P0590 - Cruise Control Multi-Function Input B Circuit Stuck

What does P0590 mean?

This code indicates that the cruise control multi-function input 'B' circuit is stuck in one position. It is not responding to changes.

• Sticking multi-function switch
• Debris interfering with the switch
• Electrical fault in the circuit

Click steps to track your progress.

1. 1

   Ensure the multi-function switch is clean and free to move.

2. 2

   Check for any obstructions around the switch.

3. 3

   Test the electrical signal from input B for consistent changes.

4. 4

   Contact a service professional for detailed diagnosis.