Scan Tool Data Definitions

WARNING: This page is about a different car, the 2004 Saturn Ion Red Line, 2004 Saturn Ion 3, 2004 Saturn Ion 2, and 2004 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.

Accessory: The scan tool displays On when the accessory relay is active.
A/C Switch: The scan tool displays No/Yes. The BCM displays Yes when it receives an input from the HVAC control head indicating an A/C request.
ALC Headlamp Relay: The scan tool displays On/Off. The scan tool indicates ON when DRLs are requested On.
ALC Light Sensor: The scan tool displays voltage. The BCM indicates the voltage from the solar sensor.
ALC Parklamp Relay: The scan tool displays On/Off. The scan tool indicates ON when DRLs are requested On.
Auto. Learn Timer: The scan tool displays the time in seconds used by the BCM to learn valid code from the Passlock™ sensor using the techline terminal reprogramming procedure.
Battery 1: The scan tool displays the vehicles battery voltage.
Brake Fluid Level: The scan tool displays Voltage. This input varies depending on Power Mode.
Brake Fluid Level Status: The scan tool displays Open Ckt/Normal. This BCM input displays whether brake fluid level is low (Open Ckt) or Normal.
BTSI (Brake Transmission Shift Interlock): The scan tool displays Unlocked/Locked. The BCM indicates whether the shifter unlock control circuit is Unlocked or Locked.
Chime State: The scan tool displays No Request/On/On Queued/Off Queued. The chime state is commanded by the IPC.
Coolant Level: The scan tool displays Low/Ok, depending on the amount of coolant that is in the vehicle.
CTD Security LED Request: The scan tool displays On/Off. The BCM indicates which LED status is active. The scan tool indicates OFF when the security LED is Off.
Day/Night Status: The scan tool displays Day/Night. The BCM determines whether the vehicle is under Day or Night conditions.
Decoded Switch State: The BCM interprets the voltage drop across the door lock switch and displays the decoded value as Lock/Unlock/Off.
Door Lock Switch: The scan tool displays Voltage. The BCM indicates varying voltage depending on lock switch status.
Driver Door Switch: The scan tool displays Open/Closed. The scan tool displays the current state of the drivers door ajar switch as either Open or Closed. When the driver door is open, the scan tool will display Closed.
Driver Door Unlock Fdbk.: The scan tool displays On/Off. When the BCM recognizes a request to UNLOCK the Drivers Door, the scan tool displays ON.
DRL Status: The scan tool displays the status of the daytime running lamps (DRL).
Fob ID: The scan tool displays Fob 1/Fob 2/None. The BCM displays which Fob last sent a request.
Fog Lamp Relay: The scan tool displays On/Off. The BCM indicates whether the Fog Lamp Relay is On or Off.
Fog Lamp Switch: The scan tool displays On/Off. This input displays ON when the Fog Lamps are ON.
High Beam Switch: The scan tool displays On/Off. This input displays ON when the High Beams are ON.
Horn Relay: The scan tool displays On/Off. The BCM indicates if it is commanding the horn relay On or Off.
Ignition Accessory: The scan tool displays Active when the ignition switch is in the Accessory or Run position.
Ignition Mode Switch: The scan tool displays the value of the Passlock™ data voltage, which is the signal at the Off/Run/Crank circuit of the ignition switch output and the BCM input.
Ignition Run/Crank: The scan tool displays High/Low. When the ignition switch is in the Run/Crank position, the scan tool shows High.
Inadvertent Power Cmd.: The scan tool displays On/Off. The BCM will indicate if it is commanding the inadvertent power On or Off.
Inadvertent Power Input: The scan tool displays On/Off. The BCM indicates if conditions for inadvertent power are On or Off.
Interior Lighting Cmd.: The scan tool displays the percentage. The BCM will indicate the percentage of interior light dimming.
Interior Lighting Relay: The scan tool displays On/Off. The BCM indicates whether the interior lighting relay On or Off.
I/P Dimmer Input: The scan tool displays the IPC dimmer input in volts.
I/P Dimmer Output: The scan tool displays the IPC dimmer output in percentage.
Key in Ignition: The scan tool displays Yes when the key is in the ignition.
Last Alarm Cause: The scan tool displays Default/Driver Door/Pass Door/Trunk/Power Mode for which area caused an alarm.
2nd to Last Alarm Cause: The scan tool displays Default/Driver Door/Pass Door/Trunk/Power Mode for which area caused an alarm.
3rd to Last Alarm Cause: The scan tool displays Default/Driver Door/Pass Door/Trunk/Power Mode for which area caused an alarm.
Last Chime Active: The scan tool displays Default/Driver Door/Pass Door/Trunk/Power Mode. The IPC stores the last chime active.
