SDM Integrity Check
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1998 GMC Yukon, 1998 GMC Suburban, 1998 GMC Pickup, 1998 GMC Cab & Chassis, and 1998 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
SDM Integrity Check
| Step | Action | Value(s) | Yes | No |
| 1 | Were you sent here from a symptom table or a Diagnostic Trouble Code (DTC) table? | - | Go to Step 2 | Go to SIR DIAGNOSTIC SYSTEM CHECK |
| 2 |
Does the AIR BAG warning lamp flash seven times then go OFF? |
- | Go to Step 7 | Go to Step 3 |
| 3 |
Using the scan tool, request the SIR DTC display. Is the same symptom or DTC occurring as when the SIR Diagnostic System Check was first performed? |
- | Go to Step 4 | Go to the appropriate DTC table |
| 4 |
Does the AIR BAG warning lamp flash seven times then go OFF? |
- | System OK | Go to Step 5 |
| 5 |
Has the SDM been replaced? |
- | Go to Step 6 | - |
| 6 |
Reconnect all the SIR system components, make sure all the components are properly mounted. Have all the SIR components been reconnected and properly mounted? |
- | Go to SIR DIAGNOSTIC SYSTEM CHECK | - |
| 7 |
Clear the SIR DTCs Have the SIR DTCs been cleared |
- | Go to SIR DIAGNOSTIC SYSTEM CHECK | - |