Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONSA/C Request (Manual A/C): The scan tool displays Yes/No. The BCM receives an input from the HVAC control head indicating Yes when A/C is requested.
A/C Sensor: The scan tool displays voltage. The body control module displays the voltage from the EVAP temperature sensor.
Afterblow Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the afterblow relay On or Off.
Afterblow Relay Fdbk.: The scan tool displays High/Low. The BCM indicates whether the afterblow relay control circuit is High or Low.
Auto-Learn Timer: The scan tool displays the time in seconds used by the BCM to learn valid code from the Passlock(TM) sensor using the techline terminal reprogramming procedure.
Battery 1: The scan tool displays 0-25.5 volts. The state of the battery voltage supplied to the body control module.
Coolant Gauge Position: The scan tool displays the % of Gauge. The amount of coolant that is in the vehicle.
Dome Lamp Cmd.: The scan tool displays On/Off. The BCM will indicate if it is commanding the dome lamp On or Off.
Dome Lamp Fdbk.: The scan tool displays High/Low. The BCM indicates whether the dome lamp control circuit is High or Low.
Driver Door Switch:The scan tool displays the current state of the drivers door ajar switch as either High or Low. When the driver door is open the scan tool will display Low.
Driver Unlock Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the driver unlock relay On or Off.
Driver Unlock Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the driver unlock relay feedback circuit. High is displayed when the BCM is providing battery voltage to the driver lock actuator unlock control circuit.
DRL Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the DRL relay On or Off.
DRL Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the DRL relay feedback circuit. Low is displayed when the BCM is providing a ground to the DRL relay control circuit.
Fog Lamp Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the fog lamp relay On or Off.
Fog Lamp Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the fog lamp relay feedback circuit. Low is displayed when the BCM is providing a ground to the fog lamp relay control circuit.
Fog Lamp Switch: The scan tool displays On/Off. This input displays On when the fog lamps are on.
Front Washer Motor Input: The scan tool displays On/Off. This input displays On when the front washer spray is on.
Front Wiper Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the front wiper relay On or Off.
Front Wiper Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the front wiper relay feedback circuit. Low is displayed when the BCM is providing a ground to the front wiper relay control circuit.
Front Wiper Switch: The scan tool displays On/Off. This input displays On when the front wipers are on.
Fuel Gauge Position: The scan tool displays the % of Full. The amount of fuel that is in the gas tank.
High Beam Switch: The scan tool displays On/Off. This input displays On when the high beams are on.
Horn Relay Cmd.: The scan tool displays On/Off. the body control module will indicate if it is commanding the horn relay On or Off.
Horn Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the horn relay feedback circuit. Low is displayed when the BCM is providing a ground to the horn relay control circuit.
I/P Dimmer Input: The scan tool displays volts. The BCM indicates the voltage from the dimmer switch.
I/P Dimmer Output: The scan tool displays the % duty cycle. The BCM will indicate 0-100% of the dimmer switch duty cycle.
Ignition 1 Input: The scan tool displays High/Low. The state of the ignition 1 input to the body control module.
Ignition 2 Input: The scan tool displays High/Low. The state of the ignition 2 input to the body control module.
Inadvertent Power Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the inadvertent power to the interior lamps.
Inadvertent Power Fdbk.: The scan tool displays High/Low. The BCM indicates whether the inadvertent power control circuit is High or Low.
Key In Ignition: The scan tool displays Yes/No. The BCM receives an input from the ignition switch indicating whether the key is in the ignition or not, with Yes meaning the key is in the ignition.
Key Learned: The scan tool displays Yes/No. The body control module will indicate if the ignition key has been learned.
Key Learn Enabled: The scan tool displays Yes/No. The body control module will indicate if it is enabled to learn the ignition key.
Liftgate Ajar Switch: The scan tool displays the current state of the liftgate ajar switch as either High or Low. When the liftgate is open the scan tool will display Low.
Lock All Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the lock all relay On or Off.
Lock All Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the door lock relay feedback circuit. High is displayed when the BCM is providing battery voltage to the door lock actuator lock control circuit.
Lock Switch: The scan tool displays On/Off. This input to the BCM displays the state of the lock switch.
Low Beam Input: The scan tool displays volts. This input displays the voltage supplied to the body control module.
