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Body Control Module Scan Tool Information

Body Control Module Scan Tool Data Parameters

Parameter System State Expected Value Definition
Operating Conditions:  Ignition ON, Vehicle in Park, All Doors Closed
A/C Evaporator Temperature Sensor - OFF The scan tool displays ON or OFF. The value is OFF when the A/C and fan ON switch is OFF. The value is ON when the A/C and fan ON switch is ON. This parameter indicates condition of thermo amp.
Accessory - OFF The scan tool displays ON or OFF. The value is OFF when the ignition switch is in OFF position. The value is ON when the ignition switch is in ACC or ON position. This parameter indicates the condition of ignition switch ACC position.
Air Conditioning - OFF The scan tool displays ON or OFF. The value is OFF when the A/C switch is in OFF position. The value is ON when the A/C switch is in ON position. This parameter indicates the condition of A/C switch.
Brake Pedal Switch - RELEASED The scan tool displays APPLIED or RELEASED. The value is RELEASED when the brake pedal is released. The value is APPLIED when the brake pedal is depressed. This parameter indicates condition of stop lamp switch signal received from ABS actuator and electronic control on CAN communication line.
Driver Door Ajar Switch - OFF The scan tool displays ON or OFF. This parameter displays the driver door ajar switch status.
Driver Door Key Lock Switch - OFF The scan tool displays ON or OFF. This parameter displays the driver door key lock switch status.
Driver Door Key Unlock Switch - OFF The scan tool displays ON or OFF. This parameter displays the driver door key unlock switch status.
Driver Door Lock Switch - OFF The scan tool displays ON or OFF. This parameter displays the driver door lock switch status.
Driver Door Unlock Switch - OFF The scan tool displays ON or OFF. This parameter displays the driver door unlock switch status.
Engine Oil Pressure Switch - ON The scan tool displays ON or OFF. This parameter displays engine oil pressure switch status.
Front Fog Lamps Switch - OFF The scan tool displays ON or OFF. This parameter displays the front fog lamps switch status.
Hazard Lamps Switch - OFF The scan tool displays ON or OFF. The value is OFF when the hazard lamps switch is turned off. The value is ON when the hazard lamps switch is turned on. This parameter indicates the condition of hazard switch.
Headlamps Flash Switch - OFF The scan tool displays ON or OFF. This parameter displays the headlamps flash switch status.
Headlamps On Switch - OFF The scan tool displays ON or OFF. This parameter displays the headlamp on switch status.
Headlamps Switch Signal - OFF The scan tool displays ON or OFF. This parameter displays the headlamps switch signal status.
High Beam Select Switch - OFF The scan tool displays ON or OFF. This parameter displays the high beam select switch status.
HVAC Fan Request Signal - OFF The scan tool displays ON or OFF. The value is OFF when the blower fan is turned off. The value is ON when the blower fan is turned on. This parameter indicates the condition of fan switch.
Ignition On - OFF The scan tool displays ON or OFF. The value is OFF when the ignition switch is in OFF or ACC position. The value is ON when the ignition switch is in ON position. This parameter indicates condition of ignition switch ON position.
Key Fob Lock Button - OFF The scan tool displays ON or OFF. The value is OFF when the LOCK button of key fob is not pressed. The value is ON when the LOCK button of key fob is pressed. This parameter indicates the condition of key fob LOCK button.
Key Fob Panic Button - OFF The scan tool displays ON or OFF. The value is OFF when the PANIC button of key fob is not pressed. The value is ON when the PANIC button of key fob is pressed. This parameter indicates the condition of key fob PANIC button.
Key Fob Unlock Button - OFF The scan tool displays ON or OFF. The value is OFF when the UNLOCK button of key fob is not pressed. The value is ON when the UNLOCK button of key fob is pressed. This parameter indicates the condition of key fob UNLOCK button.
Key In Cylinder Switch - OFF The scan tool displays ON or OFF. The value is OFF when key is removed from ignition key cylinder. The value is ON when key is inserted into ignition key cylinder. This parameter indicates the condition of key switch.
Key In Ignition Status - OFF The scan tool displays ON or OFF. This parameter displays the key in ignition status.
Left Rear Door Ajar Switch - OFF The scan tool displays ON or OFF. This parameter displays the left rear door ajar switch status.
