AutoCodes – Generic – P1A72

P1A72 Code - 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage

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: P1A72 indicates 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage.
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 1,355

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 P1A72 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 P1A72 - 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage - AutoCodes.com — P1A72 Code - 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1A72?

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 P1A72?

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 P1A72 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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Need Help with the Code?

Get the P1A72 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A72 Buick — 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage
P1A72 Cadillac — 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage
P1A72 Chevrolet — 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage
P1A72 GMC — 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage
P1A72 Saturn — 14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage

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 P1A72 Code

1. What are common symptoms of OBDII code P1A72 (14 Volt Power Module Temperature Sensor 2 Circuit Low Voltage)?

- Common symptoms include poor fuel efficiency, rough idling, and potential stalling of the vehicle.

2. What are possible causes of OBDII code P1A72?

- Possible causes include a faulty 14 volt power module temperature sensor, damaged wiring or connectors, or issues with the power module itself.

3. How can I diagnose the cause of OBDII code P1A72?

- Diagnosis involves using a diagnostic scanner to read the code, checking the wiring and connectors for damage, and testing the 14 volt power module temperature sensor for proper functionality.

4. Is it safe to continue driving with OBDII code P1A72 present?

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

5. Can I repair OBDII code P1A72 on my own?

- While some DIY enthusiasts may attempt to repair this code on their own, it is recommended to seek professional help to ensure the issue is properly diagnosed and fixed.

6. How much does it typically cost to repair OBDII code P1A72?

- Repair costs can vary depending on the specific cause of the code, but they can range from $100 to $300 for parts and labor.

7. Are there any tips to prevent OBDII code P1A72 from occurring?

- Regular maintenance of your vehicle, including checking the power module components and sensors, can help prevent this code from occurring.

8. Can a faulty 14 volt power module temperature sensor cause other issues in the vehicle?

- Yes, a faulty sensor can cause other issues such as poor engine performance, incorrect temperature readings, and potential damage to other components.

9. How urgent is it to address OBDII code P1A72?

- It is recommended to address this code as soon as possible to prevent further damage to the vehicle and to ensure optimal performance.

10. Can OBDII code P1A72 be triggered by a loose or corroded connection?

- Yes, a loose or corroded connection to the 14 volt power module temperature sensor can trigger this code, so it's important to check all connections during diagnosis.