For 1990-2009 cars

Table 1: | Body Control Module Scan Tool Data Parameters
Table 2: | Body Control Module Scan Tool Output Controls

#### Body Control Module Scan Tool Data Parameters

Parameter | System State | Expected Value | Definition
--- | --- | --- | ---
Operating Conditions: Engine ON
Accy/RAP Relay Command | -- | On | The scan tool displays On or Off. This is the state of the Accy/RAP relay.
Accessory Relay Command | -- | On | The scan tool displays On or Off. This is the state of the accessory relay.
All Door Lock Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the all door lock switch.
Ambient Light Sensor | -- | Varies | This displays Volts. This is the current voltage at the ambient light sensor.
Ambient Light Status | -- | Varies | The scan tool displays Night, Day, Unknown or Invalid. This is the state of the ambient light sensor.
Auto Hdlp. Disable Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the auto headlamp disable switch.
Backup Lamps | -- | Off | The scan tool displays On or Off. This is the state of the backup lamps.
Batt. Low at Start | -- | No | The scan tool displays Yes or No. Yes is displayed if the state of the battery charge is low during cranking.
Batt. Open Ckt. Tested | -- | No | The scan tool displays Yes or No. Yes is displayed if the BCM senses an open battery circuit.
Batt. Open Ckt. Voltage | -- | Varies | This displays Volts.
Batt. Voltage High Res. | -- | Varies | This displays Volts.
Battery Current | -- | Varies | This displays amps. This numeric value is the battery amperage.
Battery Sulfation Mode | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the battery sulfation mode.
Battery Voltage | -- | Varies | This displays Volts. This is the current battery voltage.
Battery Voltage | -- | Normal | This displays Normal or Out of Range. This is the current state of the system voltage.
BPP Sensor | -- | Varies | This displays Counts. This numeric value is the current brake pedal position.
BPP Sensor Reference | -- | Varies | This displays Counts. This numeric value is the BPP sensor reference.
BPPS High During Learn | -- | No | The scan tool displays Yes or No. Yes is displayed if the BPPS was high during BPP calibration.
BPPS Learned Home Position | -- | Varies | This displays Counts. This numeric value is the BPP sensor learned home position.
BPPS Low During Learn | -- | No | The scan tool displays Yes or No. Yes is displayed if the BPPS was low during BPP calibration.
BPPS Move During Learn | -- | No | The scan tool displays Yes or No. Yes is displayed if the BPPS was moved during BPP calibration.
BPPS Status | -- | Learned | The scan tool displays Invalid, Learned & Invalid, Undecided, Learning and Learned. This is the state of the BPPS calibration in the BCM.
Brake Applied Output Signal | -- | Off | The scan tool displays On or Off. This is the state of the brake applied output signal.
BTSI Fault | -- | Not Present | The scan tool displays Present or Not Present. Present is displayed if the BCM senses a brake transmission shift interlock (BTSI) fault.
Calculated Brake Pedal Position | -- | Varies | This displays Counts. This numeric value is the current brake pedal position.
Content Theft Mode | -- | Varies | The scan tool displays True or False. This is the mode of the content theft system.
Courtesy Lamp PWM Cmd. | -- | Varies | This displays percent. This is the current dimming percentage of the courtesy lamps.
Crank Abort | -- | False | The scan tool displays True or False. This is the state of the crank abort.
Cruise Control Switch | -- | Off | The scan tool displays Off, On, Resume, Set, Error or Cancel. This is the current state of the cruise control switch.
Cruise Ctrl. LED Dimming Cmd. | -- | Varies | This displays percent. This is the current dimming percentage of the cruise control indicator of the cruise switch.
CTD Status | -- | Disarmed | The scan tool displays Disarmed, Armed, Arm Delay or Alarm Active. This is the state of the content theft deterrent (CTD) system.
Ctsy. Lamp Actv. Reason | -- | Varies | The scan tool displays Off, Panic, Manual, Air Bag, Door Open, RFA, RFA Theft, Door Closed, Exit or Manual Defeat. This is the reason for courtesy lamp activation.
