P0588 Cruise Control Vent Control Circuit High

Definition: The OBD-II code P0588 indicates a problem with the cruise control vent control circuit, specifically that the voltage is higher than expected. This can be due to issues such as a faulty cruise control switch, wiring problems, or a malfunctioning control module.

p0588 – Cruise Control Vent Control Circuit High

Typical Severity: Moderate

Common Causes

p0588 – Cruise Control Vent Control Circuit High

Common causes:

• Faulty cruise control vent control solenoid
• Short circuit or open circuit in the wiring for the cruise control vent control circuit
• Corrosion or poor connections in the cruise control vent control circuit
• Defective cruise control switch
• Issues with the cruise control module

Common Misdiagnosis

OBD2 Code: P0588

Description: Cruise Control Vent Control Circuit High

Common Misdiagnosis: Replacing the cruise control switch or module without checking for wiring issues or connector problems.

Common Diagnostic Steps

OBD2 Code: P0588

Description: Cruise Control Vent Control Circuit High

• Check the cruise control system fuse and replace if necessary.
• Inspect the wiring and connectors for damage or corrosion in the cruise control vent control circuit.
• Test the cruise control vent solenoid for proper operation using a multimeter.
• Verify that there is no vacuum leak in the cruise control system.
• Examine the cruise control switch for faults or wear.
• Use an OBD2 scanner to clear the code and test drive to see if it returns.