Body Control Module Scan Tool Information
Body Control Module Scan Tool Data Parameters
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Engine ON | ||
| ACC Gap Switch | Inactive | The scan tool displays Up, Down or Inactive. This is the state of the adaptive cruise control (ACC) gap switch. |
| ACC Gap Switch | Varies | This displays Volts. This is the current voltage at the adaptive cruise control (ACC) gap switch. |
| Accessory Switch | Active | The scan tool displays Active or Inactive. This is the state of the accessory switch. |
| Accy. Indicator Command | Off | The scan tool displays On or Off. This is the state of the accessory indicator. |
| Accy. Relay Command | Off | The scan tool displays On or Off. This is the state of the accessory relay. |
| ALC Switch | Off | The scan tool displays On or Off. This is the state of the automatic lamp control (ALC) switch. |
| Auto. Trans. Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if automatic transmission is equipped on the vehicle. |
| Auxiliary Power | Off | The scan tool displays On or Off. This is the state of the auxiliary power. |
| Backup Lamp Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the backup lamp relay. |
| Battery Voltage Signal | Varies | This displays Volts. This is the current battery system voltage. |
| BPP Sensor | Varies | This displays Volts. This is the current brake pedal position (BPP) sensor voltage signal. |
| BPP Sensor Reference | Varies | This displays Volts. This is the current brake pedal position (BPP) sensor reference voltage signal. |
| BPPS High During Learn | No | The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was high during the learn procedure. |
| BPPS Learned Home Position | Varies | This displays Counts. This is the brake pedal position sensor (BPPS) learned home position measured in counts. |
| BPPS Low During Learn | No | The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was low during the learn procedure. |
| BPPS Move During Learn | No | The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor (BPPS) was moved during the learn procedure. |
| BPPS Status | Valid | The scan tool displays Valid, Invalid or Unlearned. This is the state of the brake pedal position sensor (BPPS). |
| Brake Apply Sensor Reference Signal | Varies | This displays Volts. This is the current brake pedal position (BPP) sensor reference voltage signal. |
| Column Lock Relay Command | Off | The scan tool displays On or Off. This is the state of the column lock relay. |
| Column Lock Relay Signal | Off | The scan tool displays On or Off. This is the state of the column lock relay signal. |
| Content Theft Previous Arm State | Varies | The scan tool displays Active or Inactive. |
| Content Theft System Status | Varies | The scan tool displays Disabled, Intent to Arm, Closed Dr. Wait, Arm Simulate, Trunk Accessed, Armed Disabled, Triggers Active, Triggers Inactiv, Arm Delay, Simulated, Armed, Pre-alarm, Alarm Siren or Alarm Visible. This is the current state of the content theft system. |
| Cruise | Disabled | The scan tool displays Enabled or Disabled. This is the state of the cruise system. |
| Cruise Control Sw. to Batt. Voltage Ratio | Varies | This displays %. This is the voltage ratio between the cruise control switch and battery voltage. |
| Cruise Control Switch | Off | The scan tool displays On, Off, Resume, Set or Error. This is the current state of the cruise control switch. |
| Cruise Control Switch | Varies | This displays Volts. This is the current voltage at the cruise control switch. |
| Current Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the current position of the ignition switch. |
| Day/Night Status | Varies | The scan tool displays Day, Night, Delay Off, or Off. |
| DRL Status | Varies | The scan tool displays On or Off. This is the state of the daytime running lamps (DRL). |
| Engine Type | Varies | The scan tool displays LH2, LS2, LS7, LC3, LS3 or LS9. This is the type of engine on the vehicle. |
| Export Alarm | Varies | The scan tool displays Equipped or Not Equipped. Equipped is displayed if an export alarm is installed on the vehicle. |
| Export Fog Lamp Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if export fog lamps are installed on the vehicle. |
| Export Intrusion Alarm | Varies | The scan tool displays Equipped or Not Equipped. Equipped is displayed if an export intrusion alarm system is installed on the vehicle. |
| Exterior Lights | Varies | The scan tool displays USA or Canada. |
| Flash to Pass Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the flash to pass switch. |
| Fog Lamp Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the fog lamp relay. |
| Folding Top Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if a folding top is installed on the vehicle. |
| Front Fog Lamp Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if front fog lamps are installed on the vehicle. |
| Front Fog Lamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the front fog lamp switch. |
| Hazard Lamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the hazard lamp switch. |
| Headlamp Off Switch | Off | The scan tool displays On or Off. This is the state of the headlamp off switch. |