Current CTD Trigger | -- | None | The scan tool displays None, Drvr. Door, Psgr. Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Inclination, Remote, Batt. Reconnect, Power Mode or Tamper.
Current Power Mode | -- | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch.
Desired Battery Voltage | -- | Varies | This displays Volts. This is the desired battery voltage.
Dimming Control Reference | -- | Varies | This displays Volts. This is the dimming control reference voltage.
Dimming Control Signal | -- | Varies | This displays percent. This is the dimming control percentage.
Dimming Control Signal | -- | Varies | This displays Volts. This is the dimming control signal voltage.
Door Key Cyl. Unlock Switch | -- | Inactive | This displays Active or Inactive. This is the state of the door key cylinder unlock switch.
Door Lock Requestor | -- | Varies | The scan tool displays Power Lock, Door Key Cyl., Rear Closure, Emergency, Keyless Entry, 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.
Driver Door Ajar Sw. | -- | Door Closed | The scan tool displays Door Ajar or Door Closed. This is the state of the driver door ajar switch.
Driver Door Lock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door lock switch.
Driver Door Open Sw. | -- | Closed | The scan tool displays Open or Closed. This is the state of the driver door open switch.
Driver Door Unlock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door unlock switch.
Driver Identification | -- | Varies | The scan tool displays Unknown or Driver 1-7. This is the current driver identification as monitored by the BCM.
Drvr. Door Unlock Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the driver door unlock system.
Drvr. 1 RVS Status | -- | Varies | The scan tool displays On or Off. This is the state of the driver 1 RVS.
Drvr. 2 RVS Status | -- | Varies | The scan tool displays On or Off. This is the state of the driver 2 RVS.
Estimated Battery Temp. | -- | Varies | This displays °C (°F). This is the current estimated battery temperature.
Endgate Handle Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the endgate handle switch.
Endgate Lock Status | -- | Unlocked | The scan tool displays Unlocked or Locked. This is the current state of the endgate lock.
Endgate Release Cmd. | -- | Off | The scan tool displays On or Off. This is the current state of the endgate release.
Ext. Trunk/Liftglass Rel. Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the exterior trunk or liftglass release switch.
Flash to Pass Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the flash to pass switch.
Front Fog Lamp Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the front fog lamp relay system.
Front Fog Lamp Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the front fog lamp switch.
Fuel Economy Mode | -- | Active | The scan tool displays Active or Inactive. This is the state of the fuel economy mode.
Hazard Lamp Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the hazard lamp switch.
Headlamp Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the headlamp switch.
High Beam Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the high beam relay.
High Beam Select Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the high beam select switch.
Hood Ajar Switch | -- | Closed | The scan tool displays Ajar or Closed. This is the state of the hood ajar switch.
Hood Closed Switch | -- | Active | The scan tool displays Active or Inactive. This is the state of the hood closed switch.
Hood Open Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the hood open switch.
Hood Switch Fault | -- | Not Present | The scan tool displays Present or Not Present. Present is displayed if the BCM senses a hood switch fault.
Horn Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the horn relay.
HS Comm. Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the high speed communications command of the BCM.
Idle Boost Level 2 Counter | -- | Varies | This displays a numeric value. This is the number of level 2 idle boosts.
Idle Boost Level 3 Counter | -- | Varies | This displays a numeric value. This is the number of level 3 idle boosts.
Ign. Off/Run/Crank | -- | Run | The scan tool displays Key In/Off, Key Out/ACC, Crank or Run. This is the state of the ignition switch.
Ignition Accessory/Run | -- | Active | The scan tool displays Active or Inactive. This is the state of the ignition accessory/run.
Ignition Run/Crank | -- | Active | The scan tool displays Active or Inactive. This is the state of the ignition run/crank.
Ignition Switch Fault | -- | No | The scan tool displays Yes or No. Yes is displayed if the BCM senses an ignition switch fault.
Incandescent Dimming PWM Cmd. | -- | Varies | This displays percent. This is the current incandescent dimming percentage.
