What does P0587 mean?

This code indicates a low voltage condition in the cruise control vent control circuit. The signal is weaker than expected, possibly due to a short to ground.

• Short to ground in the circuit
• Faulty vent control solenoid
• Wiring damage

Click steps to track your progress.

1. 1

   Inspect wiring for any signs of grounding.

2. 2

   Test the vent control solenoid for shorts to ground.

3. 3

   Verify all connections are clean and tight.

4. 4

   A professional diagnosis may be needed if the fault persists.