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Code P0587

Quick reference

P0587 at a glance

Plain-language meaning
This code means that the car's computer has detected a problem with the cruise control system. Specifically, it thinks there's an issue with the part that helps control the speed of the car by venting air.
Urgency
Moderate – While the vehicle can still be driven, the cruise control system may not function properly, which can be inconvenient on long trips.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
Multimeter, OBD-II scanner, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer has detected a problem with the cruise control system. Specifically, it thinks there's an issue with the part that helps control the speed of the car by venting air.

Explanation

The P0587 code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the cruise control vent control circuit.

Technical description

The cruise control system uses various sensors and actuators to maintain a set speed. The vent control circuit is part of the actuator system that adjusts the throttle position. A low voltage in this circuit indicates a potential electrical issue, such as a poor connection or a failing component.

Symptoms

• Cruise control not engaging

• Cruise control disengaging unexpectedly

• Check engine light illuminated

Common Causes

• Faulty cruise control vent control solenoid

• Damaged or corroded wiring or connectors

• Blown fuse in the cruise control circuit

Glossary

ECM: Engine Control Module

Solenoid: An electromechanical device that converts electrical energy into mechanical movement

Diagnosis steps

• Check for any blown fuses related to the cruise control system.

• Inspect the wiring and connectors for damage or corrosion.

• Test the cruise control vent control solenoid for proper operation.

Repair procedures

• Replace any blown fuses.

• Repair or replace damaged wiring or connectors.

• Replace the cruise control vent control solenoid if faulty.

Tools required

• Multimeter

• OBD-II scanner

• Basic hand tools

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect and maintain electrical connections.

• Avoid exposure of electrical components to moisture.

• Use quality replacement parts for repairs.

Error code type

Sensor Issue

User experience recommendations

• Do not use cruise control until the issue is resolved.

• Consult a professional mechanic for accurate diagnosis.

Warranty information

Check with your vehicle manufacturer or dealership for specific warranty coverage related to cruise control components.

Historical data

This code has been historically associated with electrical issues in the cruise control system, often due to wear and tear or environmental factors.

Urgency level

Moderate – While the vehicle can still be driven, the cruise control system may not function properly, which can be inconvenient on long trips.

Testing conditions

• Vehicle must be in a safe location to test cruise control.

• Ensure battery voltage is within normal range.

Component location

The cruise control vent control solenoid is typically located near the throttle body or within the engine bay.

FAQs

Q: Can I drive my car with a P0587 code?
A: Yes, but the cruise control may not work properly, which can be inconvenient.

Q: How do I reset the check engine light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.

Optional diagnostic gear

Tools that may help diagnose P0587

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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