Computer Control

Cruise Control To PCM Schematic:

The PCM monitors this signal to determine if the vehicle is being operated in cruise control. If the cruise status signal indicates that cruise control is engaged while the PCM is commanding it to be disabled (Stepper Motor Cruise Control (SMCC) inhibited "YES" and SMCC status "engaged"), DTC P1550 will be stored, indicating a possible open or short to ground in CKT 85.