Circuit/System Description
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When the ignition is turned ON, the object alarm detection system performs tests to diagnose critical malfunctions within itself. When the object alarm detection system has completed the power-up mode, the object detection module will establish communication with the body control module (BCM). During the power-up mode the object detection module will check itself for a valid calibration data set, if no valid calibration set is found the object detection module will set a DTC and command the red parking indicator ON.