AutoCodes – Generic – P1A71

P1A71 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 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 2,019

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

What does this mean?

What are the Possible Causes of the DTC P1A71?

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?

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 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 P1A71 code?

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Need Help with the Code?

Get the P1A71 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A71 Buick — 14 Volt Power Module Temperature Sensor 2 Performance
P1A71 Cadillac — 14 Volt Power Module Temperature Sensor 2 Performance
P1A71 Chevrolet — 14 Volt Power Module Temperature Sensor 2 Performance
P1A71 GMC — 14 Volt Power Module Temperature Sensor 2 Performance
P1A71 Saturn — 14 Volt Power Module Temperature Sensor 2 Performance

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 Code

1. What are the common symptoms of OBDII code P1A71 (14 Volt Power Module Temperature Sensor 2 Performance)?

- Common symptoms include illuminated check engine light, poor fuel efficiency, and potential drivability issues.

2. What could cause the OBDII code P1A71 to trigger?

- The code P1A71 may be triggered by a faulty 14 Volt Power Module Temperature Sensor 2, electrical issues, or a malfunction in the power module system.

3. How can I diagnose the OBDII code P1A71?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the 14 Volt Power Module Temperature Sensor 2 for proper function, and inspecting related wiring and connections.

4. Is it safe to continue driving with the OBDII code P1A71 present?

- It is generally not recommended to continue driving with the code present, as it can lead to further damage and potential safety hazards.

5. What are the repair options for OBDII code P1A71?

- Repair options may include replacing the faulty 14 Volt Power Module Temperature Sensor 2, addressing any electrical issues, or repairing/replacing the power module system.

6. Can I reset the OBDII code P1A71 without fixing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, the underlying issue causing the code will remain unresolved and may trigger the code again.

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

- The cost of repair can vary depending on the specific cause of the code, the parts needed for replacement, and labor costs at a repair shop.

8. Are there any DIY tips for addressing OBDII code P1A71?

- DIY tips may include checking for loose or damaged wiring, ensuring proper sensor connections, and following manufacturer guidelines for sensor replacement.

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

- Yes, a faulty sensor can affect the vehicle's performance, fuel efficiency, and overall drivability if not addressed promptly.

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

- Regular vehicle maintenance, addressing any electrical issues promptly, and using quality replacement parts can help prevent the code from recurring.