AutoCodes – GMC – P1705 GMC

P1705 GMC Code - Park Neutral Output Circuit Conditions

Quick Answer

With the key on or engine running, the Powertrain Control Module (PCM) detects that the Actual and Commanded state of the P/N output circuit did not match Common causes include Faulty Park/Neutral (P/N) Sensor, Park/Neutral (P/N) Sensor harness is open or shorted, Park/Neutral (P/N) Sensor 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: P1705 GMC indicates Park Neutral Output Circuit Conditions.
Common causes: Common causes include Faulty Park/Neutral (P/N) Sensor, Park/Neutral (P/N) Sensor harness is open or shorted, Park/Neutral (P/N) Sensor 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 1,899

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 Sep 11, 2019

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

With the key on or engine running, the Powertrain Control Module (PCM) detects that the Actual and Commanded state of the P/N output circuit did not match

OBDII Code P1705 GMC - Park Neutral Output Circuit Conditions - AutoCodes.com — P1705 GMC Code - Park Neutral Output Circuit Conditions

What does this mean?

What are the Possible Causes of the DTC P1705 GMC?

Faulty Park/Neutral (P/N) Sensor
Park/Neutral (P/N) Sensor harness is open or shorted
Park/Neutral (P/N) Sensor circuit poor electrical connection

How to Fix the DTC P1705 GMC?

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 GMC 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 P1705 GMC code?

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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.