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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Supplemental Inflatable Restraint System >> Diagnostic Information and Procedures >> Scan Tool Data Definitions >> Passenger Presence System scan tool data definitions

Passenger Presence System scan tool data definitions

Battery Voltage Signal

The scan tool displays 0-20 volts. This is the system voltage measured by the PPS module between the battery input and ground.

Power Mode

The scan tool displays the current power mode.

PPS Fault Status

The scan tool displays the current condition of the PPS system to determine if the SDM or PPS is causing the PPS Disabled condition.

SDM Enable Status

The scan tool displays the current status of the PPS system within the SDM. When disabled, SDM will default to deactivate the deployment loops related to the passenger airbags. PPS Fault Status and SDM Fault status should match.

PPS Enable Status

The scan tool displays the current status of the PPS system. This information is sent to the SDM for deactivation of the deployment loops related to the passenger airbags. PPS Enable Status and SDM Enable status should match.

Passenger Classification

The scan tool displays the calculated seat occupant status or need to re-zero.

Passenger Status

The scan tool displays the calculated seat occupant status including relationship to seat position.

Pressure Sensor

The scan tool displays the voltage determined by the weight/position of the seat occupant.

Seat Belt Tension Sensor

The scan tool displays voltage which is used to determine whether a child infant seat is mounted in the passenger seat or not.

Primary Key Status

The scan tool displays the status of the primary key based on the comparison between the BCM and the PPS. If the Status is other than Valid the PPS will not allow activation and should set a DTC.

PPS Primary Key

The scan tool displays primary key that the PPS has stored to memory.

Received Primary Key

The scan tool displays what the PPS received from the BCM as the primary key. The PPS then compares it to what it has stored to determine the Primary Key Status. The PPS Primary Key and Received Primary Key should match.