Int. Trunk/Liftglass Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the interior trunk or liftglass release switch.
Key Capture Solenoid Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the key capture solenoid.
Key in Ignition | -- | Yes | The scan tool displays Yes or No. This is the state of the key in ignition.
Key in Ignition Status | -- | Key In | The scan tool displays Key In or Key Out. This is the state of the key in ignition.
LED Dimming PWM Cmd. | -- | Varies | This displays percent. This is the current LED dimming percentage.
Left DRL Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the left daytime running lamp (DRL) relay.
Left Rear Door Ajar Sw. | -- | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the driver rear door ajar switch.
Left Turn Signal Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the left turn signal switch.
LF Turn Signal | -- | Off | The scan tool displays On or Off. This is the state of the left front turn signal.
LR Turn Signal | -- | Off | The scan tool displays On or Off. This is the state of the left rear turn signal.
Liftgate Handle Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the liftgate handle switch.
Liftgate Lock Status | -- | Unlocked | The scan tool displays Locked or Unlocked. This is the current state of the liftgate lock.
Liftgate Release Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the liftgate release.
Liftglass Release Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the liftglass release.
LF Turn Signal | -- | Off | The scan tool displays On or Off. This is the state of the left front turn signal.
Low Beam Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the low beam relay.
LR Window Enable Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the driver rear window enable system.
LR Window Up Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the driver rear window up request.
Off/Run/Crank Reference | -- | Varies | This displays volts. This is the current off/run/crank reference voltage.
Off/Run/Crank Signal | -- | Varies | This displays volts. This is the current off/run/crank signal voltage.
Parasitic Current | -- | Varies | This displays amps. This is the state of the parasitic draw on the battery.
Park Brake Switch | -- | Released | The scan tool displays Applied or Released. This is the state of the park brake switch.
Park Lamp Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the park lamp relay.
Parklamp Switch | -- | Off | The scan tool displays On or Off. This is the state of the park lamp switch.
Passenger Door Ajar Sw. | -- | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the passenger door ajar switch.
Passenger Door Open Sw. | -- | Closed | The scan tool displays Open or Closed. This is the state of the passenger door open switch.
Powertrain HS Comm. Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the powertrain high speed communications command.
Prev. State of Charge | -- | Varies | This displays percent. This was the previous state of charge of the battery.
Psgr. Door Lock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door lock switch.
Psgr. Door Unlock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door unlock switch.
Psgr. Door(s) Unlock Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the passenger doors unlock system.
Rain Sensor Signal | -- | Off | The scan tool displays Off, Low Speed, High Speed, Sensor Failed, Ckt. Fault Low, Ckt. Fault High, No Glass or No BCM Data. This is the state of the rain sensor signal.
Rear Cargo Lock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the rear cargo lock switch.
Rear Cargo Unlock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the rear cargo unlock switch.
Rear Closure Cyl. Unlock Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure cylinder unlock switch.
Rear Closure Open Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure open switch.
Rear Closure Ajar Sw. | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure ajar switch.
Rear Doors Lock Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the rear doors lock system.
Rear Doors Unlock Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the rear doors unlock system.
Regulator Setpoint | -- | Varies | This displays percent. This is the set point of the voltage regulator.
Remaining Starts 0 | -- | Varies | The scan tool displays True or False. True is displayed if there are no remaining starts.
Remote Start Attempts 0 | -- | Varies | The scan tool displays True or False. True is displayed if there are no remote start attempts.
RF Turn Signal | -- | Off | The scan tool displays On or Off. This is the state of the right front turn signal.
Right DRL Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the right daytime running lamp (DRL) relay.
Right Rear Door Ajar Sw. | -- | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the passenger rear door ajar switch.
Right Turn Signal Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the right turn signal switch.
RR Turn Signal | -- | Off | The scan tool displays On or Off. This is the state of the right rear turn signal.
RR Window Down Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the passenger rear window down system.
RR Window Enable Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the passenger rear window enable system.
RR Window Up Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the passenger rear window up system.
Run Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the run relay.
Run Abort | -- | False | The scan tool displays True or False. True is displayed if a run abort was executed.
