B1019

DTC B1019

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides and overview of each diagnostic category.



DTC Descriptor
DTC B1019 00
- System Configuration Error




Circuit/System Description

The inflatable restraint sensing and diagnostic module (SDM) runs continuous diagnostic tests on the restraints system. When the ignition is turned ON, the SDM will check to see if the correct components are installed for the vehicle configuration. If the SDM detects that there are too few or too many components on the system, DTC B1019 will set.


Conditions for Running the DTC

Ignition voltage is between 9-16 volts.


Conditions for Setting the DTC

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



Action Taken When the DTC Sets

* The SDM commands ON the AIR BAG warning lamp via serial data communications.
* The SDM disables all deployments.



Conditions for Clearing the DTC

* The correct SDM must be installed.
* The correct components must be installed.



Diagnostic Aids

If the SDM has been replaced, make sure that the correct part number was installed for this vehicle.


Reference Information
Schematic Reference

SIR Schematics ([1][2]Air Bag Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

SIR System Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information


Circuit/System Testing

1. With a scan tool verify the BCM is programmed with the correct VIN.

• If not the correct VIN refer to Body Control Module Programming and Setup (Programming and Relearning) for programming.

2. With a scan tool perform the Setup SDM Part Number into BCM procedure.
3. With a scan tool, clear DTCs, cycle the ignition OFF then ON. Verify DTC B1019 is not set.

• If DTC is set, replace the SDM.




Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Control Module References (Programming and Relearning) for SDM replacement, setup, and programming