AutoCodes – GMC – P1E34 GMC

P1E34 GMC Code - Auxiliary Transmission Fluid Pump Inverter Temperature Sensor Circuit High Voltage

Quick Answer

This is an internal fault detection of the power inverter module, often referred to as the drive motor generator power inverter 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: P1E34 GMC indicates Auxiliary Transmission Fluid Pump Inverter Temperature Sensor Circuit High Voltage.
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 920

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E34 GMC Description

This is an internal fault detection of the power inverter module, often referred to as the drive motor generator power inverter module. This fault is handled inside the power inverter module and no external circuits are involved.

OBDII Code P1E34 GMC - Auxiliary Transmission Fluid Pump Inverter Temperature Sensor Circuit High Voltage - AutoCodes.com — P1E34 GMC Code - Auxiliary Transmission Fluid Pump Inverter Temperature Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1E34 GMC?

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

How to Fix the DTC P1E34 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 P1E34 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.

Need more information about the P1E34 GMC code?

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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 P1E34 GMC Code

What does the OBDII code P1E34 mean for my GMC vehicle?

The OBDII code P1E34 indicates a high voltage issue in the auxiliary transmission fluid pump inverter temperature sensor circuit.

What are the common symptoms of the P1E34 code?

Common symptoms include warning lights on the dashboard, erratic transmission behavior, overheating of the transmission, and reduced fuel efficiency.

What could cause the P1E34 code to trigger?

Potential causes include a faulty temperature sensor, damaged wiring or connectors, issues with the auxiliary transmission fluid pump, or a malfunctioning inverter.

Can I drive my GMC with the P1E34 code?

While it may be possible to drive your vehicle, it is not recommended as it can lead to transmission overheating and further damage.

How can I diagnose the P1E34 code?

To diagnose the P1E34 code, start with a visual inspection of the wiring and connectors, use a multimeter to test the sensor and circuit, and check for any related codes.

What repairs are commonly needed for the P1E34 code?

Repairs may include replacing the temperature sensor, repairing or replacing damaged wiring, or addressing issues within the auxiliary transmission fluid pump.

How can I prevent the P1E34 code from reoccurring?

To prevent the code from reoccurring, regularly maintain your transmission system, check for fluid leaks, and ensure all electrical connections are clean and secure.

Is it safe to clear the P1E34 code without repairs?

Clearing the code without addressing the underlying issue is not safe, as the problem may lead to transmission failure or other complications.

What should I do if the P1E34 code keeps coming back after repairs?

If the code persists, consider rechecking all repairs, inspecting for additional issues, or seeking help from a professional mechanic for further diagnosis.