For 1990-2009 cars

### Sensing and Diagnostic Module Scan Tool Data Parameters

Parameter | Expected Value | Definition
--- | --- | ---
Operating Conditions: Ignition ON
Active Switch | Enabled | The scan tool displays Enabled or Disabled. This is the state of the SIR active switch.
Active Switch | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the active switch.
Battery Voltage Signal | Volts | This displays volts. This is the voltage input supplied to the SDM.
Driver Seat Belt Switch | Unbuckled | The scan tool displays Buckled or Unbuckled. This is the state of the driver seat belt.
Driver Seat Belt Type | Varies | The scan tool displays Switch or Sensor. This is the type of driver seat belt.
Driver Seat Position Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the driver seat position sensor.
Driver Seat Position Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the driver seat position sensor.
Driver Seat Position Sensor | Rearward | The scan tool displays Rearward or Forward. This is the positional state of the drive seat.
Deployment Loop 1-12 | Enabled | Enabled
Deployment Loop 1-12 | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR has that number loop learned.
Deployment Loop 1-12 Type | Varies | The scan tool displays Not Used, LF Stage 1, RF Stage 1, LF Stage 2, RF Stage 2, LF Pretensioner., RF Preten., LF Side Bag, RF Side Bag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3 or Rt. Roof Stage 3. This is the type of loop.
Impact Sensor 1-6 | Enabled | The scan tool displays Enabled or Disabled. This is the state of the sensor.
Impact Sensor 1-6 | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR has that sensor learned.
Impact Sensor 1-6 Type | Learned | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2 or SIS Right Row 2. This is the type of SIR sensor.
Passenger Seat Belt Switch | Unbuckled | The scan tool displays Buckled or Unbuckled. This is the state of the passenger seat belt.
Passenger Presence System (PPS) Options | Not Present | The scan tool displays Not Present, Manual, Auto or Auto + Man. This is the current enabled option of the passenger presence system.
Passenger Presence System (PPS) Status | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger presence system.
Passenger Presence System (PPS) Status | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR has learned the passenger presence system.
Primary Key Status | Valid | The scan tool displays Unknown, Valid or Invalid. This is the state of the primary key of the SDM.
Passenger Seat Belt Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger seat belt sensor.
Passenger Seat Belt Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the passenger seat belt sensor.
Passenger Seat Belt Sensor | Varies | This displays mA. This is the amount of current supplied to the passenger seat belt sensor.
Passenger Seat Belt Sensor | Varies | The scan tool displays Switch or Sensor. This is the type of passenger seat belt.
Passenger Seat Position Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger seat position sensor.
Passenger Seat Position Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the passenger seat position sensor.
Passenger Seat Position Sensor | Rearward | The scan tool displays Rearward or Forward. This is the positional state of the passenger seat.
Received Primary Key | Valid | The scan tool displays Unknown, Valid or Invalid. Valid is shown if the primary key received from the BCM matches the SDM primary key.
Received VIN Digits 2-5 | Varies | The scan tool displays the Secondary Key which includes digits 2 though 5 of the VIN that the BCM sends to the SDM.
Received VIN Digits 6-7 | Varies | The scan tool displays the Secondary Key which includes digits 6 and 7 of the VIN that the BCM sends to the SDM.
Rollover Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the rollover sensor.
Rollover Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the rollover sensor.
Run/Crank | Active | This displays volts. This is the current power mode of the SDM.
Secondary Key Status | -- | The scan tool displays Active or Inactive. This is the state of the Run/Crank relay.
SDM Primary Key | Varies | The scan tool displays the primary key that the SDM has stored to memory.
SIR Warning Indicator | Inactive | The scan tool displays On or Off. This is the status of the SIR warning indicator.