B1019

DTC B1019

Diagnostic Instructions

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

Circuit/System Testing

1. With the scan tool, verify that the scan tool BCM VIN information matches the vehicle VIN.

• If the VINs do not match, reprogram the BCM.

2. Perform the SDM Setup SDM Part Number into BCM procedure.
3. With a scan tool, verify that DTC B1019 is not set as current.

• If DTC B1019 is current, replace the SDM.

Repair Instructions

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

* SIR/SRS Wiring Repairs