Body Control Module Scan Tool Data Parameters

Use the scan tool data display values and definitions information in order to assist in diagnosing vehicle malfunctions. Compare the vehicles actual scan tool data with the typical data display value table information. Use the information in order to aid in understanding the nature of the concern when the vehicle data does not match the typical data display values.

The scan tool data values were taken from a known good vehicle under the following conditions:

The ignition switch is in the Run position.
The engine is not running.
The vehicle is in PARK.

Parameter	Operating Conditions	Expected Value	Definition
Operating Conditions: Ignition is ON, engine OFF, and vehicle is stationary.
Accy/RAP Relay Command	Acc./RAP relay switch activated	On	The scan tool displays On or Off. This is the state of the Accy/RAP relay.
Accy/RAP Relay Command	Acc./RAP relay switch deactivated	Off
All Door Lock Command	All door lock switch activated	On	The scan tool displays On or Off. This is the state of the all door lock switch.
All Door Lock Command	All door lock switch deactivated	Off
Ambient Light Sensor	-	Volts	The scan tool displays the ambient light level as detected by the sensor as a voltage.
Ambient Light Status	-	Night	The scan tool displays Night, Day, Unknown or Invalid. This is the state of the ambient light sensor.
	-	Day
	-	Unknown
	-	Invalid
Auto Headlamp Disable Switch	Auto headlamp disable switch activated	Active	This parameter displays the status of the auto headlamp disable switch.
Auto Headlamp Disable Switch	Auto headlamp disable switch idle position	Inactive
Backup Lamps	-	On	The scan tool displays On or Off. This is the state of the backup lamps.
Backup Lamps	-	Off
Battery Current	-	amps	The scan tool displays amperes. This numeric value is the battery amperage.
Battery Low at Start Up	Battery voltage below 11 Volts	Yes	The scan tool displays Yes if the voltage is below 11 Volts. Or No if the voltage is above 12 Volts.
Battery Low at Start Up	Battery voltage above 12 Volts	No
Battery Open Circuit Voltage	-	12 Volts	This parameter displays the Voltage of the battery open charge.
Battery Open Circuit Tested	Battery circuit open	Yes	The scan tool displays Yes or No. Yes is displayed if the BCM senses an open battery circuit.
Battery Open Circuit Tested	Battery circuit closed	No
Battery Sulfation Mode	-	Active	The scan tool displays Active or Inactive. This is the state of the battery sulfation mode.
Battery Sulfation Mode	-	Inactive
Battery Voltage	-	12 Volts	The scan tool displays 0-14 Volts. The scan tool displays approximately 12 Volts when the ignition is on.
Battery Voltage	-	Normal	This displays Normal or Out of Range. This is the current state of the system voltage.
Battery Voltage	-	Out of Range
Battery Voltage High Resolution	-	12 Volts	The scan tool displays 0-14 Volts. The scan tool displays approximately 12 Volts when the ignition is on.
BPPS High During Learn	-	Yes	The scan tool displays Yes or No. Yes is displayed if the BPPS was high during BPP calibration.
BPPS High During Learn	-	No
BPPS Learned Home Position	-	Counts	The scan tool displays Counts. This numeric value is the BPPS learned home position.
BPPS Low During Learn	-	Yes	The scan tool displays Yes or No. Yes is displayed if the BPPS was low during BPP calibration.
BPPS Low During Learn	-	No
BPPS Move During Learn	-	Yes	The scan tool displays Yes or No. Yes is displayed if the BPPS was moved during BPP calibration.
BPPS Move During Learn	-	No
BPP Sensor	-	Counts	This displays Counts. This numeric value is the current brake pedal position.
BPP Sensor Reference	-	Counts	The scan tool displays Counts. This numeric value is the BPP Sensor reference.
BPPS Status (Brake Pedal)	-	Invalid	The scan tool displays Invalid, Learned, Learned and Invalid, Undecided and Learning. This is the state of the BPPS calibration in the BCM.
