AutoCodes – Lincoln – U300E Lincoln

U300E Lincoln Code - ABS Module Ignition Input On

Quick Answer

The Anti-Lock Brake System (ABS) Module, hydraulic pump and solenoid valves require an operating voltage that is between 10 and 17 volts. Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) 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: U300E Lincoln indicates ABS Module Ignition Input On.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) 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 986

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 Jun 18, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U300E Lincoln Description

The Anti-Lock Brake System (ABS) Module, hydraulic pump and solenoid valves require an operating voltage that is between 10 and 17 volts. The ABS module receives this voltage from the BJB. The ABS module has a single ground circuit located in the engine compartment wiring harness. Excessive resistance or an open in one or more of these circuits, a discharged battery or a inoperative charging system results in the ABS module setting a DTC.
Internally to the ABS module, the ignition voltage supply circuit is used as a redundant back up for the battery voltage supply circuit in case the battery voltage supply circuit is interrupted. If the battery voltage supply circuit is interrupted, the ABS module immediately shuts off and does not enter the power latch mode. The module uses the power latch mode to write certain parameters (such as learned offsets numbers) to non-volatile memory. At the beginning of each ignition cycle, a counter value is increased by 1 after a specified vehicle speed has been reached and a specified time has elapsed. When the ABS module enters the power latch mode, this counter is reset to 0.

OBDII Code U300E Lincoln - ABS Module Ignition Input On - AutoCodes.com — U300E Lincoln Code - ABS Module Ignition Input On

What does this mean?

What are the Possible Causes of the DTC U300E Lincoln?

Faulty Anti-Lock Brake System (ABS) Module
Anti-Lock Brake System (ABS) Module harness is open or shorted
Anti-Lock Brake System (ABS) Module circuit poor electrical connection

How to Fix the DTC U300E Lincoln?

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 does this mean?

Code Tech Notes

This DTC sets in continuous memory if the power mode message from the BCM indicates the ignition is ON, but the ignition voltage supplied to the ABS module is missing.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U300E Lincoln 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 U300E Lincoln Code

1. What does the OBDII code U300E for Lincoln ABS Module Ignition Input On mean?

The U300E code indicates that the ABS module has detected that the ignition input signal is continuously active.

2. What are the common symptoms of the U300E code in a Lincoln vehicle?

Common symptoms include illuminated ABS warning light on the dashboard, potential loss of ABS functionality, and possible traction control system issues.

3. What are the possible causes of the U300E code in a Lincoln vehicle?

Potential causes of the U300E code include a faulty ABS module, damaged wiring or connectors in the ABS system, or issues with the ignition switch.

4. How can I diagnose the U300E code in my Lincoln vehicle?

Diagnosis typically involves using a professional OBDII scanner to retrieve the code and then performing a thorough inspection of the ABS system components, wiring, and connections.

5. Is it safe to drive with the U300E code present in a Lincoln vehicle?

It is not recommended to drive with the U300E code active, as it could affect the proper functioning of the ABS system, potentially compromising safety.

6. Can I reset the U300E code in my Lincoln vehicle myself?

While you can clear the code using an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair the U300E code in a Lincoln vehicle?

The cost of repairing the U300E code can vary depending on the specific cause of the issue, but it may involve replacing the ABS module, repairing wiring, or addressing other related components.

8. Are there any DIY tips for fixing the U300E code in a Lincoln vehicle?

DIY tips may include checking and cleaning ABS system connectors, inspecting wiring for damage, and ensuring proper connection to the ignition switch.

9. Can the U300E code be a recurring issue in Lincoln vehicles?

If the underlying cause of the U300E code is not properly addressed, it is possible for the issue to recur even after the code is cleared.

10. How long does it typically take to repair the U300E code in a Lincoln vehicle?

The repair time for the U300E code can vary depending on the diagnostic process and the specific repair needed, ranging from a few hours to a full day in some cases.