This process occurs when the Body Control Module (BCM) signals the HPCM2, indicating that serial data transmission is required. In response, the HPCM2 energizes the circuit to ensure that all necessary modules are ready to communicate and perform their respective functions.
A Diagnostic Trouble Code (DTC) is triggered when the HPCM2 detects a fault or failure in the output wake-up circuit. This malfunction can prevent the control modules from receiving the necessary wake-up signal, potentially disrupting the vehicle's communication network and affecting the operation of various systems.

OBDII Code P06E4 GMC - Control Module Wake-Up Circuit Performance - AutoCodes.com — P06E4 GMC Code - Control Module Wake-Up Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P06E4 GMC?

Faulty Hybrid Powertrain Control Module 2 (HPCM2)
Hybrid Powertrain Control Module 2 harness is open or shorted
Hybrid Powertrain Control Module 2 circuit poor electrical connection

How to Fix the DTC P06E4 GMC?

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 P06E4 GMC 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.

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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 P06E4 GMC Code

1. What are the common symptoms of OBDII code P06E4 in a GMC vehicle?

- Common symptoms may include intermittent or constant illumination of the Check Engine Light, poor engine performance, and issues with starting the vehicle.

2. What does the OBDII code P06E4 GMC indicate?

- The code P06E4 indicates a problem with the Control Module Wake-Up Circuit Performance in the GMC vehicle.

3. What are the possible causes of the P06E4 code in a GMC vehicle?

- Possible causes of the P06E4 code include a faulty control module, wiring issues, poor connections, or a drained battery.

4. How can I diagnose the P06E4 code in my GMC vehicle?

- Diagnosing the P06E4 code involves using an OBDII scanner to retrieve the code, checking the control module connections, inspecting the wiring for any damage, and testing the battery voltage.

5. Can I continue driving my GMC vehicle with the P06E4 code present?

- It is not recommended to continue driving the vehicle with the P06E4 code present, as it can lead to further damage and potentially unsafe driving conditions.

6. How can I repair the Control Module Wake-Up Circuit Performance issue in my GMC vehicle?

- Repairing the P06E4 code may involve replacing the faulty control module, repairing any damaged wiring or connections, and ensuring the battery is in good condition.

7. Are there any DIY tips for troubleshooting the P06E4 code in a GMC vehicle?

- DIY tips for troubleshooting the P06E4 code include checking the control module fuses, inspecting the wiring harness for loose connections, and ensuring the battery terminals are clean and secure.

8. How much does it typically cost to repair the P06E4 code in a GMC vehicle?

- The cost of repairing the P06E4 code in a GMC vehicle can vary depending on the extent of the issue, but it may range from $100 to $500 for parts and labor.

9. Can a mechanic easily reset the P06E4 code after repairs are completed?

- Yes, a mechanic can easily reset the P06E4 code using an OBDII scanner after the necessary repairs have been completed to clear the code from the vehicle's system.

10. Is the P06E4 code a common issue in GMC vehicles?

- The P06E4 code is not extremely common, but it can occur in GMC vehicles due to various electrical issues related to the control module wake-up circuit.