AutoCodes – GMC – P1E19 2014 GMC Sierra

P1E19 2014 GMC Sierra Code - Auxiliary Transmission Fluid Pump Control Module System Voltage Low

Quick Answer

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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: P1E19 2014 GMC Sierra indicates Auxiliary Transmission Fluid Pump Control Module System Voltage Low.
Common causes: Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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 148

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 04, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E19 2014 GMC Sierra Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the power inverter module ignition voltage circuit, battery voltage circuits and chassis earth.

OBDII Code P1E19 2014 GMC Sierra - Auxiliary Transmission Fluid Pump Control Module System Voltage Low - AutoCodes.com — P1E19 2014 GMC Sierra Code - Auxiliary Transmission Fluid Pump Control Module System Voltage Low

What does this mean?

What are the Possible Causes of the DTC P1E19 2014 GMC Sierra?

Faulty Power Inverter Module
Power Inverter Module harness is open or shorted
Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1E19 2014 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 P1E19 2014 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 P1E19 2014 GMC Sierra code?

Need more information on how to fix the P1E19 2014 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 P1E19 2014 GMC Sierra Code

What does the OBDII code P1E19 mean for a 2014 GMC Sierra?

Code P1E19 indicates a problem with the Auxiliary Transmission Fluid Pump Control Module System, specifically low system voltage.

What are the common symptoms of code P1E19 in a 2014 GMC Sierra?

Symptoms may include transmission overheating, reduced fuel efficiency, poor shifting performance, or the illumination of the check engine light.

What causes the P1E19 code to appear in a GMC Sierra?

Common causes include a weak or failing auxiliary transmission fluid pump, wiring issues, a faulty control module, or low battery voltage.

Can driving with a P1E19 code damage my GMC Sierra?

Yes, ignoring this code can lead to transmission damage due to inadequate fluid circulation, especially during heavy use or towing.

How can I diagnose the P1E19 code on my 2014 GMC Sierra?

Start by checking the battery voltage, inspecting wiring and connectors related to the auxiliary transmission fluid pump, and scanning for additional codes.

How do I fix the P1E19 code in a 2014 GMC Sierra?

Repair steps may include replacing the auxiliary transmission fluid pump, repairing damaged wiring, or replacing the control module if faulty.

Can a bad battery cause the P1E19 code in my GMC Sierra?

Yes, a failing or weak battery can result in low system voltage, triggering this code.

Is the auxiliary transmission fluid pump critical for my GMC Sierra?

Yes, it ensures proper fluid circulation in the transmission, especially during idle or low-speed operation.

How much does it cost to repair the P1E19 code on a 2014 GMC Sierra?

Repair costs can vary widely, but replacing the auxiliary transmission fluid pump may cost between $300 and $700, excluding labor.

Can I clear the P1E19 code without fixing the issue?

Clearing the code without addressing the underlying problem may temporarily remove the warning but won't resolve the issue, and the code will likely return.