AutoCodes – GMC – P1A71 GMC

P1A71 GMC Code - 14 Volt Power Module Temperature Sensor 2 Performance

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 Faulty 14 Volt Power Module Temperature Sensor 2, 14 Volt Power Module Temperature Sensor 2 harness is open or shorted, 14 Volt Power Module Temperature Sensor 2 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: P1A71 GMC indicates 14 Volt Power Module Temperature Sensor 2 Performance.
Common causes: Common causes include Faulty 14 Volt Power Module Temperature Sensor 2, 14 Volt Power Module Temperature Sensor 2 harness is open or shorted, 14 Volt Power Module Temperature Sensor 2 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 1,015

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 Feb 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A71 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 accessory DC power control module and are not serviced separately from the control module.

OBDII Code P1A71 GMC - 14 Volt Power Module Temperature Sensor 2 Performance - AutoCodes.com — P1A71 GMC Code - 14 Volt Power Module Temperature Sensor 2 Performance

What does this mean?

What are the Possible Causes of the DTC P1A71 GMC?

Faulty 14 Volt Power Module Temperature Sensor 2
14 Volt Power Module Temperature Sensor 2 harness is open or shorted
14 Volt Power Module Temperature Sensor 2 circuit poor electrical connection

How to Fix the DTC P1A71 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 P1A71 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.

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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 P1A71 GMC Code

1. What are the common symptoms of OBDII code P1A71 GMC?

- Common symptoms include issues with the vehicle's electrical system, such as dimming lights, erratic behavior of electronic components, or battery-related problems.

2. What can cause the OBDII code P1A71 GMC to trigger?

- The code P1A71 GMC is typically triggered when there is a performance issue with the 14 Volt Power Module Temperature Sensor 2. This can be due to sensor failure, wiring issues, or problems with the power module itself.

3. How can I diagnose the OBDII code P1A71 GMC?

- Diagnosing this code usually involves using a scan tool to retrieve the specific fault code, checking the wiring and connections related to the temperature sensor, and testing the sensor's resistance and voltage values.

4. What are the potential repair options for OBDII code P1A71 GMC?

- Repair options may include replacing the 14 Volt Power Module Temperature Sensor 2, repairing any damaged wiring or connections, or addressing any issues with the power module itself.

5. Can I drive my vehicle with the OBDII code P1A71 GMC?

- It is not recommended to drive your vehicle with this code present, as it can lead to further electrical issues and potential component failures.

6. How serious is the OBDII code P1A71 GMC?

- The code P1A71 GMC should be addressed promptly to prevent potential electrical system malfunctions and ensure the overall health and performance of the vehicle.

7. Are there any DIY repair tips for fixing OBDII code P1A71 GMC?

- While some basic checks like inspecting for loose connections or damaged wiring can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for a thorough diagnosis and repair.

8. How much does it typically cost to repair OBDII code P1A71 GMC?

- The cost of repairing this code can vary depending on the exact cause of the issue, the cost of parts, and labor rates. It is advisable to obtain quotes from different repair shops for an accurate estimate.

9. Can a faulty 14 Volt Power Module Temperature Sensor 2 cause other issues in the vehicle?

- Yes, a malfunctioning temperature sensor can lead to other electrical problems in the vehicle, affecting the performance of various components relying on accurate temperature readings.

10. How can I prevent the OBDII code P1A71 GMC from recurring in the future?

- Regular maintenance of the vehicle's electrical system, including checking and replacing sensors as needed, can help prevent the recurrence of the P1A71 GMC fault code.