| Headlamp On Switch | Off | The scan tool displays On or Off. This is the state of the headlamp on switch. |
| Headlamp Wash | Present | The scan tool displays Present or Not Present. This is the status of the headlamp wash. |
| Head Up Display | Varies | The scan tool displays Equipped or Not Equipped. Equipped is displayed if a head up display (HUD) is installed on the vehicle. |
| 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. |
| Horn Relay Command | Off | The scan tool displays On or Off. This is the state of the horn relay. |
| HVAC Option | Varies | The scan tool displays C68 or CJ2. This is the type of HVAC installed on the vehicle. |
| Idle Boost Level | Varies | This displays percent. This is the state of the idle boost level percentage. |
| Ign. Mode Sw. Dimming Command | Varies | The scan tool displays On or Off. This is the state of the ignition mode switch dimming command. |
| Ignition Mode Switch | Varies | This displays Volts. This is the current ignition mode switch voltage. |
| Inadvertent Power Signal | Varies | The scan tool displays Active or Inactive. This is the state of the inadvertent power signal. |
| Inadvertent Power Cmd. | Varies | The scan tool displays On or Off. This is the state of the inadvertent power command. |
| Key in Cylinder Switch | Active | The scan tool displays Active or Inactive. This is the state of the key in the ignition cylinder. |
| Learn in Progress | No | The scan tool displays Yes or No. Yes is displayed if the brake pedal position sensor is learning the home position. |
| Left Turn Signal Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the left turn signal switch. |
| LF Door Ajar Switch | Varies | The scan tool displays Ajar or Door Closed. This is the current state of the driver door ajar switch. |
| LF Door Open Switch | Varies | The scan tool displays Key Off or Door Open. This is the current state of the driver door open switch. |
| LF Latch Solenoid Command | Inactive | The scan tool displays Active or Inactive. This is the current state of the driver front latch solenoid. |
| LF Turn Lamp/DRL Status | Off | The scan tool displays On or Off. This is the state of the driver front turn lamp/DRL. |
| LF Turn/Hazard Lamp Command | Off | The scan tool displays On or Off. This is the state of the driver front turn/hazard lamp. |
| Low Beam DRL Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if low beam daytime running lamps are equipped on the vehicle. |
| Low Beam Relay Command | Off | The scan tool displays On or Off. This is the state of the low beam relay. |
| LR Turn Lamp/DRL Status | Off | The scan tool displays On or Off. This is the state of the driver rear turn lamp/DRL. |
| LR Turn/Hazard Lamp Command | Off | The scan tool displays On or Off. This is the state of the driver rear turn/hazard lamp. |
| Memory Option AAB | Not Present | The scan tool displays Present or Not Present. |
| Off Indicator Command | Off | The scan tool displays On or Off. This is the state of the off indicator. |
| OnStar | Varies | The scan tool displays Yes or No. Yes is displayed if OnStar is equipped on the vehicle. |
| Park Brake Solenoid A Command | Off | The scan tool displays On or Off. This is the state of the park brake solenoid A. |
| Park Brake Solenoid B Command | Off | The scan tool displays On or Off. This is the state of the park brake solenoid B. |
| Park Lamp Override | Varies | The scan tool displays USA or Canada. |
| Park Lamp Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the park lamp relay. |
| Park Lamp Switch | Off | The scan tool displays On or Off. This is the state of the park lamp switch. |
| Park Switch (Auto) | Varies | The scan tool displays Active or Inactive. This is the state of the park switch. |
| Passive Arming | Varies | The scan tool displays Enabled or Disabled. This is the state of the passive arming. |
| Perimeter Lighting | Varies | The scan tool displays Enabled or Disabled. This is the state of the perimeter lighting. |
| Point of Sale | Varies | The scan tool displays USA, Canada, Europe, Japan, Gulf States, Mexico, Guam, Kuwait, Saudi Arabia or Africa. |
| Rain Sensor | Varies | The scan tool displays Present or Not Present. Present is displayed if a rain sensor is equipped on the vehicle. |
| Rear Fog Lamp Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if rear fog lamps are equipped on the vehicle. |
| Rear Fog Lamp Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the rear fog lamp relay. |
| Rear Fog Lamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear fog lamp switch. |
| Rear Stop/Turn Lamps | Varies | The scan tool displays Combined or Not Combined. Combined is displayed if the rear stop lamps are combined with the turn lamps. |
| RF Door Ajar Switch | Door Closed | The scan tool displays Ajar or Door Closed. This is the current state of the passenger door ajar switch. |
| RF Door Open Switch | Varies | The scan tool displays Key Off or Door Open. This is the current state of the driver passenger door open switch. |
| RF Latch Solenoid Command | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door latch solenoid. |