LF Turn Signal: The scan tool displays On/Off. The scan tool indicates if the left front turn signal is commanded On or Off.
Lock All Doors Fdbk.: The scan tool displays On/Off. When the BCM recognizes a command to LOCK all doors, the scan tool displays ON.
Lockout Timer Status: The scan tool displays Seconds, which indicates time remaining when in tamper mode. The timer starts when the ignition switch is turned to the ON position and the BCM receives a Passlock™ data voltage difference from the last learned voltage. The timer has a delay of 10 minutes and will stay active even if the ignition switch is cycled from the ON to the OFF position.
Low Beam Switch: The scan tool displays On/Off. This input displays ON when the Low Beams are ON.
LR turn Signal: The scan tool displays On/Off. The scan tool indicates if the left rear turn signal is commanded On or Off.
Park Brake Switch: The scan tool displays On/Off. The BCM receives an input from the park brake switch indicating On 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.
Pass Door Switches: The scan tool displays Open/Closed. The scan tool displays the current state of the passengers door ajar switch as either Closed or Open. When any door (other than driver) is open the scan tool will display Closed.
Passlock™ Data Voltage: The scan tool displays the voltage from the Passlock™ sensor to the BCM. The BCM determines if the voltage received is a valid or invalid code voltage.
Passlock™ Telltale: The scan tool displays On/Off. The BCM indicates if the Passlock™ lamp is illuminated on the instrument panel.
Power Mode: The scan tool displays Run when the ignition switch is in the Run position. Accessory displays when in the Accessory position. Accessory will also display when the vehicle is in the RAP power mode. The scan tool will indicate Crank during an engine crank condition. OFF will display when the ignition switch is in the OFF position, and after the RAP function has timed out or overridden by a door switch.
Rear Defog Relay Cmd: The scan tool displays On/Off. The BCM will indicate if it is commanding the rear defog relay On or Off.
Rear Defog Switch: The scan tool displays On/Off. The BCM receives an input from the HVAC control head indicating the rear defog system is turned ON.
RF Turn Signal: The scan tool displays On/Off. The scan tool indicates if the right front turn signal is commanded On or Off.
RKE Lock Button: The scan tool displays On/Off, depending on which Fob last transmitted a LOCK request.
RKE Low Battery: The scan tool displays Yes/No, depending on which Fob has low transmitting power.
RKE Panic Button: The scan tool displays On/Off, depending on which Fob last transmitted a PANIC request.
RKE Trunk Button: The scan tool displays On/Off, depending on which Fob last transmitted a TRUNK release request.
RKE Unlock Button: The scan tool displays On/Off, depending on which Fob last transmitted an UNLOCK request.
RR Turn Signal: The scan tool displays On/Off. The scan tool indicates if the right rear turn signal is commanded On or Off.
Run/Crank Relay Command: The scan tool displays On when the Run/Crank relay is active.
Security LED: The scan tool displays On/Off/Flash as commanded by the BCM.
Seed and KEY Timer: The scan tool displays seconds, in which the BCM learns a valid code from the Passlock™ sensor. The learn procedure consists of 3 consecutive periods.
Theft Previously Alarmed: The scan tool displays Yes/No. The scan tool indicates whether the theft system sounded its alarm.
Theft System Status: The scan tool displays Disabled/Disarmed/Pre Arm/Armed/Pre Alarm/Alarm/Passive Arm. The scan tool indicates the current state of theft system readiness.
Traction Switch: The scan tool displays On/Off. The BCM will indicate if it is commanding the traction LED On or Off.
Traction Switch LED: The scan tool displays On/Off. This input to the BCM displays the state of the traction LED feedback circuit. ON indicates the BCM is providing a ground for the traction LED.
Trunk Release: The scan tool displays On/Off. This input displays ON when the trunk release switch is activated.
Turn/Hazard Input: The scan tool displays On/Off. The scan tool indicates if the right front turn signal is requested On or Off.
Unlock All Doors Fdbk.: The scan tool displays On/Off. When the BCM recognizes a request to UNLOCK all doors, the scan tool indicates ON.
VIN Number: The scan tool displays the vehicle identification number.
Washer Switch: The scan tool displays On/Off. The scan tool displays ON when the windshield washers are requested.
Wiper Ground: The scan tool displays On/Off. The BCM displays whether the ground circuit for the windshield wipers is requested.
Wiper Park Switch: The scan tool displays On/Off. The BCM indicates wiper park switch input.
Wiper Relay Cmd.: The scan tool displays On/Off. The BCM displays the state of the relay as commanded.
Wiper Switch: The scan tool displays Voltage. The BCM indicates voltage depending on windshield wiper switch position.
Wiper Switch State: The scan tool displays On/Off. The scan tool indicates ON with windshield wiper operation.