AutoCodes – Mercury – P1501 Mercury

P1501 Mercury Code - Vehicle Speed Sensor Out Of Self Test Range

Quick Answer

The P1501 code Indicates the Vehicle Speed Sensor (VSS) input signal is out of self-test range. Common causes include Faulty Vehicle speed sensor, Vehicle speed sensor harness is open or shorted, Vehicle speed sensor electrical 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: P1501 Mercury indicates Vehicle Speed Sensor Out Of Self Test Range.
Common causes: Common causes include Faulty Vehicle speed sensor, Vehicle speed sensor harness is open or shorted, Vehicle speed sensor electrical 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 1,683

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 Aug 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1501 Mercury Description

The P1501 code Indicates the Vehicle Speed Sensor (VSS) input signal is out of self-test range. If the Powertrain Control Module (PCM) detects a VSS input signal any time during the self-test, DTC P1501 is set and the test aborts.

OBDII Code P1501 Mercury - Vehicle Speed Sensor Out Of Self Test Range - AutoCodes.com — P1501 Mercury Code - Vehicle Speed Sensor Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1501 Mercury?

Faulty Vehicle speed sensor
Vehicle speed sensor harness is open or shorted
Vehicle speed sensor electrical circuit poor electrical connection
Noise on the VSS input signal from the radio frequency interference or electro magnetic interference
External sources, such as ignition wires, the charging circuit or aftermarket equipment

How to Fix the DTC P1501 Mercury?

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 P1501 Mercury 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.