AutoCodes – GMC – P1E47 GMC

P1E47 GMC Code - 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature

Quick Answer

The 14 V power module, also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted. 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: P1E47 GMC indicates 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature.
Common causes: Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted.
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 927

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 P1E47 GMC Description

The 14 V power module, also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. The module also monitors the function of the temperature sensors. These sensors are internal to the 14 V power module and are not serviced separately from the control module.
The 14 V power module is an air cooled component. The 14 V power module vent fan is controlled by the hybrid powertrain control module 2.

OBDII Code P1E47 GMC - 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature - AutoCodes.com — P1E47 GMC Code - 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature

What does this mean?

What are the Possible Causes of the DTC P1E47 GMC?

Program 14 V Power Module
Faulty 14 V Power Module
14 V Power Module harness is open or shorted
14 V Power Module circuit poor electrical connection

How to Fix the DTC P1E47 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 P1E47 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 P1E47 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 P1E47 GMC Code

1. What does the OBDII code P1E47 mean on a GMC vehicle?

P1E47 indicates an issue with the 14 Volt Power Module Temperature Sensor 1, specifically a high temperature detected in the sensor circuit.

2. What are the common symptoms of the P1E47 code?

Symptoms may include a check engine light, reduced fuel efficiency, potential battery charging issues, or reduced vehicle performance.

3. What causes the P1E47 code to appear?

Common causes include a faulty temperature sensor, wiring issues such as damaged or corroded connections, or a malfunctioning 14 Volt Power Module.

4. Can I drive my GMC with the P1E47 code active?

Driving with this code is not recommended, as it could lead to further damage to the 14 Volt Power Module or electrical system components.

5. How do I diagnose the P1E47 code?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting wiring and connectors, and testing the temperature sensor for proper functionality.

6. What repairs are needed to fix the P1E47 code?

Repairs may include replacing the temperature sensor, repairing or replacing damaged wiring, or replacing the 14 Volt Power Module if it is defective.

7. How much does it cost to fix the P1E47 code?

Repair costs vary, but replacing the temperature sensor may cost $100-$300, while replacing the 14 Volt Power Module can be significantly more expensive.

8. Can a software update fix the P1E47 code?

In some cases, a software update for the vehicle's powertrain control module (PCM) may resolve the issue, but this depends on the specific circumstances.

9. What tools are needed to troubleshoot the P1E47 code?

Basic tools include an OBDII scanner, a multimeter for testing electrical circuits, and potentially a thermal imaging device to check for overheating components.

10. Is the P1E47 code related to the vehicle battery?

Yes, it can be indirectly related, as the 14 Volt Power Module controls certain battery functions. A fault in this system can impact battery charging and operation.