Left Turn Signal Switch - OFF The scan tool displays ON or OFF. The value is OFF when the left turn signal switch is turned off. The value is ON when the left turn signal switch is turned on. This parameter indicates the condition of combination switch.
Park Brake Switch - OFF The scan tool displays ON or OFF. This parameter displays the park brake switch status.
Park Lamps Switch - OFF The scan tool displays ON or OFF. This parameter displays the park lamps switch status.
Passenger Door Ajar Switch - OFF The scan tool displays ON or OFF. This parameter displays the passenger door ajar switch status.
Rear Defogger Switch - OFF The scan tool displays ON or OFF. The value is OFF when the rear window defogger switch is in OFF position. The value is ON when the rear window defogger switch is in ON position. This parameter indicates the condition of rear window defogger switch.
Rear Door Open Switch - OFF The scan tool displays ON or OFF. This parameter displays the rear door open switch status.
Right Rear Door Ajar Switch - OFF The scan tool displays ON or OFF. This parameter displays the right rear door ajar switch status.
Right Turn Signal Switch - OFF The scan tool displays ON or OFF. The value is OFF when the right turn signal switch is turned off. The value is ON when the right turn signal switch is turned on. This parameter indicates the condition of combination switch.
Seat Belt Status - UNBUCKLED The scan tool displays BUCKLED or UNBUCKLED. This parameter displays the seat belt status.
Tail Lamps - OFF The scan tool displays ON or OFF. This parameter displays the tail lamps status.
Transmission In Reverse - OFF The scan tool displays ON or OFF. This parameter displays the transmission in reverse status.
Windshield Washer Switch - OFF The scan tool displays ON or OFF. The value is OFF when the front washer switch is in OFF position. The value is ON when the front washer switch is turned on. This parameter indicates the condition of wiper operation of combination switch.
Windshield Wiper Delay - Varies The scan tool displays the windshield wiper delay status as counts.
Windshield Wiper Delay Switch - OFF The scan tool displays ON or OFF. This parameter displays the windshield wiper delay switch status.
Windshield Wiper High Speed Switch - OFF The scan tool displays ON or OFF. The value is OFF when the front wiper switch is in OFF position. The value is ON when the front wiper switch is in HI position. This parameter indicates the condition of wiper operation of combination switch.
Windshield Wiper Low Speed Switch - OFF The scan tool displays ON or OFF. The value is OFF when the front wiper switch is in OFF position. The value is ON when the front wiper switch is in LO position. This parameter indicates the condition of wiper operation of combination switch.
Windshield Wiper Park Speed Switch - OFF The scan tool displays ON or OFF. The value is OFF when the front wiper is in any position other than Park position. The value is ON when the front wiper switch is in Park position. This parameter indicates the condition of wiper operation of combination switch.
Body Control Module Scan Tool Output Controls

Scan Tool Output Control Description
Headlamp Reminder Chime The Body Control Module activates the headlamp reminder chime when you select On. The chime should be on until commanded Off.
Key In Ignition Reminder Chime The Body Control Module activates the key in ignition reminder chime when you select On. The chime should be on until commanded Off.
Low Engine Oil Pressure Indicator The Body Control Module activates the low engine oil pressure indicator when you select On. This indicator should illuminate until commanded Off.
Retained Accessory Power The Body Control Module actuates the retained accessory power relay when you select Short or Long. The retained accessory power relay should turn on allowing specific vehicle functions to operate.
Seat Belt Reminder Chime The Body Control Module activates the seat belt reminder chime when you select On. The chime should be on until commanded Off.
Security Indicator The Body Control Module activates the security indicator when you select On. This indicator should illuminate until commanded Off.
Turn Signal Lamps The Body Control Module activates the appropriate turn signal lamps when you select Left or Right. The turn signal lamps should illuminate until commanded Off.
Windshield Wiper The Body Control Module activates the appropriate windshield wiper speed when you select High, Low, or Intermittent. The windshield wiper should be on until commanded Off.