AutoCodes – Generic – P064B

P064B Code - PTO Control Module

Quick Answer

The Engine Control Module (ECM) monitors the Power Take Off (PTO) Control Module. Common causes include Faulty Power Take Off (PTO), PTO Control Module harness is open or shorted, PTO 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: P064B indicates PTO Control Module.
Common causes: Common causes include Faulty Power Take Off (PTO), PTO Control Module harness is open or shorted, PTO 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 2,314

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 May 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P064B Description

The Engine Control Module (ECM) monitors the Power Take Off (PTO) Control Module. The ECM sets the OBDII code when PTO Control Module is not working properly.

OBDII Code P064B - PTO Control Module - AutoCodes.com — P064B Code - PTO Control Module

What does this mean?

What are the Possible Causes of the DTC P064B?

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

How to Fix the DTC P064B?

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 P064B 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 P064B code?

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Need Help with the Code?

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Information for Specific Makes

P064B Chevrolet — PTO Control Module
P064B GMC — PTO Control Module

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.