P0588 Fault Code

Cruise Control Vent Control Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

Cruise Control Vent Control Circuit High indicates an issue within the cruise control system related to the vent control circuit. This fault code suggests that there is a high voltage signal being detected in the cruise control's vent control circuit, which can affect the proper functioning of the cruise control system. It is crucial for maintaining vehicle speed according to driver settings.

What are the symptoms of the P0588 code?

Drivers may notice that the cruise control does not engage properly or may disengage unexpectedly. Other potential symptoms include:

• Erratic speed control behavior.
• Warning lights on the dashboard related to the cruise control system.
• Difficulty modulating the speed setting.

What causes the P0588 code?

The high voltage in the cruise control vent control circuit can result from several factors:

• Faulty sensors or harnesses within the cruise control system.
• Short circuits or open circuits that cause irregular voltage levels.
• Wiring issues such as frayed or damaged wires that influence the electrical readings.
• Issues with the cruise control module itself that may cause erroneous readings.

How to fix P0588?

To address the Cruise Control Vent Control Circuit High issue, the following steps can be taken:

• Inspect and test the wiring and connectors related to the cruise control system for any signs of damage or corrosion.
• Check the cruise control module and sensors for proper functionality.
• Repair or replace any faulty components detected during inspection.
• Clear the fault codes from the vehicle's computer after repairs to ensure that the system resets and any residual codes are eliminated.