Scan Tool Data Definitions - BCM

Battery Volts: The scan tool displays 0-16.0 Volts. The battery voltage represents the system voltage measured at the BCM ignition feed input.

Ignition 1: The scan tool displays ON or OFF. When the BCM detects ignition 1 is present, the scan tool will display Yes. When the BCM does not detect ignition 1, the scan tool will display OFF. This ignition switch information is sent on the serial data line to systems that relay on this information to preform certain functions (RAP, wake-up, etc.).

Ignition 2: The scan tool displays ON or OFF. When the BCM detects ignition 2 is present, the scan tool will display Yes. When the BCM does not detect ignition 2, the scan tool will display OFF. This ignition switch information is sent on the serial data line to systems that relay on this information to preform certain functions (RAP, wake-up, etc.).

Ignition 3: The scan tool displays ON or OFF. When the BCM detects ignition 3 is present, the scan tool will display Yes. When the BCM does not detect ignition 3, the scan tool will display OFF. This ignition switch information is sent on the serial data line to systems that relay on this information to preform certain functions (RAP, wake-up, etc.).

Key In Ignition: The scan tool displays Active or Inactive. When the BCM detects the key is IN the ignition switch, the scan tool will display Active. When the key is removed from the ignition switch, the scan tool will display Inactive.

Key Out Ignition: The scan tool displays Active or Inactive. When the BCM detects the key is OUT of the ignition switch, the scan tool will display Active. When the key is IN the ignition switch, the scan tool will display Inactive.

Current Power Mode: The scan tool displays the current power mode. The BCM determines ignition switch position from it's ignition inputs. This ignition switch information is sent on the serial data line to systems that relay on this information to preform certain functions (RAP, wake-up, etc.).

Inadvertent Load Monitor: The scan tool displays Active or Inactive. When the BCM energizes the inadvertent load monitor relay, the scan tool will display Active. When the BCM de-energizes the inadvertent load monitor relay, the scan tool will display Inactive. The inadvertent load monitor system is used for battery run down protection. The BCM removes battery voltage to accessories that were left on by de-energizing the monitored load relay.

Theft Deterrent State: The scan tool displays the current theft deterrent state. This data represents what theft deterrent functional mode the BCM is in. The BCM enters different states based upon information received from various inputs associated with the theft deterrent system.

Pass-Key(R) State: The scan tool displays the current PASS-Key(R) state. This data represents what PASS-Key(R) functional mode the BCM is in. The BCM enters different PASS-Key(R) states based upon the information the BCM receives from the ignition switch (switch position and key resistance value).