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.
In case of driver side air bag inflation by side impact, the SDM maintains the warning lamp ON. All the air bag systems, including the pretensioners, the side air bag sensor, and the wiring should be replaced. If the driver side air bag inflation by side impact counts over 5, the SDM should also be replaced.
Conditions for Setting the DTC
The history of air bag inflation or belt pretensioner explosion is in the SDM.
Step | Action | Yes | No |
|---|---|---|---|
|
Caution: Refer to Sensing and Diagnostic Module Voltage after Ignition is Turned Off Caution in the Preface section. Caution: Refer to Sensing and Diagnostic Module Handling Caution in the Preface section. | |||
1 | Perform the Diagnostic System Check - SIR. Is the Diagnostic System Check - SIR complete? | Go to Step 2 | |
2 |
Is there any visible damage to the SIR harness? | Go to Step 4 | Go to Step 3 |
3 |
Is the repair complete? | -- | |
4 |
Is the repair complete? | -- | |
