For 1990-2009 cars only
Software Part Number: Part number of component program or the ECU. Used to determine
applicability to vehicle RPO content.
Ambient Light Sensor: 0-5 volt input used to determine operation of automatic lights. Also used as sun-load sensor for Automatic HVAC.
Auto-Learn Timer: Indicates current status of the timer required to control the auto-learn sequence for reprogramming an ignition key for use with the module that controls the vehicle theft deterrent (VTD) system. If the ignition key used is not programmed into the VTD, the vehicle will not operate.
Courtesy Switch: Input from the courtesy lamp switch input originating as the courtesy lamp output from the manual interior lamp dimming potentiometer.
Courtesy Ground: Input showing the state of the courtesy ground from the control module.
Crank: Input from ignition switch closed to B+ when the ignition switch is in the CRANK position.
Door Lock Switch: Input from the manual door lock switches located on the interior door panels of the front doors.
Door Lock Output: Output indicates the activation of the lock motor drive circuit.
Door Unlock Switch: Input from the manual door lock switches located on the interior door panels of the front doors.
Door Unlock Output: Output indicates the activation of the unlock motor drive circuit.
Driver Door Switch: Input from the driver door indicating door status (Open-Closed).
Door Handle Switch: Input indicating a door handle has been activated.
Driver Unlock Output: Output indicates the activation of the driver door unlock motor drive circuit.
Front Fog Lamp Relay: Output indicates state that the control module has commanded for the relay.
Ground 2: Input showing the state of the ground circuit to the control module.
Headlamp Switch: Input from manual headlamp switch. Tells control module that the operator has requested headlamp operation.
Headlamps: Output indicates state that the control module has commanded for the relay.
His. DTC Cyc. Counts: Counter indicating number of ignition switch ON/OFF cycles the history DTCs have run/have yet to run until clearing.
Horn Output: Output indicates state that the control module has commanded for the relay.
Ignition 0: Input to the control module from the ignition switch indicating the Ignition 0 position. Switch closed (HOT) in ignition switch positions Unlock, Accessory, Run, Crank
Ignition 1: Input to the control module from the ignition switch indicating the Ignition 1 position. Switch closed (HOT) in ignition switch positions Run, Crank
Inadvertent Power Output: Input indicating the sensed state of the inadvertent power request circuit.
Inadvertent Power Output: Output indicating the state as commanded by the control module.
Key In Ignition: Input from ignition switch indicating that the ignition key is inserted into the ignition switch. HOT with key in ignition and ignition switch position LOCK.
LCM Lights On Chime: Output to the chime for a lights on with ignition off and driver door open condition.
Left Turn Signal: Output indicating the commanded state by the control module.
Lock-out Timer: Indicates time remaining in lock-out sequence for vehicle theft deterrent (VTD) system. Lock-out situation caused by using an ignition switch key that is not program into the VTD system.
Low Tire Reset: Input indicating condition of the low tire warning reset switch circuit.
Lt. Turning Signal Sw.: Input indicating condition of the right turn signal switch circuit.
Park Brake Switch: Input from park brake switch to control module. Used to determine operation of daytime running lights (DRL) and indicator system.
Parklamps: Output indicates state that the control module has commanded for the lamps.
Passkey Data Voltage: Input from resistor voltage divider consisting of the Passlock Sensor internal resistance and the resistor installed in the ignition key. Range of 0-5 volts.
RAP Output: Output indicates state that the control module has commanded.
RFA Link In: Input indicates the state to the control module of the link for RFA operation
RFA Link Out: Output indicates that the control module has activated the link for RFA operation.
Right Turn Signal: Output indicating command sent by control module.
Rt. Turning Signal Sw.: Input indicating state of right turn input.
Seat Belt Status: Indicates whether driver seat belt switch circuit is closed or open.
Security Lamp State: Indicates commanded state of security lamp from the control module.
Seed and Key Timer: Indicates the time remaining for programming functions.
Shift Select Switch: Input indicating the transmission shift mode selected.
TCS Switch: Input from traction control switch, indicating selection by vehicle operator.
Theater Dimming 1: Output indicates that the control module has commanded the theater dimming function.
Theft Data: Input indicates voltage drop of resistor in ignition switch. Range of 0-5 volts.
Theft Mode: Output indicating the current theft mode status.