	-	Learned
	-	Learned and Invalid
	-	Undecided
	-	Learning
Brake Applied Output Signal	-	On	The scan tool displays On or Off. This is the state of the brake applied output signal.
Brake Applied Output Signal	-	Off
BTSI Fault	-	Present	The scan tool displays Present or Not Present. Present is displayed if the BCM senses a brake transmission shift interlock (BTSI) fault.
BTSI Fault	-	Not Present
Calculated Brake Pedal Position	-	Counts	This displays Counts. This numeric value is the current brake pedal position.
Content Theft Mode	-	True	The scan tool displays True or False. This is the mode of the content theft system.
Content Theft Mode	-	False
Courtesy Lamp Activation Reason	-	Off	This parameter displays the interior lamp activation reason.
	-	Panic
	-	Manual
	-	Air Bag
	-	Door Open
	-	RFA
	-	RFA Theft
	-	Door Closed
	-	Exit
	-	Manual Defeat
Courtesy Lamp PWM Command	-	%	This displays percent. This is the current dimming percentage of the courtesy lamps.
Crank Abort	-	True	The scan tool displays True or False. This is the state of the crank abort.
Crank Abort	-	False
Cruise Control Switch	-	On	The scan tool displays On, Off, Switched Off, Switched On, Resume, Set, Error or Cancel. This is the current state of the cruise control switch.
	-	Off
	Cruise control switched Off	Switched Off
	Cruise control switched On	Switched On
	Resume/Accel cruise button pressed	Resume
	Set/Decel cruise button pressed	Set
	-	Error
	Brake pedal applied	Cancel
Content Theft Deterrent (CTD) Status	-	Armed	The scan tool displays Disarmed, Armed, Arm Delay or Alarm Active. This is the state of the content theft deterrent (CTD) system.
	-	Disarmed
	-	Arm Delay
	-	Alarm Active
Current CTD Trigger	No Anti Theft Warnings	None	The scan tool displays None, Driver Door, Passenger Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Inclination, Remote, Battery Reconnect, Power Mode or Tamper. These parameters are the possible current content theft deterrent.
	-	Driver Door
	-	Passenger Door
	-	LR Door
	-	RR Door
	-	Rear Closure
	-	Mid Closure
	-	Tonneau
	-	Hood
	-	Ignition
	-	Intrusion
	-	Inclination
	-	Remote
	-	Battery Reconnect
	-	Power Mode
	-	Tamper
	-	Glass Break
Current Power Mode	Ignition is in OFF position	Off	This parameter displays Off/Accessory/Run/Crank. This is the status of the current power mode dependent on the ignition position.
	Ignition is in ACC position	Accessory
	Ignition is in RUN position	Run
	Ignition is in CRANK position	Crank Request
Desired Battery Voltage	-	12 Volts	The scan tool displays 0-14 Volts. The scan tool displays approximately 12 Volts when the ignition is on.
Dimming Control Reference	-	Volts	This displays Volts. This is the dimming control reference voltage.
Dimming Control Signal	-	%	This displays percent. This is the dimming control percentage.
Dimming Control Signal	-	Volts	This is the dimming control signal voltage.
Door Key Cylinder Unlock Switch	Door key cylinder in the unlock position	Active	The scan tool displays Active or Inactive. This is the state of the door key cylinder unlock switch.
Door Key Cylinder Unlock Switch	Door key cylinder in the idle position	Inactive
Door Lock Requester	Centre console door lock button pressed	Power lock	The scan tool displays Power Lock, Door Key Cyl. Keyless Entry, Rear Closure, Emergency, Passive Keyless, Remote, Delayed Lock, Relocking, Anti-Lockout, Exterior Sw., or Auto Locks. This is the current state of the door lock request as monitored by the BCM.
	Door locked by key in door lock cylinder	Door Key Cyl.
	-	Rear Closure
	-	Emergency
	Remote key door lock button pressed	Keyless Entry
	-	Passive Keyless
	-	Remote
	-	Delayed Lock
	-	Relocking
	-	Anti-Lockout
	-	Exterior Sw.
