Engine-CodesGeneric – P0586

P0586 Code - Speed Control Vent Control Circuit

Quick Answer

The P0586 diagnostic trouble code (DTC) refers to a malfunction in the speed control vent control circuit. Common causes include Faulty speed control vent control circuit, Loose or damaged wiring in the circuit, Malfunctioning cruise control switch. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0586 indicates Speed Control Vent Control Circuit.
Common causes
Common causes include Faulty speed control vent control circuit, Loose or damaged wiring in the circuit, Malfunctioning cruise control switch.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0586 Description

The P0586 diagnostic trouble code (DTC) refers to a malfunction in the speed control vent control circuit. This code is typically found in vehicles equipped with cruise control systems, as the vent control circuit is responsible for regulating the speed control system's operation. When this circuit fails, it can lead to issues with the vehicle's cruise control functionality, affecting the driver's ability to set and maintain a constant speed.

OBDII Code P0586 - Speed Control Vent Control Circuit
P0586 Code - Speed Control Vent Control Circuit

Common Causes of P0586

  1. Faulty speed control vent control circuit
  2. Loose or damaged wiring in the circuit
  3. Malfunctioning cruise control switch
  4. Defective cruise control module
  5. ECM failure

Symptoms of P0586

  1. Inability to engage or maintain cruise control
  2. Erratic speed fluctuations while driving
  3. Decreased fuel efficiency
  4. Rough idling or stalling when coming to a stop

How to Fix P0586

  1. Use a diagnostic scanner to retrieve the trouble codes and identify the specific issue related to the speed control vent control circuit.
  2. Inspect the wiring and connections in the circuit for any signs of damage or corrosion. Repair or replace any damaged components as needed.
  3. Test the cruise control switch and module for proper operation. Replace any faulty components.
  4. Clear the trouble codes from the ECM's memory and test the cruise control system to ensure proper functionality.
  5. If the issue persists, consult a professional mechanic for further diagnosis and repair.

Cost to Fix P0586

The cost of repairing the P0586 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the parts and labor for this repair may range from $100 to $300. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it's advisable to obtain a detailed estimate from a trusted mechanic before proceeding with the repair.

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Code P0586 Information for Specific Makes

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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