• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides and overview of each diagnostic category. |
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.
Ignition voltage is between 9-16 volts.
• | The SDM was programmed with the wrong options for the vehicle. |
• | The wrong SDM was installed for the content of the vehicle. |
• | The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator. |
• | The SDM disables all deployments. |
• | The correct SDM must be installed. |
• | The correct components must be installed. |
If the SDM has been replaced, make sure that the correct part number was installed for this vehicle.
SIR System Description and Operation
Control Module References for scan tool information
⇒ | If not the correct VIN refer to Body Control Module Programming and Setup. |
⇒ | If the DTC is set, replace the SDM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for SDM replacement, setup, and programming |