AutoCodes – Chevrolet – P159C 2016 Chevrolet Silverado

P159C 2016 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 2016 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 1,175

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 2016 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 2016 Chevrolet Silverado - Power Take-Off Remote Engine Shutdown Switch Circuit - AutoCodes.com — P159C 2016 Chevrolet Silverado Code - Power Take-Off Remote Engine Shutdown Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P159C 2016 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 2016 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 2016 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 2016 Chevrolet Silverado code?

Need more information on how to fix the P159C 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2016 Chevrolet Silverado Code

1. What does the OBDII code P159C mean on a 2016 Chevrolet Silverado?

P159C refers to an issue with the Power Take-Off (PTO) Remote Engine Shutdown Switch Circuit, indicating a problem with the circuit's functionality or communication.

2. What are the common symptoms of code P159C on a 2016 Chevrolet Silverado?

Symptoms may include the PTO system failing to engage or disengage, the engine shutting down unexpectedly, or a check engine light.

3. What causes the P159C code to appear?

Common causes include a faulty PTO remote engine shutdown switch, damaged wiring or connectors in the circuit, or a malfunctioning Engine Control Module (ECM).

4. Can I drive my Silverado with code P159C active?

While the truck may still drive, operating it with an active P159C code could lead to unexpected engine shutdowns, making it unsafe, especially under load.

5. How do I diagnose the P159C code on my Silverado?

Start by inspecting the PTO remote engine shutdown switch, its wiring, and connectors for damage or corrosion. If no issues are found, use a scan tool to check for related codes or test the circuitâ€™s continuity.

6. How can I fix the P159C code on my 2016 Silverado?

Repairs may include replacing the faulty PTO remote engine shutdown switch, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if necessary.

7. Is the P159C code specific to the 2016 Chevrolet Silverado?

No, the P159C code applies to other vehicles equipped with PTO systems, but the specific symptoms and fixes may vary by make and model.

8. How much does it cost to repair code P159C on a Silverado?

Repair costs can range from $50 to $500, depending on whether the switch, wiring, or ECM needs replacement or repair.

9. What tools are needed to troubleshoot the P159C code?

Youâ€™ll need a diagnostic scan tool, a multimeter for checking continuity, and potentially wiring diagrams for the PTO circuit.

10. Can a software update resolve the P159C code on my Silverado?

In some cases, a software update for the ECM may resolve the issue if itâ€™s related to a known programming error. Always check for Technical Service Bulletins (TSBs) for your vehicle.