The P0587: Cruise Control Vent Control Circuit Low refers to an issue where the vent control circuit in the cruise control system is detecting a low voltage. This could be caused by a faulty vent control circuit, low voltage supply, or wiring issues, leading to malfunction of the cruise control system.
P0587 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0587: Cruise Control Vent Control Circuit Low |
| Is it serious? | No, but it can disable or prevent the proper function of the cruise control system. |
| Possible causes | – Faulty vent control circuit – Low voltage in circuit – Wiring issue |
| How to diagnose? | – Test vent control circuit for voltage – Inspect wiring and connectors – Test cruise control module |
P0587 Meaning
The P0587 code indicates that the cruise control system is detecting low voltage in the vent control circuit. This could be due to a malfunction in the vent control circuit itself, a low voltage supply, or damaged wiring. It may cause improper functioning or complete failure of the cruise control system.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional codes that might provide more insight into the issue. | OBD-II Scanner |
| Test the Vent Control Circuit | Use a multimeter to test the voltage in the vent control circuit and verify that it is within the correct range. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors related to the vent control circuit for signs of damage, loose connections, or corrosion. | Flashlight, Multimeter |
| Test the Cruise Control Module | Verify that the cruise control module is receiving and processing the signals from the vent control circuit correctly. | Diagnostic Tool, Multimeter |
| Clear the Code and Test | After completing repairs, clear the code using an OBD-II scanner and test the vehicle to confirm that the cruise control system is working properly. | OBD-II Scanner, Vehicle Manual |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko