2010 Cadillac Truck Escalade AWD V8-6.2L Page 198
instrument panel (I/P) module and then illuminate the AIR BAG indicator.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
* The PPS detects the voltage at the PPS sensor signal is less than 0.5 volt or greater than 4.5 volts for 500 milliseconds.
* The PPS detects the voltage at the PPS sensor 5 volt reference is less than 4.5 volts or greater than 9.1 volts for 500 milliseconds.
* The PPS detects the amperage at the PPS sensor low reference is 25 mA or greater for 500 milliseconds.
Action Taken When the DTC Sets
* The PPS will set a DTC, and then communicate with the SDM.
* The SDM disables the I/P module deployment loop.
* The PPS will illuminate the passenger air bag status OFF indicator.
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
Conditions for Clearing the DTC
* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Reference Information
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
Important:
* The PPS pressure sensor is not serviced separately. The PPS replacement with the PPS pressure sensor must be serviced as a
complete unit.
* When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or
replacement of the affected component/connector:
- PPS pressure sensor
- PPS module
- PPS pressure sensor wiring harness connector
- PPS module wiring harness connector
1. Ignition OFF, disconnect the harness connector at the PPS pressure sensor and inspect the component and harness sides for damage or
corrosion.
锟斤拷If damage or corrosion is found, repair or replace as necessary.
2. Ignition ON, test for 4.5-5.5 volts between the voltage reference circuit terminal A and ground.
锟斤拷If less that the specified range, test the voltage reference circuit for open/high resistance or a short to ground. If the circuit tests normal,
replace the PPS.
锟斤拷If greater that the specified range, test the voltage reference circuit for a short to voltage. If the circuit tests normal, replace the PPS.
Important: The AIR BAG BATT Fuse that supplies B+ voltage must be removed to ensure the PPS module is inactive. An active PPS
