2010 Cadillac Truck SRX FWD V6-3.0L Page 163

2010 Cadillac Truck SRX FWD V6-3.0L Page 163

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B0081 00

- Passenger Presence Module Malfunction

DTC B0081 3A

- Passenger Presence Module Incorrect Component Installed

Circuit/System Description

When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) and the passenger presence module perform tests to

diagnose critical malfunctions. Upon a successful power-up mode the SDM will illuminate both PASSENGER AIRBAG ON/OFF indicators. If the

SDM detects a fault in the passenger presence module, it may disable the passenger instrument panel air bag deployment loop, set DTC B0081 00

or DTC B0081 3A and illuminate the AIRBAG indicator.

Conditions for Running the DTC

Ignition voltage is between 9-16 V.

Conditions for Setting the DTC

B0081 00

The SDM has received a fault present message from the passenger presence module.

B0081 3A

The SDM has received a message from the passenger presence module indicating a vehicle and passenger presence module mismatch.

Action Taken When the DTC Sets

* The SDM requests the instrument cluster to illuminate the AIR BAG indicator.

* The passenger instrument panel air bag deployment loop will be disabled.

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.

Diagnostic Aids

* If either the SDM or PPS module were replaced verify that the correct part numbers were used for the vehicle application.

* If this DTC is set as either current or history it may have been caused by an electronic device. If an electronic device (Computers, MP3

Players, Cell Phones, Diagnostic Scan Tool, etc.) was placed on the passenger seat the passenger presence module may command the

passenger air bag indicator to turn on and/or command the passenger seat belt indicator to turn on. Make sure there are no objects on the

passenger seat and clear the DTCs. If this DTC resets then perform this diagnostic. If the DTC does not reset there is no further work needed

on the passenger presence system.

Reference Information

Schematic Reference

SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System)

Electrical Information Reference