	Key removed from ignition	Auto locks
Driver Door Lock Switch	-	Active	The scan tool displays Active or Inactive. This is the state of the driver door lock switch.
Driver Door Lock Switch	-	Inactive
Driver Door Open Switch	-	Open	The scan tool displays Open or Closed. This is the state of the driver door open switch.
Driver Door Open Switch	-	Closed
Driver Door Unlock Command	Driver door unlock switch activated	On	The scan tool displays On or Off. This is the state of the driver door unlock switch.
Driver Door Unlock Command	Driver door unlock switch deactivated	Off
Driver Door Unlock Switch	-	Active	The scan tool displays Active or Inactive. This is the state of the driver door unlock switch.
Driver Door Unlock Switch	-	Inactive
Driver Identification	Driver key 1/2/3/4/5/6/7 in ignition	Unknown	This parameter identifies the current key in the ignition.
Driver Identification	Driver key 1/2/3/4/5/6/7 in ignition	Driver 1-7	This parameter identifies the current key in the ignition.
Drivers Door Ajar Switch	With door open	Door Ajar	The scan tool displays the current status of the drivers door ajar switch.
Drivers Door Ajar Switch	With door closed	Door Closed
Daytime Running Lamp (DRL) Relay Command	-	On	The scan tool displays On or Off. This is the state of the daytime running lamp (DRL) relay.
Daytime Running Lamp (DRL) Relay Command	-	Off
Estimated Battery Temperature	-	12 °C	This parameter displays the current temperature of the battery.
Flash to Pass Switch	Flash to pass switch activated	Active	The scan tool displays Active or Inactive. This is the state of the flash to pass switch.
Flash to Pass Switch	Flash to pass switch in idle position	Inactive
Fog Lamp Front Relay Command	Front fog lamps activated	On	This parameter displays On, when you activate the front fog lamp switch.
Fog Lamp Front Relay Command	Front fog lamps deactivated	Off
Front Fog Lamp Switch	Front fog lamp switch activated	Active	This parameter displays if the front fog lamp switch is Active or Inactive. This determines whether the switch is receiving voltage.
Front Fog Lamp Switch	Front fog lamp switch deactivated	Inactive
Fuel Economy Mode	-	Active	If the battery is over 80% charged the BCM may reduce regulated voltage to as low as 12.8 volts.
Fuel Economy Mode	-	Inactive
Hazard Lamp Switch	-	Active	The scan tool displays Active or Inactive. This is the state of the hazard lamp switch.
Hazard Lamp Switch	-	Inactive
Headlamp Switch	Headlamp switch activated	Active	The scan tool displays Active or Inactive. This is the state of the Headlamp Switch.
Headlamp Switch	Headlamp switch deactivated	Inactive
High Beam Relay Command	High beam activated	On	The scan tool displays if the high beam lamps are On or Off.
High Beam Relay Command	High beam deactivated	Off
High Beam Select Switch	High beam switch activated	Active	This parameter displays if the high beam switch has been activated or not activated.
High Beam Select Switch	High beam switch deactivated	Inactive
Hood Ajar Switch	With hood ajar/open	Ajar	The scan tool displays Ajar or Closed. This is the state of the hood ajar switch.
Hood Ajar Switch	With hood closed	Closed
Hood Closed Switch	Hood closed	Active	This parameter displays the status of the hood closed switch.
Hood Closed Switch	Hood open	Inactive
Hood Open Switch	Hood open	Active	The scan tool displays Active or Inactive. This is the state of the hood open switch.
Hood Open Switch	Hood closed	Inactive
Hood Switch Fault	-	Present	The scan tool displays Present or Not Present. Present is displayed if the BCM senses a hood switch fault.
Hood Switch Fault	-	Not Present
Horn Relay Command	Horn Pressed	On	The scan tool displays On or Off. This is the state of the horn relay.
Horn Relay Command	Horn in idle position	Off
HS Communication Command	HS communication activated	On	The scan tool displays On or Off. This is the state of the high speed communications command of the BCM.
