GM Service Manual Online
For 1990-2009 cars only

Passenger Presence System Scan Tool Data Parameters

Parameter

Operating Conditions

Expected Value

Definition

Ignition is ON, engine OFF, and vehicle is stationary

Battery Voltage

--

Volts

This is the voltage input supplied to the passenger presence system.

Power Mode

--

OFF

The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch.

Run

Accessory

Crank Request

PPS Fault Status

--

No Fault

The scan tool displays No Fault, Plant Mode, Fault, Mismatch or Barrier. This is the status of the PPS Fault monitor.

PPS Enable Status

--

Enabled

The scan tool displays Disabled or Enabled. This is the status of the PPS Enable.

Disabled

Passenger Status

--

Valid

The scan tool displays No Info, Valid, Invalid Class, Invalid Pos, Invalid Data or Inval Class & Pos.

Passenger Classification

 

Empty

The scan tool displays Empty , Small , Large . This is the state of the passenger seat, as monitored by the passenger presence system.

SDM Enable Status

 

Enabled

The scan tool displays Enabled or Disabled. This is the state of the SDM.

Primary Key Status

 

Valid

The scan tool displays Unknown, Valid or Invalid. This is the state of the primary key.

Received Primary Key

 

0

The scan tool displays the primary key received