Code Definition

P0588 — Cruise control vent solenoid circuit high

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0588

P0588 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0588 is stored, the module has detected a signal or supply voltage higher than the expected operating range.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0588 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

This fault code is logged when the engine control module (ECM) or the body control module (BCM) detects a higher than normal voltage in the cruise control vent solenoid circuit. The cruise control vent solenoid is a key component in vehicles with vacuum-controlled cruise systems, regulating the vacuum supply to the cruise control actuator. A high voltage condition in this circuit could indicate an electrical issue such as an open circuit or poor grounding, which might impair the solenoid's ability to properly manage the vacuum levels, potentially leading to malfunctions in the cruise control o...

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