HS Communication Command	HS communication deactivated	Off
Idle Boost Level 2 Counter	-	0 Counts	The scan tool displays Counts. This is the number of level 2 idle boosts
Idle Boost Level 3 Counter	-	0 Counts	The scan tool displays Counts. This is the number of level 3 idle boosts
Ignition Accessory/Run	Ignition is in ACC/RUN position	Active	The scan tool displays Active or Inactive. This is the state of the ignition Accessory/Run.
Ignition Accessory/Run	Ignition is in OFF position	Inactive
Ignition Off/Run/Crank	Ignition is in OFF position	Key In/Off	This parameter displays the current status of the ignition Off/Run/Crank.
	Ignition is in ACC position	Key Out/Acc
	Ignition is in RUN position	Run
	Ignition is in CRANK position	Crank
Ignition Run/Crank	Ignition is in RUN/CRANK position	Active	The scan tool displays Active or Inactive. This is the state of the ignition Run/Crank.
Ignition Run/Crank	Ignition is in OFF/ACC position	Inactive
Ignition Switch Faults	-	Yes	The scan tool displays Yes or No. Yes is displayed if the BCM senses an ignition switch fault.
Ignition Switch Faults	-	No
Incandescent Dimming PWM Command	0-100	%	This scan tool displays a percentage. This is the current incandescent dimming percentage.
Int. Trunk/Liftglass Switch	-	Active	The scan tool displays Active or Inactive. This is the state of the interior trunk or liftglass release switch.
Int. Trunk/Liftglass Switch	-	Inactive
Key Capture Solenoid Command	-	On	The scan tool displays On or Off. This is the state of the key capture solenoid.
Key Capture Solenoid Command	-	Off
Key In Ignition	Key in Ignition	Yes	The scan tool displays Yes or No. This is the state of the key in ignition.
Key In Ignition	Key not in ignition	No
Key In Ignition Status	Key in ignition	Key In	This parameter displays if the ignition key is in or out of the ignition barrel.
Key In Ignition Status	Key not in ignition	Key Out
LED Dimming PWM Command	0-100	%	The scan tool displays a percentage. This is the current LED dimming percentage.
LF Turn Signal	Left front turn signal activated	On	This parameter displays whether the left front turn signal is Active or Inactive.
LF Turn Signal	Left front turn signal deactivated	Off
LR Turn Signal	Left rear turn signal activated	On	This parameter displays whether the left rear turn signal is Active or Inactive.
LR Turn Signal	Left rear turn signal deactivated	Off
Left Turn Signal Switch	Left turn signal switch activated	Active	This parameter displays Active or Inactive. This is the status of the left turn signal switch.
Left Turn Signal Switch	Left turn signal switch in the idle position	Inactive
Load Shed Level 2 Counter	-	0 Counts	The scan tool displays Counts.
Load Shed Level 3 Counter	-	0 Counts	The scan tool displays Counts.
Low Beam Relay Command	Low beams activated	On	This parameter displays the status of the low beam headlamps.
Low Beam Relay Command	Low beams deactivated	Off
Off/Run/Crank Reference	-	5.4 Volts	The scan tool displays volts. This is the current Off/Run/Crank reference voltage.
Off/Run/Crank Signal	-	4.4 Volts	The scan tool displays volts. This is the current Off/Run/Crank signal voltage.
Parasitic Current	-	0 Amps	The scan tool displays amperes. This is the state of the parasitic draw on the battery.
Park Brake Switch	Park brake engaged	Applied	This parameter displays the current position of the park brake switch.
Park Brake Switch	Park brake disengaged	Released
Park Lamp Relay Command	-	On	The scan tool displays On or Off. This is the state of the park lamp relay.
Park Lamp Relay Command	-	Off
Park Lamp Switch	Park lamp switch activated	Active	This parameter displays the status of the park lamp switch.
Park Lamp Switch	Park lamp switch deactivated	Inactive	This parameter displays the status of the park lamp switch.
