ECM Inhibits

The ECM inhibits the ACC System operation when any of the following conditions exists:

• The ACC inhibited signal from DSCC is present.
• The vehicle speed is at or less than 40 km/h (25 mph).
• The vehicle speed is greater than 193.1 km/h (120 mph).
• Automatic braking failure-a serial data message from EBCM to the ECM indicating an automatic braking failure
• The ACC present signal from the BCM is false.
• The driver applied brake pressure.
• A cruise control switch failure is present.
• The park brake switch signal from the BCM is active.
• A Throttle Actuator Control (TAC) System failure is present.
• The Traction Control System (TCS) is active.
• The ABS is active.
• The engine speed protection is active.
• The vehicle speed protection is active.
• The engine speed is too high or too low.
• The automatic transmission is in first gear, Park, Neutral or Reverse.
• The initial brake pedal travel signal from the BPP sensor is not present.
• The system voltage is too low.