AutoCodes – Generic – P1EB8

P1EB8 Code - Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset

Quick Answer

This is an internal fault detection of the motor control module. Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter 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: P1EB8 indicates Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset.
Common causes: Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter 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 883

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 P1EB8 Description

This is an internal fault detection of the motor control module. The motor control module is internal to the power inverter module, often referred to as the drive motor generator power inverter module, and is not serviced separately. This fault is handled inside the hybrid powertrain and motor control modules and no external circuits are involved.

OBDII Code P1EB8 - Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset - AutoCodes.com — P1EB8 Code - Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset

What does this mean?

What are the Possible Causes of the DTC P1EB8?

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

How to Fix the DTC P1EB8?

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 P1EB8 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 P1EB8 code?

Need more information on how to fix the P1EB8 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1EB8 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1EB8 Buick — Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset
P1EB8 Cadillac — Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset
P1EB8 Chevrolet — Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset
P1EB8 GMC — Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset
P1EB8 Saturn — Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset

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 P1EB8 Code

1. What does OBDII code P1EB8 mean?

P1EB8 indicates an issue with the Auxiliary Transmission Fluid Pump Control Module's long-term memory, often caused by a reset or failure to retain data.

2. What are the common symptoms of code P1EB8?

Symptoms may include erratic transmission behavior, delayed shifting, illuminated check engine light, or reduced fuel efficiency.

3. What causes the P1EB8 code to appear?

Common causes include a faulty auxiliary transmission fluid pump control module, software glitches, or a loss of power to the module.

4. Can I drive with the P1EB8 code active?

While the vehicle may still drive, it is not recommended as transmission performance could be compromised, potentially leading to further damage.

5. How do you diagnose the P1EB8 code?

Diagnosis involves scanning for codes, checking the integrity of the control module wiring and connections, and testing the auxiliary pumpâ€™s functionality.

6. How is the P1EB8 code fixed?

Repairs may include reprogramming or replacing the auxiliary fluid pump control module, verifying battery connections, or addressing wiring issues.

7. Does clearing the P1EB8 code solve the problem?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.

8. Is the P1EB8 code specific to certain vehicles?

Yes, P1EB8 is typically found in vehicles equipped with an auxiliary transmission fluid pump, such as hybrid or electric models.

9. How much does it cost to repair the P1EB8 code?

Repair costs can vary, but replacing or reprogramming the control module can range from $200 to $600 depending on labor and parts.

10. Can low transmission fluid cause the P1EB8 code?

While low fluid levels are not a direct cause, they can contribute to transmission issues that may exacerbate the problem. Always check the fluid level as part of the diagnosis.