Passenger Door Ajar Switch	With door open	Door Ajar	The scan tool displays the current status of the passenger door ajar switch.
Passenger Door Ajar Switch	With door closed	Door Closed
Passenger Door Open Switch	-	Open	The scan tool displays Open or Closed. This is the state of the passenger door open switch.
Passenger Door Open Switch	-	Closed
Passenger Door(s) Unlock Command	Passenger door unlock switch activated	On	The scan tool displays On or Off. This is the state of the passenger doors unlock system.
Passenger Door(s) Unlock Command	Passenger door unlock switch deactivated	Off
Powertrain HS Communication	Powertrain HS communication activated	On	The scan tool displays Active or Inactive. This is the state of the powertrain high speed communications command.
Powertrain HS Communication	Powertrain HS communication deactivated	Off
Previous State of Charge	0-100	%	The scan tool displays a percentage. This was the previous state of charge of the battery at start up.
Rear Closure Ajar Switch	-	Active	The scan tool displays Active or Inactive. This is the state of the rear closure ajar switch.
Rear Closure Ajar Switch	-	Inactive
Regulator Setpoint	0-100	%	The scan tool displays a percentage. This is the set point of the voltage regulator.
Remaining Starts 0	-	True	The scan tool displays True or False. True is displayed if there are no remaining starts.
Remaining Starts 0	-	False
Remote Start Attempts 0	-	True	The scan tool displays True or False. True is displayed if there are no remote start attempts.
Remote Start Attempts 0	-	False
RF Turn Signal	Right front turn signal activated	On	This parameter displays the status of the right front turn signal.
RF Turn Signal	Right front turn signal deactivated	Off
RR Turn Signal	Right rear turn signal activated	On	This parameter displays the status of the right rear turn signal.
RR Turn Signal	Right rear turn signal deactivated	Off
Right Turn Signal Switch	Right turn signal switch activated	Active	This parameter displays the status of the right turn signal switch.
Right Turn Signal Switch	Right turn signal switch in idle position	Inactive
Run Abort	-	True	The scan tool displays True or False. True is displayed if a run abort was executed.
Run Abort	-	False
Run/Crank Relay Command	Ignition is in RUN/CRANK position	On	The scan tool displays On or Off. This is the state of the Run/Crank relay.
Run/Crank Relay Command	Ignition is in OFF/ACC position	Off
Shift Lock Solenoid Command	Shift lock solenoid activated	On	The scan tool displays On or Off. This is the state of the shift lock solenoid.
Shift Lock Solenoid Command	Shift lock solenoid deactivated	Off
Start Up State of Charge	0-100	%	The scan tool displays a percentage. This was the last state of charge of the battery at start up.
State of Charge	0-100	%	The scan tool displays a percentage. This is the current state of charge of the battery.
State of Charge Low	-	Yes	The scan tool displays Yes or No. Yes is displayed if the state of charge of the battery is low.
State of Charge Low	-	No
Stop Lamp Relay Command	-	On	The scan tool displays On or Off. This is the state of the stop lamp relay.
Stop Lamp Relay Command	-	Off
SWC Bank 1 Status	-	Idle	The scan tool displays Idle or Switch 1-10. This is the state of the steering wheel controls (SWC) bank 1.
SWC Bank 1 Status	-	Switch 1-10
Traction Control Switch	Traction control turned ON	Active	This parameter displays the status of the TC/ESP switch (traction control).
Traction Control Switch	Traction control turned OFF	Inactive
Theft LED	-	On	The scan tool displays on, flash slow, flash fast, or off. This is the current state of the content theft deterrent indicator.
	-	Flash Slow
	-	Flash Fast
	-	Off
Trunk Release Solenoid Command	Trunk release button pressed	On	The scan tool displays On and Off. This is the state of the trunk release solenoid relay.
Trunk Release Solenoid Command	Trunk release button not pressed	Off
Washer Relay Command	Washer relay command activated	On	The scan tool displays On or Off. This is the state of the washer relay.
