Conditions for Setting the DTC

B3794 08 

The BCM detects an invalid voltage signal on the cruise control switch signal circuit for 1 second.

B3794 61 

Stuck switch for either Resume/Accel or Set/Coast button for 60 seconds.

P0564, P0565, P0567, P0568, P056C

• The BCM detects an invalid voltage signal on the cruise control switch signal circuit for greater than 2 seconds and sends a serial data message to the ECM. The ECM sets these DTCs when the message is received.
• The ECM runs this diagnostic continuously.

P0580, P0581

• The ECM detects an invalid voltage signal on the cruise control switch signal circuit.
• The ECM runs this diagnostic continuously.

P0589, P0592, P0593

• The ECM detects and invalid voltage signal on the cruise control switch 2 signal circuit.
• The ECM runs this diagnostic continuously.

P155A 

The ECM is unable to determine the state of the cruise control switch.

P155B, P155C

• The ECM sets these DTCs when the associated cruise switch is active for greater than an allowed duration.
• The ECM runs this diagnostic continuously.