Circuit Description
When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform a turn-on test to diagnose critical malfunctions within the SDM itself.
If the SDM has been used 5 times for 5 explosions of belt pretensioners or side impact modules, the SDM should also be replaced.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC 038
Conditions for Running the DTC
Ignition voltage is within the normal operating voltage range.
Conditions for Setting the DTC
The count of the belt pretensioner and side impact module explosion is over 5 in the SDM.
Action Taken When the DTC Sets
The SDM commands the AIR BAG indicator ON.
Conditions for Clearing the DTC
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Step | Action | Yes | No |
|---|---|---|---|
|
Warning: Refer to Sensing and Diagnostic Module Voltage after Ignition is Turned Off Warning in the Preface section. Warning: Refer to Sensing and Diagnostic Module Handling Warning in the Preface section. Schematic Reference: SIR Schematics Connector End View Reference: Component Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Is there any visible damage to the SIR harness? | 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 repair? | Go to Step 5 | -- |
4 | Replace the SIR wiring harness. Did you complete the repair? | Go to Step 5 | -- |
5 |
Does the DTC reset? | Go to Step 2 | System OK |
