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Engine-Codes – Generic – P1598

P1598 Code - Power Take Off Engine Speed Request Signal Message Counter Incorrect

Quick Answer

The P1598 diagnostic trouble code (DTC) refers to a Power Take Off (PTO) Engine Speed Request Signal Message Counter Incorrect. Common causes include Faulty wiring or connections in the power take off system, Malfunctioning engine speed request message counter, Communication issues between the power take off system and engine speed request message counter. 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
P1598 indicates Power Take Off Engine Speed Request Signal Message Counter Incorrect.
Common causes
Common causes include Faulty wiring or connections in the power take off system, Malfunctioning engine speed request message counter, Communication issues between the power take off system and engine speed request message counter.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1598 Description

The P1598 diagnostic trouble code (DTC) refers to a Power Take Off (PTO) Engine Speed Request Signal Message Counter Incorrect. In simpler terms, this code indicates that there is a discrepancy in the signal being sent from the power take off system to the engine speed request message counter. The power take off system is a mechanism in some vehicles that allows power from the engine to be transferred to auxiliary equipment such as snow plows, dump bodies, or hydraulic systems.

OBDII Code P1598 - Power Take Off Engine Speed Request Signal Message Counter Incorrect
P1598 Code - Power Take Off Engine Speed Request Signal Message Counter Incorrect

Common Causes of P1598

  1. Faulty wiring or connections in the power take off system
  2. Malfunctioning engine speed request message counter
  3. Communication issues between the power take off system and engine speed request message counter
  4. Electrical issues in the power take off system
  5. Software glitch in the vehicle's computer system

Symptoms of P1598

  1. Power take off system not engaging properly
  2. Engine speed fluctuations
  3. Loss of power when using auxiliary equipment
  4. Engine stalls when engaging power take off system
  5. Dashboard warning light illuminated

How to Fix P1598

  1. Diagnose the exact cause of the P1598 code using a professional automotive scan tool.
  2. Inspect the wiring and connections in the power take off system for any damage or corrosion.
  3. Test the engine speed request message counter for proper functionality.
  4. Repair or replace any faulty components identified during the diagnostic process.
  5. Clear the code from the vehicle's computer system and test the power take off system to ensure proper operation.

Cost to Fix P1598

The typical repair costs for addressing a P1598 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair could range from $200 to $500. However, it's important to note that labor rates at auto repair shops can vary widely, with hourly rates typically falling between $80 and $150. Additionally, prices for parts can vary based on the vehicle make and model. For a more accurate estimate, it's recommended to consult with a local auto repair shop.

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Code P1598 Information for Specific Makes

  • P1598 BMW — Idle Air Control Actuator 2 Random Access Memory Error
  • P1598 Buick — Power Take Off Engine Speed Request Signal Message Counter Incorrect
  • P1598 Cadillac — Power Take Off Engine Speed Request Signal Message Counter Incorrect
  • P1598 Chevrolet — Power Take Off Engine Speed Request Signal Message Counter Incorrect
  • P1598 Chrysler — A/C Pressure Sensor High Input Conditions
  • P1598 Dodge — A/C Pressure Sensor High Input Conditions
  • P1598 GMC — Power Take Off Engine Speed Request Signal Message Counter Incorrect
  • P1598 Jeep — A/C Pressure Sensor High Input Conditions
  • P1598 MINI — Idle Air Control Actuator 2 Random Access Memory Error
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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