AutoCodesSaturn – P1E45 Saturn

P1E45 Saturn Code - 14 Volt Power Module Temperature Sensors 1-2 Not Plausible

Quick Answer

The 14 V power module, also referred to as the accessory DC power control module, constantly monitors system temperature to protect against over-heat conditions. Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted. 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
P1E45 Saturn indicates 14 Volt Power Module Temperature Sensors 1-2 Not Plausible.
Common causes
Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted.
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 788
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 23, 2020
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Code P1E45 Saturn Description

The 14 V power module, also referred to as the accessory DC power control module, constantly monitors system temperature to protect against over-heat conditions. The module also monitors the function of the temperature sensors. These sensors are internal to the 14 V power module and are not serviced separately from the control module.
OBDII Code P1E45 Saturn - 14 Volt Power Module Temperature Sensors 1-2 Not Plausible - AutoCodes.com
P1E45 Saturn Code - 14 Volt Power Module Temperature Sensors 1-2 Not Plausible

What are the Possible Causes of the DTC P1E45 Saturn?

  • Program 14 V Power Module
  • Faulty 14 V Power Module
  • 14 V Power Module harness is open or shorted
  • 14 V Power Module circuit poor electrical connection

How to Fix the DTC P1E45 Saturn?

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 P1E45 Saturn 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 P1E45 Saturn code?

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Need Help with the 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 P1E45 Saturn Code

What does the OBDII code P1E45 mean for a Saturn vehicle?

1. The P1E45 code indicates an issue with the 14 Volt Power Module Temperature Sensors 1 and 2, where their readings are not deemed plausible or consistent with each other. 2.

What are the common symptoms of the P1E45 code?

Symptoms may include an illuminated check engine light, reduced charging performance, erratic voltage regulation, or potential overheating of the power module. 3.

What causes the P1E45 code to appear?

The code is typically caused by faulty temperature sensors, wiring issues, poor electrical connections, or a malfunctioning 14 Volt Power Module. 4.

Can I still drive my Saturn with the P1E45 code?

While the vehicle may still be drivable, ignoring the code could lead to further electrical or charging system issues and potential damage to the power module. 5.

How do you diagnose the P1E45 code?

Diagnosis involves using a scan tool to read the code, inspecting the temperature sensors and related wiring, and checking for abnormal voltage or resistance values. 6.

How do you fix the P1E45 code on a Saturn?

Repairs may include replacing the faulty temperature sensors, repairing damaged wiring or connectors, or replacing the 14 Volt Power Module if necessary. 7.

How much does it cost to repair the P1E45 code?

Repair costs vary, but sensor replacement typically ranges from $100 to $300, while a new power module could cost upwards of $500, depending on labor rates and parts pricing. 8.

Can a weak battery cause the P1E45 code to appear?

A weak or failing battery is unlikely to directly cause this code but can exacerbate electrical issues, so it’s worth testing the battery during diagnosis. 9.

Will clearing the code fix the P1E45 issue?

Clearing the code without addressing the underlying problem will not fix the issue, and the code is likely to reappear. 10.

Can extreme weather conditions trigger the P1E45 code?

Extreme temperatures may affect sensor performance, but the code usually points to a more specific fault in the sensors or power module.

Discuss the causes and fixes for P1E45 Saturn OBDII Code

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