Low Beam Input = Off: The scan tool displays Yes/No. This input to the body control module displays the state of the low beam input.
Low Beam Input = DRL: The scan tool displays Yes/No. This input to the body control module displays the state of the low beam input.
Low Beam Input = High: The scan tool displays Yes/No. This input to the body control module displays the state of the low beam input.
Low Brake Fluid: The scan tool displays Yes/No. The BCM receives an input from the low brake fluid switch indicating Yes when the switch is closed, low brake fluid.
Low Coolant: The scan tool displays Yes/No. The BCM receives an input from the low coolant switch indicating Yes when the switch is open, low coolant.
Odometer: The scan tool displays km/miles. The body control module receives a class 2 message from the ECM. The BCM stores this information and displays it on the scan tool.
Oil Life Reset Switch: The scan tool displays High/Low. The BCM receives an input from the oil life reset switch (in the underhood fuse block) indicating Low when the engine oil needs to be changed.
Park Brake Switch: The scan tool displays High/Low. The BCM receives an input from the park brake switch indicating Low when the switch is closed, park brake applied.
Park Lamp Switch: The scan tool displays On/Off. This input displays On when the park lamps are on.
Passlock Input: The scan tool displays the voltage from the Passlock(TM) sensor to the BCM. The BCM determines if the voltage received is a valid or invalid code voltage.
Passlock Power Fdbk.: The scan tool displays High/Low. The state of the Passlock(TM) system power feedback to the body control module.
Passlock Timer: The scan tool displays the time in seconds used by the BCM to learn a valid code from the Passlock(TM) sensor. The learn procedure consists of 3 consecutive periods.
Psgr. Door Switches: The scan tool displays the current state of the passengers door ajar switch as either High or Low. When any door (other than driver) is open the scan tool will display Low.
Psgr. Unlock Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the psgr. unlock relay On or Off.
Psgr. Unlock Relay Fdbk.: The scan tool displays High/Low. This input displays the state of the to the passenger unlock relay feedback circuit. High is displayed when the BCM is providing battery voltage to the passenger lock actuator unlock control circuit
Rear Defog Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the rear defog relay On or Off.
Rear Defog Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the rear defog relay feedback circuit. Low is displayed when the BCM is providing a ground to the rear defog relay control circuit.
Rear Defog Switch: The scan tool displays On/Off. The BCM receives an input from the HVAC control head indicating On when the rear defog system is turned On.
Rear Washer Motor Input: The scan tool displays On/Off. This input displays On when the rear washer spray is on.
Rear Wiper Relay Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the rear wiper relay On or Off.
Rear Wiper Relay Fdbk.: The scan tool displays High/Low. This input to the BCM displays the state of the rear wiper relay feedback circuit. Low is displayed when the BCM is providing a ground to the rear wiper relay control circuit.
Rear Wiper Switch: The scan tool displays On/Off. This input displays On when the rear wipers are on.
Remote Lock Cmd.: The scan tool displays the current state of the lock button on the key fob that is being operated as Yes/No.
Remote Panic Cmd.: The scan tool displays the current state of the panic button on the key fob that is being operated as Yes/No.
Remote Programmed: The scan tool displays Yes/No. The current state of the key fob either being programmed or not.
Remote Unlock Cmd.: The scan tool displays the current state of the unlock button on the key fob that is being operated as Yes/No.
Security LED: The scan tool displays the state of the body control module (BCM) commanding the SECURITY lamp. The scan tool displays ON, OFF or FLASH, as commanded by the BCM.
Shifter Unlock Cmd.: The scan tool displays On/Off. The body control module will indicate if it is commanding the shifter unlock On or Off.
Shifter Unlock Fdbk.: The scan tool displays High/Low. The BCM indicates whether the shifter unlock control circuit is High or Low.
Unlock Switch: The scan tool displays On/Off. This input to the BCM displays the state of the unlock switch.
Wiper Delay 1: The scan tool displays Yes/No. This input to the body control module displays the state of the wiper delay switch.
Wiper Delay 2: The scan tool displays Yes/No. This input to the body control module displays the state of the wiper delay switch.
Wiper Delay 3: The scan tool displays Yes/No. This input to the body control module displays the state of the wiper delay switch.
Wiper Delay Input: The scan tool displays volts. This input displays the voltage supplied to the body control module.