Washer Relay Command	Washer relay command idle position	Off
Windshield Washer Switch	Windscreen washer switch activated	Active	This parameter displays the status of the windshield washer switch.
Windshield Washer Switch	Windscreen washer switch in idle position	Inactive
Windshield Wiper Switch	User dependent	Off	The scan tool displays Off, Intermittent, Low, High, or Switch Fault. This is the state of the windshield wiper switch.
		Intermittent
		Low
		High
	-	Switch Fault
Wiper Delay Setting	User dependent	1-5	The scan tool displays a numeric value. This is the wiper delay setting.
Wiper High Speed Relay Command	Wiper high speed relay activated	On	The scan tool displays On or Off. This is the state of the wiper high speed relay.
Wiper High Speed Relay Command	Wiper high speed relay deactivated	Off
Wiper High Speed Switch	Wiper high speed switch activated	Active	This parameter displays the status of the wiper high speed switch.
Wiper High Speed Switch	Wiper high speed switch deactivated	Inactive
Wiper Park Switch	Wiper park switch activated	Active	This parameter displays the status of the wiper park switch.
Wiper Park Switch	Wiper park switch in idle position	Inactive
Wiper Relay Command	Wiper relay activated	On	This parameter displays whether the wiper relay is receiving power. The wiper function is controlled via the BCM.
Wiper Relay Command	Wiper relay deactivated	Off

Body Control Module Scan Tool Output Controls

Scan Tool Output Control	Additional Menu Selection(s)	Description
Acc./RAP Relay	Miscellaneous Test	The scan tool commands the Acc./RAP relay On or Off.
Backup Lamps	Exterior Lighting	The scan tool commands the backup lamps On or Off.
Courtesy Lamp	Interior Lighting	The scan tool commands the PWM of the courtesy lamp. This is the current dimming percentage of the courtesy lamps.
Lock Rear Doors	Doors	The scan tool is used to command the rear doors to lock.
Unlock Rear Doors	Doors	The scan tool is used to command the rear doors to unlock.
Fog Lamps	Exterior Lighting	The scan tool is used to command the fog lamp On or Off.
High Beams	Exterior Lighting	The scan tool is used to command the High Beam On or Off.
Horn	Miscellaneous Test	The scan tool commands the horn On or Off.
LED Dimming	Interior Lighting	The scan tool commands the BCM for LED dimming from 0-100 percent by 20 percent increments.
Left Cornering Lamp	Exterior Lighting	The scan tool is used to command the left cornering lamp On or Off.
Incandescent Dimming	Interior Lighting	The scan tool commands the BCM for dimming Interior lighting from 0-100 percent by 20 percent increments.
LF Turn Signal	Exterior Lighting	The scan tool is used to command the left front turn signal On or Off.
LR Turn Signal	Exterior Lighting	The scan tool is used to command the left rear turn signal On or Off.
Low Beam	Exterior Lighting	The scan tool commands the low beam headlamps On or Off.
Parking Lamps	Exterior Lighting	The scan tool commands the park lamp relay On or Off.
RF Turn Signal	Exterior Lighting	The scan tool commands the right front turn signal On or Off.
RR Turn Signal	Exterior Lighting	The scan tool commands the right rear turn signal On or Off.
Right Cornering Lamp	Exterior Lighting	The scan tool is used to command the right cornering lamp On or Off.
Run/Crank Relay	Miscellaneous Test	The scan tool commands the Run/Crank relay On or Off.
Shift Lock Solenoid	Miscellaneous Test	The scan tool commands the shift lock solenoid On or Off.
Trunk Release	Miscellaneous Test	The scan tool commands the trunk release solenoid relay On and Off.
Wiper Washer Motor	Miscellaneous Test	The scan tool commands the washer relay On or Off.
Wiper High Speed Relay	Miscellaneous Test	The scan tool commands the wiper high speed relay On or Off.
Wiper Relay	Miscellaneous Test	The scan tool commands the wiper relay On or Off.