Engine-CodesGMC – P1705 GMC

P1705 GMC Code - Park Neutral Output Circuit Conditions

Quick Answer

The P1705 diagnostic trouble code for GMC vehicles relates to the Park Neutral Output Circuit Conditions. Common causes include Faulty park/neutral position switch, Damaged wiring or connectors in the circuit, Corrosion in the electrical connections. 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 position switch, Damaged wiring or connectors in the circuit, Corrosion in the electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1705 GMC Description

The P1705 diagnostic trouble code for GMC vehicles relates to the Park Neutral Output Circuit Conditions. This code indicates that there is a malfunction in the circuit responsible for transmitting signals related to the park or neutral position of the transmission. In modern vehicles, this information is crucial for various systems to operate correctly, such as the starter motor engagement, cruise control, and transmission shifting.

OBDII Code P1705 GMC - Park Neutral Output Circuit Conditions
P1705 GMC Code - Park Neutral Output Circuit Conditions

Common Causes of P1705 GMC

  1. Faulty park/neutral position switch
  2. Damaged wiring or connectors in the circuit
  3. Corrosion in the electrical connections
  4. Faulty control module
  5. Software issues in the vehicle's computer system

Symptoms of P1705 GMC

  1. Difficulty starting the vehicle
  2. Transmission shifting issues
  3. Stuck in a particular gear
  4. Cruise control malfunction
  5. Check engine light illuminated

How to Fix P1705 GMC

  1. Begin by conducting a thorough visual inspection of the park/neutral position switch and the surrounding wiring. Look for any signs of damage, corrosion, or loose connections.
  2. Test the park/neutral position switch using a multimeter to check for continuity and proper operation.
  3. If the switch is faulty, replace it with a new one and ensure proper alignment and calibration.
  4. Check the wiring harness for any damage or breaks and repair or replace as necessary.
  5. Clear the trouble code from the vehicle's computer system using a diagnostic scanner and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P1705 GMC

The cost of repairing the P1705 code for GMC vehicles can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $150 to $400 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to check with local auto repair shops for a more precise estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing.

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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.

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