The inflatable restraint sensing and diagnostic module (SDM) runs continuous diagnostic tests on the 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. If the SDM has been replaced, make sure that the correct part number was installed for this vehicle.
This diagnostic procedure supports the following DTC:
DTC B1019 System Configuration Error
DTC Symptom | DTC Symptom Descriptor |
---|---|
00 | System Configuration Error |
Ignition voltage is within the normal operating voltage range.
• | The SDM was programmed with the wrong options for the vehicle. |
• | The wrong SDM was installed for the content of the vehicle. |
• | The SDM commands ON the AIR BAG warning lamp via GMLAN serial data. |
• | The SDM disables all deployments. |
• | The correct SDM must be installed. |
• | The correct components must be installed. |
This DTC is an indication that an incorrect SDM is installed in the vehicle.
The numbers below refer to the step numbers on the diagnostic table.
This test checks for current SDM DTCs.
This test checks to see if the correct vehicle identification number (VIN) is programmed in the body control module (BCM).
This step explains that the BCM must be programmed.
This test checks to see if after clearing the DTCs, if this DTC is current then it is possible that the wrong SDM has been installed.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: SIR Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Important: The EL-39021-460 CANdi module must be used with the Tech 2. Does the scan tool indicate that DTC B1019 is current? | Go to Step 3 | Go to Step 8 | |
With the scan tool, verify that the body control module (BCM) is programmed with the correct vehicle identification number (VIN) that is stored in the BCM to the VIN plate of the vehicle. Is the BCM programmed with the correct VIN? | Go to Step 5 | Go to Step 4 | |
Use the scan tool to program the correct VIN into the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration . Did you complete the reprogramming procedure? | Go to Step 5 | -- | |
5 | Using the scan tool, perform the Setup SDM Part Number into BCM under Computer/Integrating Systems special functions. Did you complete the reprogramming procedure? | Go to Step 6 | -- |
Does the scan tool indicate that this DTC is current? | Go to Step 7 | Go to Step 8 | |
7 | Replace the inflatable restraint sensing and diagnostic module (SDM). Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 8 | -- |
8 |
Does the DTC reset? | Go to Step 2 | System OK |