AutoCodes – Cadillac – P1EA6 Cadillac

P1EA6 Cadillac 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 Cadillac 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 799
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 24, 2020
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Code P1EA6 Cadillac 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 Cadillac - 14 Volt Power Module Cooling Fan Control Circuit - AutoCodes.com
P1EA6 Cadillac Code - 14 Volt Power Module Cooling Fan Control Circuit

What are the Possible Causes of the DTC P1EA6 Cadillac?

  • 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 Cadillac?

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 Cadillac 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 P1EA6 Cadillac Code

What does the OBDII code P1EA6 mean for my Cadillac?

The OBDII code P1EA6 indicates a malfunction in the 14 Volt Power Module Cooling Fan Control Circuit, which is responsible for regulating the cooling fan for the power module.

What are the common symptoms of a P1EA6 code?

Common symptoms include overheating of the power module, the cooling fan not operating, and potential warning lights on the dashboard.

What could cause the P1EA6 code to trigger?

Causes may include a faulty cooling fan, a defective power module, issues with the wiring or connectors, or a malfunctioning control module.

How can I diagnose the P1EA6 code?

To diagnose the P1EA6 code, use an OBDII scanner to confirm the code, inspect the cooling fan and related wiring, and test the fan operation and control signals.

What are some common repairs for a P1EA6 code?

Common repairs may involve replacing the cooling fan, repairing damaged wiring, replacing the power module, or reprogramming or replacing the control module.

Is it safe to drive with a P1EA6 code?

Driving with a P1EA6 code can lead to overheating of the power module, which can cause further damage. It is advisable to address the issue as soon as possible.

How much might it cost to repair a P1EA6 code?

Repair costs can vary widely depending on the specific issue, but you might expect to pay anywhere from $100 to $800 for parts and labor.

Can I reset the P1EA6 code myself?

Yes, you can reset the code using an OBDII scanner, but if the underlying issue is not fixed, the code is likely to return.

Will the P1EA6 code affect my vehicle's performance?

Yes, if the cooling fan is not functioning properly, it can lead to overheating, which may affect overall vehicle performance and reliability.

Discuss the causes and fixes for P1EA6 Cadillac OBDII Code

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