AutoCodes – Generic – P1E47

P1E47 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 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 868

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

What does this mean?

What are the Possible Causes of the DTC P1E47?

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?

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 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 code?

Need more information on how to fix the P1E47 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E47 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1E47 Buick — 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature
P1E47 Cadillac — 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature
P1E47 Chevrolet — 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature
P1E47 GMC — 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature
P1E47 Saturn — 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature

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 Code

What does the OBDII code P1E47 mean?

P1E47 indicates that the 14-volt power module's temperature sensor 1 has detected a high temperature, which may signal an issue with the module's cooling or the sensor itself.

What are the common symptoms of code P1E47?

Symptoms may include an illuminated check engine light, reduced charging system performance, overheating of the power module, or potential limp mode activation.

What causes the P1E47 code to appear?

Common causes include a faulty temperature sensor, wiring issues such as short circuits or loose connections, a malfunctioning 14-volt power module, or excessive heat due to cooling system failure.

Can I drive my vehicle with a P1E47 code?

Itâ€™s not recommended to drive for an extended period with this code, as overheating the power module can lead to more severe damage or failure of the charging system.

How do I diagnose the P1E47 code?

Start by inspecting the temperature sensor and its wiring for damage or loose connections. Use a scan tool to monitor sensor data and check for abnormalities. Test the cooling system and power module for proper operation.

How do I fix the P1E47 code?

Repairs may involve replacing the faulty temperature sensor, repairing damaged wiring, ensuring proper cooling system function, or, in some cases, replacing the 14-volt power module.

Can a bad 14-volt power module cause the P1E47 code?

Yes, a malfunctioning power module can overheat and trigger the high-temperature reading, leading to the P1E47 code.

How much does it cost to repair the P1E47 code?

The cost depends on the root cause, but sensor replacement typically ranges from $50 to $200, while a new 14-volt power module can cost $500 or more, plus labor.

What tools are needed to troubleshoot the P1E47 code?

Youâ€™ll need a professional OBDII scanner, a multimeter to check wiring and connections, and potentially thermal imaging tools to assess heat levels.

Can neglecting P1E47 lead to further damage?

Yes, ignoring this code can result in overheating and failure of the 14-volt power module, leading to charging system problems and potential vehicle shutdown.