Truck Ajar Switch: Indicates state of switch used to control lamp in truck and IPC indicator.
Ambient Light Sensor: 0-5 volt input used to determine operation of automatic lights. Also used as sun-load sensor for Automatic HVAC.
Auto-Learn Timer: Indicates current status of the timer required to control the auto-learn sequence for reprogramming an ignition key for use with the module that controls the vehicle theft deterrent (VTD) system. If the ignition key used is not programmed into the VTD, the vehicle will not operate.
Courtesy Switch: Input from the courtesy lamp switch input originating as the courtesy lamp output from the manual interior lamp dimming potentiometer.
Courtesy Ground: Input showing the state of the courtesy ground from the control module.
Crank: Input from ignition switch closed to B+ when the ignition switch is in the CRANK position.
Door Lock Switch: Input from the manual door lock switches located on the interior door panels of the front doors.
Door Lock Output: Output indicates the activation of the lock motor drive circuit.
Door Unlock Switch: Input from the manual door lock switches located on the interior door panels of the front doors.
Door Unlock Output: Output indicates the activation of the unlock motor drive circuit.
Driver Door Switch: Input from the driver door indicating door status (Open-Closed).
Door Handle Switch: Input indicating a door handle has been activated.
Driver Unlock Output: Output indicates the activation of the driver door unlock motor drive circuit.
Front Fog Lamp Relay: Output indicates state that the control module has commanded for the relay.
Ground 2: Input showing the state of the ground circuit to the control module.
Headlamp Switch: Input from manual headlamp switch. Tells control module that the operator has requested headlamp operation.
Headlamps: Output indicates state that the control module has commanded for the relay.
His. DTC Cyc. Counts: Counter indicating number of ignition switch ON/OFF cycles the history DTCs have run/have yet to run until clearing.
Horn Output: Output indicates state that the control module has commanded for the relay.
Ignition 0: Input to the control module from the ignition switch indicating the Ignition 0 position. Switch closed (HOT) in ignition switch positions Unlock, Accessory, Run, Crank
Ignition 1: Input to the control module from the ignition switch indicating the Ignition 1 position. Switch closed (HOT) in ignition switch positions Run, Crank
Inadvertent Power Output: Input indicating the sensed state of the inadvertent power request circuit.
Inadvertent Power Output: Output indicating the state as commanded by the control module.
Key In Ignition: Input from ignition switch indicating that the ignition key is inserted into the ignition switch. HOT with key in ignition and ignition switch position LOCK.
LCM Lights On Chime: Output to the chime for a lights on with ignition off and driver door open condition.
Left Turn Signal: Output indicating the commanded state by the control module.
Lock-out Timer: Indicates time remaining in lock-out sequence for vehicle theft deterrent (VTD) system. Lock-out situation caused by using an ignition switch key that is not program into the VTD system.
Low Tire Reset: Input indicating condition of the low tire warning reset switch circuit.
Lt. Turning Signal Sw.: Input indicating condition of the right turn signal switch circuit.
Park Brake Switch: Input from park brake switch to control module. Used to determine operation of daytime running lights (DRL) and indicator system.
Parklamps: Output indicates state that the control module has commanded for the lamps.
Passkey Data Voltage: Input from resistor voltage divider consisting of the Passlock Sensor internal resistance and the resistor installed in the ignition key. Range of 0-5 volts.
RAP Output: Output indicates state that the control module has commanded.
RFA Link In: Input indicates the state to the control module of the link for RFA operation
RFA Link Out: Output indicates that the control module has activated the link for RFA operation.
Right Turn Signal: Output indicating command sent by control module.
Rt. Turning Signal Sw.: Input indicating state of right turn input.
Seat Belt Status: Indicates whether driver seat belt switch circuit is closed or open.
Security Lamp State: Indicates commanded state of security lamp from the control module.
Seed and Key Timer: Indicates the time remaining for programming functions.
Shift Select Switch: Input indicating the transmission shift mode selected.
TCS Switch: Input from traction control switch, indicating selection by vehicle operator.
Theater Dimming 1: Output indicates that the control module has commanded the theater dimming function.
Theft Data: Input indicates voltage drop of resistor in ignition switch. Range of 0-5 volts.
Theft Mode: Output indicating the current theft mode status.
Truck Ajar Switch: Indicates state of switch used to control lamp in truck and IPC indicator.
