AutoCodes – Chevrolet – P159C 2018 Chevrolet Silverado

P159C 2018 Chevrolet Silverado Code - Power Take-Off Remote Engine Shutdown Switch Circuit

Quick Answer

The Power Take-Off (PTO) is an upfitter integrated system that allows the user to create an auxiliary power source. Common causes include Faulty Power Take-Off (PTO) Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off Control Module 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: P159C 2018 Chevrolet Silverado indicates Power Take-Off Remote Engine Shutdown Switch Circuit.
Common causes: Common causes include Faulty Power Take-Off (PTO) Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off Control Module 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 302

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 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P159C 2018 Chevrolet Silverado Description

The Power Take-Off (PTO) is an upfitter integrated system that allows the user to create an auxiliary power source. The PTO system specifically controls engine speed to values higher than normal base idle, PTO load relay engagement, and remote starting and shutdown of the engine. When the operator requests PTO using either the PTO switch or PTO remote, the engine RPM will increase to a default standby speed. The Engine Control Module (ECM) converts the data from the engine speed sensor to a 2 pulses/engine revolution signal. When PTO is engaged, the power take-off control module sends a serial data message to the ECM requesting engine speeds, in response to signals from the PTO switch or remote.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects a fault on the PTO remote engine shutdown switch circuit.

OBDII Code P159C 2018 Chevrolet Silverado - Power Take-Off Remote Engine Shutdown Switch Circuit - AutoCodes.com — P159C 2018 Chevrolet Silverado Code - Power Take-Off Remote Engine Shutdown Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P159C 2018 Chevrolet Silverado?

Faulty Power Take-Off (PTO) Control Module
Power Take-Off Control Module harness is open or shorted
Power Take-Off Control Module circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P159C 2018 Chevrolet Silverado?

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 P159C 2018 Chevrolet Silverado 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 P159C 2018 Chevrolet Silverado code?

Need more information on how to fix the P159C 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the 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.

Frequently Asked Questions about P159C 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P159C in a 2018 Chevrolet Silverado?

The common symptoms include the Power Take-Off (PTO) system not functioning properly, the remote engine shutdown switch circuit malfunctioning, and the Check Engine Light being illuminated.

2. What can cause the OBDII code P159C to appear in a 2018 Chevrolet Silverado?

The code P159C typically appears due to issues with the wiring or connections related to the Power Take-Off (PTO) remote engine shutdown switch circuit.

3. How serious is the OBDII code P159C in a 2018 Chevrolet Silverado?

While the code itself may not cause immediate drivability issues, it is important to address it promptly as it indicates a problem with the Power Take-Off system and remote engine shutdown switch circuit.

4. Can I continue driving my 2018 Chevrolet Silverado with the OBDII code P159C present?

It is generally not recommended to continue driving the vehicle with the code P159C present, as it can lead to further electrical issues and potential safety concerns related to the Power Take-Off system.

5. How can I diagnose and repair the OBDII code P159C in my 2018 Chevrolet Silverado?

Diagnosing and repairing the code P159C may require checking the wiring, connectors, and components related to the Power Take-Off remote engine shutdown switch circuit. It is advisable to consult a professional mechanic for an accurate diagnosis and repair.

6. Is it possible to reset the OBDII code P159C in a 2018 Chevrolet Silverado by disconnecting the battery?

While disconnecting the battery may reset the code temporarily, it is important to address the underlying issue causing the code P159C to prevent it from reoccurring.

7. Are there any specific maintenance tips to prevent the OBDII code P159C in a 2018 Chevrolet Silverado?

Regularly inspecting the wiring and connections related to the Power Take-Off system, as well as ensuring proper maintenance of the remote engine shutdown switch circuit, can help prevent the code P159C from appearing.

8. How much does it typically cost to repair the OBDII code P159C in a 2018 Chevrolet Silverado?

The cost of repairing the code P159C can vary depending on the exact cause of the issue and labor rates in your area. It is recommended to obtain a few quotes from reputable repair shops for an accurate estimate.

9. Can the OBDII code P159C in a 2018 Chevrolet Silverado be a recurring problem?

If the root cause of the code P159C is not properly diagnosed and repaired, it may become a recurring issue. It is essential to address the underlying problem to prevent the code from reappearing.

10. Is it safe to attempt DIY repairs for the OBDII code P159C in a 2018 Chevrolet Silverado?

Unless you have experience and knowledge working on automotive electrical systems, it is generally not recommended to attempt DIY repairs for the code P159C. Consulting a professional mechanic is advisable to ensure the issue is addressed correctly and safely.