AutoCodes – GMC – P1EA6 GMC

P1EA6 GMC Code - 14 Volt Power Module Cooling Fan Control Circuit

Quick Answer

The 14 V power module cooling fan blows air through the 14 V power module to control the temperature of the 14 V power module. Common causes include Faulty 14 Volt Power Module, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module 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: P1EA6 GMC indicates 14 Volt Power Module Cooling Fan Control Circuit.
Common causes: Common causes include Faulty 14 Volt Power Module, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module 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 906

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1EA6 GMC Description

The 14 V power module cooling fan blows air through the 14 V power module to control the temperature of the 14 V power module. The fan is controlled with a pulse-width modulated signal sent from the hybrid/EV powertrain control module 2 to the 14 V power module fan. The longer the duty cycle on the signal the higher the fan speed. Maximum fan speed is 3900 RPM. An enable signal from the hybrid/EV powertrain control module 2 to the 14 V power module fan provides overall control of the fan. When this circuit is high, the fan can operate. The 14 V power module fan provides a hard-wired pulse-width modulated feedback signal to the hybrid/EV powertrain control module 2. During normal operation, this feedback signal provides fan speed information. The 14 V power module fan has some self-diagnostic capability. If it determines there is an internal fault it provides this information on this same feedback circuit instead of speed information.

OBDII Code P1EA6 GMC - 14 Volt Power Module Cooling Fan Control Circuit - AutoCodes.com — P1EA6 GMC Code - 14 Volt Power Module Cooling Fan Control Circuit

What does this mean?

What are the Possible Causes of the DTC P1EA6 GMC?

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

How to Fix the DTC P1EA6 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 P1EA6 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 P1EA6 GMC 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 P1EA6 GMC Code

1. What are common symptoms of OBDII code P1EA6 in a GMC related to the 14 Volt Power Module Cooling Fan Control Circuit?

- Common symptoms include overheating of the engine, illumination of the Check Engine Light, and issues with the cooling fan operation.

2. What are some possible causes of OBDII code P1EA6 GMC 14 Volt Power Module Cooling Fan Control Circuit?

- Possible causes include a faulty 14 volt power module, a malfunctioning cooling fan control circuit, wiring issues, or a defective cooling fan.

3. How can I diagnose the source of OBDII code P1EA6 in my GMC?

- To diagnose the issue, you can use an OBDII scanner to retrieve the code, visually inspect the cooling fan and related wiring, test the 14 volt power module, and check for any loose connections.

4. Is it safe to continue driving my GMC with OBDII code P1EA6 present?

- It is not recommended to continue driving your GMC with this code present, as it can lead to engine overheating and potentially cause further damage.

5. Can I repair OBDII code P1EA6 GMC 14 Volt Power Module Cooling Fan Control Circuit myself?

- Depending on your skill level and access to tools, you may be able to address this issue yourself by replacing a faulty cooling fan, repairing wiring, or replacing the 14 volt power module. However, professional diagnosis and repair may be required in some cases.

6. How much does it typically cost to repair OBDII code P1EA6 in a GMC?

- The cost of repairing OBDII code P1EA6 can vary depending on the exact cause of the issue, labor rates in your area, and the cost of parts. It is advisable to get estimates from local mechanics or dealerships.

7. Can a faulty 14 volt power module be repaired, or does it need to be replaced?

- In most cases, a faulty 14 volt power module will need to be replaced rather than repaired. It is important to ensure that the replacement part is compatible with your specific GMC model.

8. How urgent is it to address OBDII code P1EA6 GMC 14 Volt Power Module Cooling Fan Control Circuit?

- It is recommended to address this code as soon as possible to prevent potential engine overheating and damage. Ignoring the issue can lead to more costly repairs down the line.

9. Are there any preventive maintenance tips to avoid OBDII code P1EA6 in the future?

- To prevent OBDII code P1EA6 from occurring in the future, regularly inspect your cooling system, maintain proper coolant levels, and address any cooling system issues promptly.

10. Can resetting the Check Engine Light make OBDII code P1EA6 disappear permanently?

- Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue causing OBDII code P1EA6 is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.