AutoCodes – GMC – P06EC 2018 GMC Sierra

P06EC 2018 GMC Sierra Code - Fuel Injector Control Module Requested MIL Illumination

Quick Answer

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. Common causes include Check Fuel Injector Control Module for codes, Faulty Fuel Injector Control Module. 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: P06EC 2018 GMC Sierra indicates Fuel Injector Control Module Requested MIL Illumination.
Common causes: Common causes include Check Fuel Injector Control Module for codes, Faulty Fuel Injector Control Module.
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 157

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 Jul 15, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06EC 2018 GMC Sierra Description

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. If a condition is detected, the module sets a Diagnostic Trouble Code (DTC) and sends a serial data message to the Engine Control Module (ECM). The ECM sets a DTC to inform that the module has set a DTC. The serial data message sent by the module also contains a request for the ECM to illuminate the Malfunction Indicator Lamp (MIL).
The DTC will be set when the ECM receives a serial data message from the Fuel Injector Control Module indicating that DTC has been set in the module.

OBDII Code P06EC 2018 GMC Sierra - Fuel Injector Control Module Requested MIL Illumination - AutoCodes.com — P06EC 2018 GMC Sierra Code - Fuel Injector Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P06EC 2018 GMC Sierra?

Check Fuel Injector Control Module for codes
Faulty Fuel Injector Control Module

How to Fix the DTC P06EC 2018 GMC Sierra?

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 P06EC 2018 GMC Sierra 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.

Need more information about the P06EC 2018 GMC Sierra code?

Need more information on how to fix the P06EC 2018 GMC Sierra code? Get Access to Factory Service Manuals

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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 P06EC 2018 GMC Sierra Code

1. What does the OBDII code P06EC mean for a 2018 GMC Sierra?

P06EC indicates that the Fuel Injector Control Module (FICM) has requested the Malfunction Indicator Light (MIL) to illuminate due to an internal issue or a problem with the fuel injector system.

2. What are the common symptoms of code P06EC in a 2018 GMC Sierra?

Symptoms may include the check engine light turning on, reduced engine performance, rough idling, poor fuel economy, and difficulty starting the engine.

3. What causes the P06EC code to appear?

Common causes include a faulty Fuel Injector Control Module, wiring or connector issues in the fuel injector circuit, a failed fuel injector, or an issue with the vehicle's powertrain control module (PCM).

4. Can I drive my 2018 GMC Sierra with the P06EC code active?

Itâ€™s not recommended to drive with this code active, as it may lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to the fuel system or engine.

5. How is the P06EC code diagnosed?

A technician will use a scan tool to verify the code, inspect the wiring and connectors for damage, test the Fuel Injector Control Module, and check the fuel injectors for proper operation.

6. What repairs can fix the P06EC code in a 2018 GMC Sierra?

Repairs may include replacing the faulty Fuel Injector Control Module, repairing or replacing damaged wiring or connectors, or replacing malfunctioning fuel injectors.

7. Is the P06EC code a common issue in the 2018 GMC Sierra?

It is not a very common issue but can occur if there are problems with the fuel injector system or the control module.

8. How much does it cost to repair the P06EC code?

Repair costs can vary but typically range from $250 to $1,000 depending on whether you need to replace the Fuel Injector Control Module, repair wiring, or replace fuel injectors.

9. Can a bad fuel injector cause the P06EC code?

Yes, a malfunctioning fuel injector can cause the Fuel Injector Control Module to request MIL illumination, triggering the P06EC code.

10. How can I prevent the P06EC code from occurring again?

Regular maintenance, including inspecting and cleaning fuel injectors, checking wiring and connections, and ensuring the Fuel Injector Control Module is functioning properly, can help prevent this code.