Code Definition

P0587 — Cruise control vent solenoid circuit low

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

About P0587

P0587 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 P0587 is stored, the module has detected a signal or supply voltage lower 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 P0587 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 indicates that the engine control module (ECM) or the body control module (BCM) has detected a lower than expected voltage in the cruise control vent solenoid circuit. The cruise control vent solenoid is an important component in vehicles with vacuum-controlled cruise control systems, and it is responsible for managing the vacuum to the cruise control actuator. A low voltage condition in this circuit might suggest a partial short to ground or an electrical issue that is reducing the solenoid's operating voltage, potentially affecting its ability to properly regulate the cruise ...

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