AutoCodes – GMC – P1A72 GMC

P1A72 GMC 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 GMC 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 801

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

What does this mean?

What are the Possible Causes of the DTC P1A72 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 P1A72 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 P1A72 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 P1A72 GMC Code

1. What are the common symptoms of OBDII code P1A72 in a GMC vehicle?

- Common symptoms include poor fuel economy, reduced engine performance, illuminated Check Engine light, and potential issues with the vehicle's hybrid system.

2. What does the OBDII code P1A72 GMC indicate?

- The code indicates a low voltage condition in the 14 Volt Power Module Temperature Sensor 2 circuit in the vehicle.

3. What are the possible causes of OBDII code P1A72 in a GMC vehicle?

- Possible causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, issues with the power module, or a problem with the vehicle's hybrid system.

4. How can I diagnose the cause of OBDII code P1A72 in my GMC vehicle?

- Diagnose by conducting a thorough inspection of the temperature sensor, checking the sensor circuit for any damage, testing the power module, and ensuring the hybrid system is functioning properly.

5. Can I drive my GMC vehicle with OBDII code P1A72?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P1A72 in my GMC vehicle?

- Repair options include replacing the faulty temperature sensor, repairing any damaged wiring or connectors, addressing issues with the power module, and ensuring the hybrid system is functioning correctly.

7. Is it possible to reset OBDII code P1A72 in a GMC vehicle without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it will likely return if the root cause of the problem is not addressed. It's important to fix the issue to prevent further complications.

8. Can a DIY enthusiast fix OBDII code P1A72 in a GMC vehicle?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and using proper diagnostic equipment.

9. How much does it cost to repair OBDII code P1A72 in a GMC vehicle?

- The cost of repair can vary depending on the specific cause of the issue, parts needed, labor rates, and whether you choose to fix it yourself or take it to a professional mechanic.

10. Are there any preventive measures to avoid OBDII code P1A72 in a GMC vehicle?

- Regular maintenance, such as checking the hybrid system components and monitoring sensor performance, can help prevent issues that may trigger this code.