AutoCodes – Saturn – P1E18 Saturn

P1E18 Saturn Code - Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit

Quick Answer

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter 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: P1E18 Saturn indicates Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit.
Common causes: Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter 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 954

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 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E18 Saturn Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. Each motor control module utilizes a 5 V reference power supply for internal circuit needs. This fault is handled inside the power inverter module and no external circuits are involved. The motor control modules and the hybrid powertrain control module are part of the power inverter module and are not serviced separately.

OBDII Code P1E18 Saturn - Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit - AutoCodes.com — P1E18 Saturn Code - Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit

What does this mean?

What are the Possible Causes of the DTC P1E18 Saturn?

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

How to Fix the DTC P1E18 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 P1E18 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.

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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 P1E18 Saturn Code

1. What are common symptoms of OBDII code P1E18 in a Saturn related to the Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit?

- Common symptoms include transmission shifting issues, reduced power, and illuminated warning lights on the dashboard.

2. What are the possible causes of OBDII code P1E18 in a Saturn?

- The code P1E18 in a Saturn may be triggered by a faulty auxiliary transmission fluid pump control module, wiring issues, or a defective 5-volt reference circuit.

3. How can I diagnose the cause of OBDII code P1E18 in my Saturn?

- Diagnosing OBDII code P1E18 in a Saturn involves using a scan tool to retrieve the code, checking the auxiliary transmission fluid pump control module, inspecting the wiring for damage, and testing the 5-volt reference circuit.

4. Can I continue driving my Saturn with OBDII code P1E18 present?

- It is not recommended to continue driving your Saturn with OBDII code P1E18 present, as it can lead to further transmission issues and potential damage if left unresolved.

5. How can I repair OBDII code P1E18 in my Saturn?

- Repairing OBDII code P1E18 in a Saturn typically involves replacing the faulty auxiliary transmission fluid pump control module, repairing any damaged wiring, and ensuring proper functioning of the 5-volt reference circuit.

6. Is it safe to clear the OBDII code P1E18 in my Saturn using a scan tool?

- Clearing the OBDII code P1E18 in a Saturn using a scan tool is safe after performing the necessary repairs to address the underlying issue causing the code.

7. Can a DIY enthusiast fix OBDII code P1E18 in a Saturn?

- While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P1E18 in a Saturn, it is recommended to seek professional help for proper diagnosis and repair to ensure the issue is resolved correctly.

8. How much does it cost to fix OBDII code P1E18 in a Saturn at a repair shop?

- The cost to fix OBDII code P1E18 in a Saturn at a repair shop can vary depending on the extent of the issue, parts needed, and labor costs. It is advisable to obtain quotes from different shops for comparison.

9. Will OBDII code P1E18 in a Saturn affect fuel efficiency?

- OBDII code P1E18 in a Saturn related to the Auxiliary Transmission Fluid Pump Control Module 5 Volt Reference Circuit can potentially affect fuel efficiency due to transmission issues causing improper shifting and power delivery.

10. Can OBDII code P1E18 in a Saturn cause long-term damage if not addressed promptly?

- Yes, OBDII code P1E18 in a Saturn can cause long-term damage if not addressed promptly, as it may lead to further transmission problems and potential safety hazards while driving.