2010 Cadillac CTS Sedan AWD V6-3.6L Page 289

2010 Cadillac CTS Sedan AWD V6-3.6L Page 289

Supplemental Inflatable Restraints

DTC B1019

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 B1019 00

- SDM System Configuration Error

DTC B1019 3A

- SDM System Configuration Error Incorrect Component Installed

Circuit/System Description

The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system (PPS) has enabled or disabled the I/P

inflator module. When the ignition is turned ON, the ignition voltage is supplied to the passenger air bag ON/OFF indicators and to the PPS

module. The instrument panel cluster (IPC) grounds all indicator control circuits to the passenger air bag ON/OFF indicators for illumination.

The serial data messages sent from the supplemental inflatable restraints system to the radio, serving as a gateway, transmitting the information to

the IPC to control the indicators as necessary.

After the SDM is programmed, the SDM setup procedure is required. During this set up procedure, the SDM will compare the content that was just

programmed to the actual components that are installed on the vehicle. If the SDM detects that there are too few or too many components on the

system, DTC B1019 00 will set and not allow the setup procedure to complete.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

B1019 00

* The SDM was programmed with the wrong options for the vehicle.

* The wrong components were installed for the content of the vehicle.

* SDM connector may have bent pins or shorting bars causing the SDM to learn deployment loops that are not actually present.

B1019 3A

* The vehicle was configured for PPS but the SDM does not detect that the PPS indicator is present due to loss of power at indicator.

* The vehicle is not configured for PPS and the SDM detects that the PPS indicator is present.

Action Taken When the DTC Sets

* The SDM commands the AIR BAG indicator ON.

* The SDM disables all deployments when B1019 00 DTC is set as current.

Conditions for Clearing the DTC

* The correct SDM must be installed.

* The correct components must be installed.

* The PPS indicator operates as indicated in the SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag

Systems/Description and Operation/SIR System Description and Operation).

Diagnostic Aids

If the SDM has been replaced, make sure that the correct part number was installed for this vehicle. If after programming the SDM DTC B1019 00

sets as current, check for bent pins or shorting bars at the SDM connector.