Engine-CodesGMC – P159D 2016 GMC Sierra

P159D 2016 GMC Sierra Code - Power Take-Off Remote Mode Switch Circuit

Quick Answer

The P159D code for a 2016 GMC Sierra refers to an issue with the Power Take-Off (PTO) Remote Mode Switch Circuit. Common causes include Faulty remote mode switch, Wiring or connector issues in the circuit, Short circuit in the system. 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
P159D 2016 GMC Sierra indicates Power Take-Off Remote Mode Switch Circuit.
Common causes
Common causes include Faulty remote mode switch, Wiring or connector issues in the circuit, Short circuit in the system.
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 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P159D 2016 GMC Sierra Description

The P159D code for a 2016 GMC Sierra refers to an issue with the Power Take-Off (PTO) Remote Mode Switch Circuit. The PTO system is responsible for allowing the vehicle to power auxiliary equipment such as snowplows, tow trucks, or other work-related attachments. The remote mode switch circuit is a critical component of this system, as it allows the driver to engage or disengage the PTO from a distance.

OBDII Code P159D 2016 GMC Sierra - Power Take-Off Remote Mode Switch Circuit
P159D 2016 GMC Sierra Code - Power Take-Off Remote Mode Switch Circuit

Common Causes of P159D 2016 GMC Sierra

  1. Faulty remote mode switch.
  2. Wiring or connector issues in the circuit.
  3. Short circuit in the system.
  4. Open circuit in the wiring harness.
  5. Damaged components in the PTO system.

Symptoms of P159D 2016 GMC Sierra

  1. Difficulty engaging or disengaging the PTO system remotely.
  2. Inability to control auxiliary equipment attached to the vehicle.
  3. Warning light on the dashboard indicating an issue with the PTO system.
  4. Loss of power or functionality in the PTO system.

How to Fix P159D 2016 GMC Sierra

  1. Use a diagnostic scanner to read and record the fault codes associated with the PTO system.
  2. Inspect the wiring and connectors for any visible damage or corrosion.
  3. Test the remote mode switch for proper functionality.
  4. Repair or replace any faulty wiring, connectors, or components as needed.
  5. Clear the fault codes and test the PTO system to ensure proper operation.

Cost to Fix P159D 2016 GMC Sierra

The typical repair costs for addressing the P159D code on a 2016 GMC Sierra can range from $200 to $500, depending on the extent of the damage and the cost of replacement parts. This estimate includes both parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local repair shops for a more accurate estimate before proceeding with the repair.

Need more information about the P159D 2016 GMC Sierra code?

Need more information on how to fix the P159D 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P159D 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P159D 2016 GMC Sierra Code

1. What does the OBDII code P159D mean on a 2016 GMC Sierra?

The P159D code indicates a problem with the Power Take-Off (PTO) Remote Mode Switch Circuit, which is responsible for enabling and controlling the PTO system.

2. What are the common symptoms of code P159D on a 2016 GMC Sierra?

Symptoms may include the PTO system not engaging, a check engine light, or a message on the dashboard indicating a PTO system malfunction.

3. What causes the P159D code to appear on a GMC Sierra?

Common causes include a faulty PTO remote mode switch, damaged wiring or connectors in the switch circuit, or an issue with the powertrain control module (PCM).

4. Can I still drive my 2016 GMC Sierra with the P159D code?

Yes, you can typically drive the truck, but the PTO system may not function properly, which could impact operations like powering auxiliary equipment.

5. How do I diagnose the P159D code on my GMC Sierra?

Start by inspecting the PTO remote mode switch, its wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

6. How do I fix the P159D code on a 2016 GMC Sierra?

Repairs may involve replacing the PTO remote mode switch, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. What tools are needed to troubleshoot the P159D code?

You’ll need an OBDII scanner, a multimeter for electrical testing, and possibly wiring diagrams for the PTO system to assist in diagnostics.

8. Can a bad PTO remote mode switch cause the P159D code?

Yes, a faulty or defective PTO remote mode switch is one of the most common causes of this code.

9. What should I check first when troubleshooting the P159D code?

Begin by visually inspecting the PTO remote mode switch and its wiring harness for signs of damage, wear, or loose connections.

10. How much does it cost to fix the P159D code on a 2016 GMC Sierra?

Repair costs vary depending on the exact issue but can range from $50 for a new switch to $500 or more if extensive wiring repairs or PCM replacement is required.

Discuss the causes and fixes for P159D 2016 GMC Sierra OBDII Code

Code P159D 2016 GMC Sierra comments

No comments found for this page.