Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Data Definitions
The SIR scan tool data definitions contain a brief description of all SIR related parameters available on the scan tool. The parameters that are available on the scan tool are listed below in alphabetical order.
- Driver Seat Belt Switch
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The scan tool displays Buckled or Unbuckled. The signal from the drivers seat belt switch indicates whether the driver seat is buckled or unbuckled.
- Ignition Status
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The scan tool displays the status of the ignition switch as on or off.
- LF Sensor Range Information
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The scan tool displays whether the LF passenger presence sensor range information is OK or not OK.
- LF Sensor Voltage
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The scan tool displays in volts the LF passenger presence sensor voltage.
- LF Sensor Weight Information
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The scan tool displays in lbs. the LF passenger presence sensor weight information.
- LR Sensor Range Information
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The scan tool displays whether the LR passenger presence sensor range information is OK or not OK.
- LR Sensor Voltage
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The scan tool displays in volts the LR passenger presence sensor voltage.
- LR Sensor Weight Information
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The scan tool displays in lbs. the LR passenger presence sensor weight information.
- Number of DTCs
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The scan tool displays the number of current DTCs.
- Occupant Detection Sensor Status
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The scan tool displays the current status of the occupant detection sensor.
- Passenger Classification
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The scan tool displays the classification of the passenger as determined by the passenger presence system.
- Passenger Seat Belt Switch
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The scan tool displays Buckled or Unbuckled. The signal from the drivers seat belt switch indicates whether the driver seat is buckled or unbuckled.
- RF Sensor Range Information
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The scan tool displays whether the RF passenger presence sensor range information is OK or not OK.
- RF Sensor Voltage
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The scan tool displays in volts the RF passenger presence sensor voltage.
- RF Sensor Weight Information
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The scan tool displays in lbs. the RF passenger presence sensor weight information.
- RR Sensor Range Information
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The scan tool displays whether the RR passenger presence sensor range information is OK or not OK.
- RR Sensor Voltage
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The scan tool displays in volts the RR passenger presence sensor voltage.
- RR Sensor Weight Information
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The scan tool displays in lbs. the RR passenger presence sensor weight information.
- Sensor Range Information
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The scan tool displays whether the passenger presence sensor range information is OK or not OK.
- Total Weight Information
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The scan tool displays in lbs. the total passenger presence sensor system weight information.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.