Scan Tool Parameter  | Data List  | Units Displayed  | Typical Data Value  | 
|---|---|---|---|
Ignition ON/Engine OFF/Vehicle in PARK/Park brake RELEASED/Headlamps in AUTO/All doors/tailgate closed  | |||
Backlight Dimming  | Data  | Percent  | Varies  | 
Battery Voltage  | Data  | Volts  | Varies  | 
Dimming Input  | Data  | Volts  | Varies  | 
Light Sensor  | Data  | Volts  | 2.4 Volts Maximum Light to 4.7 Volts Maximum Dark  | 
Backup Light Request  | Inputs  | Active/Inactive  | Inactive  | 
Driver Door Ajar Sw.  | Inputs  | On/Off  | Off  | 
Flash to Pass Switch  | Inputs  | On/Off  | Off  | 
Front Fog Lamp Switch  | Inputs  | Active/Inactive  | Inactive  | 
Front Wipers Active  | Inputs  | Yes/No  | No  | 
Headlamp Switch  | Inputs  | On/Off  | Off  | 
High Beam Switch  | Inputs  | On/Off  | Off  | 
Ignition 0  | Inputs  | On/Off  | On  | 
Ignition 1  | Inputs  | On/Off  | On  | 
Ignition Accessory  | Inputs  | Active/Inactive  | Active  | 
Inadvertent Power Relay  | Inputs  | On/Off  | On  | 
Key in Ignition  | Inputs  | Yes/No  | Yes  | 
Park Brake Switch  | Inputs  | Set/Released  | Released  | 
Park Lamp Switch  | Inputs  | Active/Inactive  | Inactive  | 
Passenger Door Ajar Sw.  | Inputs  | On/Off  | Off  | 
Backup Lamps  | Output  | On/Off  | Off  | 
Daytime Running Lamps  | Output  | Active/Inactive  | Active  | 
High Beam Relay  | Output  | On/Off  | Off  | 
Low Beam Output  | Output  | On/Off  | Off  | 
Park Lamp Relay  | Output  | On/Off  | Off  |