AutoCodes – GMC – P1E48 GMC

P1E48 GMC Code - 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit

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: P1E48 GMC indicates 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit .
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 869

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 P1E48 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 P1E48 GMC - 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit - AutoCodes.com — P1E48 GMC Code - 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit

What does this mean?

What are the Possible Causes of the DTC P1E48 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 P1E48 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 P1E48 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 P1E48 GMC code?

Need more information on how to fix the P1E48 GMC code? Get Access to Factory Service Manuals

Need Help with the 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 P1E48 GMC Code

1. What are the common symptoms of OBDII code P1E48 in a GMC vehicle?

- Common symptoms include illuminated check engine light, poor engine performance, and potential issues with the vehicle's electrical system.

2. What could cause the 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit error code in a GMC?

- Possible causes may include a faulty temperature sensor, damaged wiring or connectors, or issues with the power module itself.

3. How can I diagnose the source of the P1E48 code in my GMC?

- To pinpoint the issue, it's recommended to use an OBDII scanner to retrieve the specific trouble code and then inspect the temperature sensor, wiring, and connections for any visible damage.

4. Is it safe to continue driving with the P1E48 error code present in my GMC?

- It's not advisable to drive with the code active as it can lead to further damage to the vehicle's components and potentially cause safety hazards.

5. Can I reset the P1E48 code in my GMC without addressing the underlying issue?

- While you can clear the code using an OBDII scanner, it's crucial to address the root cause to prevent the code from reappearing.

6. Are there any DIY repair tips for fixing the 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit problem?

- DIY repairs may involve checking and replacing the temperature sensor, inspecting the wiring for damage, and ensuring proper connections are secure.

7. How much does it typically cost to repair the P1E48 code in a GMC at a professional auto repair shop?

- Repair costs can vary depending on the extent of the issue and the shop's rates, but expect to pay for diagnostic time, parts replacement, and labor.

8. Can a faulty temperature sensor trigger other error codes in addition to P1E48 in a GMC?

- Yes, a malfunctioning temperature sensor can potentially trigger other related error codes or cause issues with the vehicle's overall performance.

9. Will fixing the 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit error improve my GMC's fuel efficiency?

- Addressing the underlying issue causing the error code may help optimize the vehicle's performance, potentially leading to improved fuel efficiency.

10. Is the P1E48 code a common issue in GMC vehicles, or is it specific to certain models?

- The P1E48 code related to the 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit may be more prevalent in certain GMC models equipped with this specific sensor and circuitry.