Run Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the run relay.
Shift Lock Solenoid Command | -- | Off | The scan tool displays On or Off. This is the state of the shift lock solenoid.
Start Up State of Charge | -- | Varies | This displays percent. This was the last state of charge of the battery at start up.
State of Charge | -- | Varies | This displays percent. This is the current state of charge of the battery.
State of Charge Low | -- | No | The scan tool displays Yes or No. Yes is displayed if the state of charge of the battery is low.
Stop Lamp Relay Command | -- | Off | The scan tool displays On or Off. This is the state of the stop lamp relay.
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 2 Status | -- | Idle | The scan tool displays Idle or Switch 1-10. This is the state of the steering wheel controls (SWC) bank 2.
Tap Up/Down Switch | -- | Off | The scan tool displays On, Off, Up or Down. This is the state of the tap up/down switch.
Theft LED | -- | Off | The scan tool displays On, Off, Flash Slow or Flash Fast. This is the current state of the theft indicator.
Tonneau Release Cmd. | -- | Off | The scan tool displays On or Off. This is the current state of the tonneau release.
Tow/Haul Mode Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the tow/haul mode switch.
Traction Control Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the traction control switch.
Valet Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the valet switch.
Washer Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the washer relay.
Windshield Washer Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the windshield washer switch.
Windshield Wiper Switch | -- | Off | The scan tool displays Off, Intermittent, Low, High or Switch Fault. This is the state of the windshield wiper switch.
Wiper Delay Setting | -- | Varies | This displays a numeric value. This is the wiper delay setting.
Wiper High Speed Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the wiper high speed relay.
Wiper High Speed Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the wiper high speed switch.
Wiper Park Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the wiper park switch.
Wiper Relay Cmd. | -- | Off | The scan tool displays On or Off. This is the state of the wiper relay.

#### Body Control Module Scan Tool Output Controls

Scan Tool Output Control | Description
--- | ---
Accy/RAP Relay | This output control is used to command the Accy/RAP relay On and Off.
Backup Lamps | This output control is used to command the backup lamps On and Off.
BPP Sensor Calibration | This output control is used to command the BCM to calibrate the brake pedal position (BPP) sensor to zero.
Courtesy Lamp | This output control is used to command the foot wells and courtesy lamps On and Off.
DRL | This output control is used to command the daytime running lamps On and Off.
Fog Lamps | This output control is used to command the fog lamps On and Off.
High Beams | This output control is used to command the high beam headlights On and Off.
Horn | This output control is used to command the horn On and Off.
Incandescent Dimming | The body control module (BCM) dims from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments.
Incandescent Dimming | The BCM dims the incandescent dimming from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments.
LED Dimming | The BCM dims the LED dimming from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments.
Left Rear Window | This output control is used to command the left rear window Up and Down.
LF Turn Signal | This output control is used to command the left front turn signal On and Off.
Liftglass Release | This output control is used to command the liftglass release switch On and Off.
Lock Rear Doors | This output control is used to command the rear doors to lock.
Low Beams | This output control is used to command the low beam headlights On and Off.
LR Turn Signal | This output control is used to command the left rear turn signal On and Off.
Parking Lamps | This output control is used to command the parking lamps On and Off.
RF Turn Signal | This output control is used to command the right front turn signal On and Off.
Right Rear Window | This output control is used to command the right rear window Up and Down.
RR Turn Signal | This output control is used to command the right rear turn signal On and Off.
Run/Crank Relay | This output control is used to command the run/crank relay On and Off.
Setup SDM Primary Key in BCM | This output control is used to set up the SDM primary key into the BCM.
Shift Lock Solenoid | This output control is used to command the shift lock solenoid On and Off.
Unlock Rear Doors | This output control is used to command the rear doors to unlock.
Wiper High Speed Relay | This output control is used to command the wiper high speed relay On and Off.
Wiper Relay | This output control is used to command the wiper relay On and Off.
Wiper Washer Motor | This output control is used to command the wiper washer motor On and Off.