AutoCodes – Mercury – P1705 Mercury

P1705 Mercury Code - Transmission Range Sensor Out Of Self-Test Range

Quick Answer

The Transmission Range (TR) sensor is built in the Transmission Control Module (TCM), it detects the automatic transmission range information via the Hall-effect sensor and outputs the information to the TCM. Common causes include Gear selector not in Park/Neutral, Faulty Transmission Range Sensor, Transmission Range Sensor 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: P1705 Mercury indicates Transmission Range Sensor Out Of Self-Test Range .
Common causes: Common causes include Gear selector not in Park/Neutral, Faulty Transmission Range Sensor, Transmission Range Sensor 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 4,250

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 30, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1705 Mercury Description

The Transmission Range (TR) sensor is built in the Transmission Control Module (TCM), it detects the automatic transmission range information via the Hall-effect sensor and outputs the information to the TCM. The TCM reads the voltage and adjusts the automatic transmission range. The TCM monitors the Transmission Range Sensor. The TCM sets the Diagnostic Trouble Code (DTC) when the Transmission Range circuit not indicating Park/Neutral during self-test.

OBDII Code P1705 Mercury - Transmission Range Sensor Out Of Self-Test Range - AutoCodes.com — P1705 Mercury Code - Transmission Range Sensor Out Of Self-Test Range

What does this mean?

What are the Possible Causes of the DTC P1705 Mercury?

Gear selector not in Park/Neutral
Faulty Transmission Range Sensor
Transmission Range Sensor harness is open or shorted
Transmission Range Sensor circuit poor electrical connection

How to Fix the DTC P1705 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 P1705 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.