| RF Turn Lamp/DRL Status | Off | The scan tool displays On or Off. This is the state of the passenger front turn lamp/DRL. |
| RF Turn/Hazard Lamp Command | Off | The scan tool displays On or Off. This is the state of the passenger front turn/hazard lamp. |
| RFA Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if a remote function actuator (RFA) is equipped on the vehicle. |
| RFA Light Feedback | Varies | The scan tool displays Enabled or Disabled. This is the state of the remote function actuator (RFA) light feedback. |
| RFA Lock Horn Feedback | Varies | The scan tool displays Enabled or Disabled. This is the state of the remote function actuator (RFA) lock horn feedback. |
| RFA Unlock Horn Feedback | Varies | The scan tool displays Enabled or Disabled. This is the state of the remote function actuator (RFA) unlock horn feedback. |
| Right Turn Signal Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the right turn signal switch. |
| RR Turn Lamp/DRL Status | Off | The scan tool displays On or Off. This is the state of the passenger rear turn lamp/DRL. |
| RR Turn/Hazard Lamp Command | Off | The scan tool displays On or Off. This is the state of the passenger rear turn/hazard lamp. |
| RTD Suspension | Varies | The scan tool displays Present or Not Present. Present is displayed if damping (RTD) suspension is equipped on the vehicle. |
| Run/Crank Relay Command | Varies | The scan tool displays On or Off. This is the state of the run/crank relay command. |
| Start Indicator Command | Off | The scan tool displays On or Off. This is the state of the start indicator command. |
| Steering Column Lock | Varies | The scan tool displays Present or Not Present. Present is displayed if steering column lock is equipped on the vehicle. |
| Stop Lamp Relay Command | Off | The scan tool displays On or Off. This is the state of the stop lamp relay. |
| Stop Lamp Status | Off | The scan tool displays On or Off. This is the state of the stop lamps. |
| TCS Switch | Released | The scan tool displays Release or Pressed. This is the state of the traction control switch. |
| Theater Dimming Command | Varies | The scan tool displays On or Off. This is the state of the theater dimming. |
| Tire Inflation Monitor | Varies | The scan tool displays Present or Not Present. Present is displayed if a tire inflation monitor is equipped on the vehicle. |
| Tire Pressure Monitor | Varies | The scan tool displays Present or Not Present. Present is displayed if a tire pressure monitor is equipped on the vehicle. |
| Traction Control Equipped | Varies | The scan tool displays Yes or No. Yes is displayed traction control is equipped on the vehicle. |
| Trunk Ajar Switch | Trunk Closed | The scan tool displays Trunk Ajar or Trunk Closed. This is the state of the trunk ajar switch. |
| Trunk Key Cylinder Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the trunk key cylinder switch. |
| Trunk Release Solenoid Command | Off | The scan tool displays On or Off. This is the state of the trunk release solenoid. |
| Trunk Release Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the trunk release switch. |
| VSES Equipped | Varies | The scan tool displays Yes or No. Yes is displayed if a vehicle stability enhancement system (VSES) is equipped on the vehicle. |
| 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. Indicator Command | This output control commands the accessory indicator ON or OFF. |
| Aux. Pwr. Outlet Relay Ctrl. | This output control commands the auxiliary power relay. |
| Alarm Siren | This output control commands the alarm siren. |
| Backup Lamp Relay Control | The body control module (BCM) activates the backup lamps for 5 seconds when you select ON. This applies to vehicles equipped with automatic transmissions only. |
| BCM Setup | This output control is used to setup a new body control module (BCM). |
| BPP Sensor Calibration | This output control is used to command the BCM to calibrate the brake pedal position (BPP) sensor to zero. |
| Headlamp Washer | This output control commands the headlamp washer ON or OFF. |
| Horn Relay | The BCM activates the horn momentarily when you select ON. |
| LF Latch Solenoid | The BCM commands the LF door latch release on. The left front door latch should release when commanded. |
| Off Indicator Command | This output control commands the off indicator ON or OFF. |
| Park Brake Solenoid Relay A | This output control is used to command the park brake solenoid relay A. |
| Park Brake Solenoid Relay B | This output control is used to command the park brake solenoid relay B. |
| RF Latch Solenoid | The BCM commands the RF door latch release on. The right front door latch should release when commanded. |
| Run/Crank Relay Control | This controls the run/crank relay. |
| Setup SDM Part Number in BCM | This output control is used to set up the SDM part number into the BCM. |
| Start Indicator Command | This output control commands the start indicator ON or OFF. |
| Stop Lamp Relay Control | The BCM activates the stop lamps for 5 seconds when you select ON. |
| Trunk Release | The BCM activates the trunk release solenoid when you select ON. |