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 |
|---|---|---|---|
Ignition is ON, engine OFF, and vehicle is stationary | |||
Acc./RAP Relay Command | Acc./RAP relay switch activated | On | The scan tool displays On or Off. This is the state of the Acc./RAP relay. |
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 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 idle position | Inactive | ||
Backup Lamps | -- | On | The scan tool displays On or Off. This is the state of the backup lamps. |
-- | Off | ||
Battery Current | -- | amperes | 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 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 circuit closed | No | ||
Battery Sulfation Mode | -- | Active | The scan tool displays Active or Inactive. This is the state of the 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. |
-- | 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. |
-- | 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. |
-- | No | ||
BPPS Move During Learn | -- | Yes | The scan tool displays Yes or No. Yes is displayed if the BPPS was moved during BPP calibration. |
-- | 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, Undecided and Learning. This is the state of the BPPS calibration in the BCM. |
-- | Learned | ||
-- | Undecided | ||
-- | Learning | ||
Brake Applied Output Signal | -- | On | The scan tool displays On or Off. This is the state of the 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. |
-- | 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. |
-- | False | ||
Courtesy Lamp Activation Reason | -- | Off | This parameter displays the interior lamp activation reason. |
-- | Door Open | ||
-- | 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. |
-- | False | ||
Cruise Control Switch | Cruise control switched Off | Switched Off | The scan tool displays Switched Off, Switched On, Resume, Set, Error or Cancel. This is the current state of the cruise control switch. |
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, Hood, Ignition, Intrusion, Inclination, Remote, Battery Reconnect, Power Mode or Tamper. These parameters are the possible current content theft deterrent. |
-- | Driver Door | ||
-- | Passenger Door | ||
-- | Hood | ||
-- | Ignition | ||
-- | Intrusion | ||
-- | Inclination | ||
-- | Remote | ||
-- | Battery Reconnect | ||
-- | Power Mode | ||
-- | Tamper | ||
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 | ||
Desired 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 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, 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. | ||
Remote key door lock button pressed | Keyless Entry | ||
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. |
-- | Inactive | ||
Driver Door Open Switch | -- | Open | The scan tool displays Open or Closed. This is the state of the 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 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. |
-- | Inactive | ||
Driver Identification | Driver key 1/2/3 in ignition | Unknown | This parameter identifies the current key in the ignition. |
Driver 1 | |||
Driver 2 | |||
Driver 3 | |||
Drivers Door Ajar Switch | With door open | Door Ajar | The scan tool displays the current status of the 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. |
-- | 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 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. |
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 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. |
-- | Inactive | ||
Hazard Lamp Switch | -- | Active | The scan tool displays Active or Inactive. This is the state of the 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 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 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 switch deactivated | Inactive | ||
Hood Ajar Switch | With hood ajar/open | Open | The scan tool displays Open or Closed. This is the state of the hood ajar switch. |
With hood closed | Closed | ||
Hood Closed Switch | Hood closed | Active | This parameter displays the status of the 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 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. |
-- | Not Present | ||
Horn Relay Command | Horn Pressed | On | The scan tool displays On or Off. This is the state of the horn relay. |
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 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 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 Off/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 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. |
-- | 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. |
-- | Inactive | ||
Key Capture Solenoid Command | -- | On | The scan tool displays On or Off. This is the state of the key capture solenoid. |
-- | 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 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 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. |
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. |
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 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 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 disengaged | Released | ||
Park Lamp Relay Command | -- | On | The scan tool displays On or Off. This is the state of the park lamp relay. |
-- | Off | ||
Park Lamp Switch | Park lamp switch activated | Active | This parameter displays the status of the park lamp switch. |
Park lamp switch deactivated | Inactive | ||
Passenger Door Ajar Switch | With door open | Door Ajar | The scan tool displays the current status of the passenger door ajar switch. |
With door closed | Door Closed | ||
Passenger Door Lock Switch | -- | Active | The scan tool displays Active or Inactive. This is the state of the passenger door lock switch. |
-- | Inactive | ||
Passenger Door Open Switch | -- | Open | The scan tool displays Open or Closed. This is the state of the 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 unlock switch deactivated | Off | ||
Passenger Door Unlock Switch | -- | Active | The scan tool displays Active or Inactive. This is the state of the passenger door unlock switch. |
-- | Inactive | ||
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 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. |
-- | 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. |
-- | False | ||
Remote Start Attempts 0 | -- | True | The scan tool displays True or False. True is displayed if there are no remote start attempts. |
-- | False | ||
RF Turn Signal | Right front turn signal activated | On | This parameter displays the status of the right front 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. |
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 in idle position | Inactive | ||
Run Abort | -- | True | The scan tool displays True or False. True is displayed if a run abort was executed. |
-- | 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. |
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 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. |
-- | No | ||
Stop Lamp Relay Command | Yes | ||
No | |||
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. |
-- | Switch 1 - 10 | ||
TC/ESP Switch (Traction Control) | Traction control turned ON | Active | This parameter displays the status of the TC/ESP switch (traction control). |
Traction control turned OFF | Inactive | ||
Theft LED | -- | On | The scan tool displays on, fast flash or off. This is the current state of the content theft deterrent indicator. |
-- | Fast Flash | ||
-- | 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 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 idle position | Off | ||
Windscreen Washer Switch | Windscreen washer switch activated | Active | This parameter displays the status of the windscreen washer switch. |
Windscreen washer switch in idle position | Inactive | ||
Windscreen Wiper Switch | User dependent | Off | The scan tool displays Off, Intermittent, Low or Switch Fault. This is the state of the windscreen wiper switch. |
Intermittent | |||
Low | |||
-- | 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 | 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 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 deactivated | Inactive | ||
Wiper Park Switch | Wiper park switch activated | Active | This parameter displays the status of the 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 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. |
Driver Door Unlock Command | Doors | The scan tool commands the Driver Door Unlock On or Off. This is the state of the driver door unlock switch. |
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. |
DRL | Exterior Lighting | The scan tool is used to command the daytime running lamps On and Off. |
Fog Lamp | Exterior Lighting | The scan tool is used to command the fog lamp On or Off. |
High Beam | 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. |
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. |
Park Lamp | 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. |
Run/Crank Relay Command | Miscellaneous Test | The scan tool commands the Run/Crank relay On or Off. |
Shift Lock | 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 Wash 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. |
