Circuit Description
When the ignition is turned ON, the inflatable restraint sensing and diagnostic (SDM) performs continuous diagnostic tests to check for proper circuit continuity and for shorts to ground or voltage. During one portion of these tests, the SDM checks to ensure that it is properly configured for this vehicle. If a malfunction is detected, the SDM will store a diagnostic trouble code (DTC).
Conditions for Running the DTC
Ignition 1 voltage is within the normal operating voltage range.
Conditions for Setting the DTC
The SDM is not properly configured for this vehicle.
Action Taken When the DTC Sets
The SDM turns the AIR BAG indicator ON.
Conditions for Clearing the DTC
You can use the scan tool to properly configure the SDM. Once the SDM is properly configured, the DTC will clear.
Diagnostic Aids
DTC 53 indicates that the SDM is not configured for use in this vehicle.
Test Description
The numbers below refer to step numbers on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: SIR Schematics | |||
1 | Did you perform A Diagnostic System Check - SIR? | Go to Step 2 | |
Does the scan tool indicate SDM Not Config.? | Go to Step 4 | Go to Step 3 | |
3 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? | Go to Step 5 | -- |
4 |
Did you complete the procedure? | Go to Step 5 | -- |
5 |
Does the DTC reset? | Go to Step 2 | System OK |
