When you first turn ON the ignition, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. The SDM provides input power to the inflatable restraint side impact sensor (SIS). When input power is first detected, the SIS responds by performing internal diagnostics. Next the SIS sends an ID message to the SDM. The SDM will consider this to be a valid ID if the response time is less than 5 seconds after the SIS is powered up.The SIS will continually communicate a status message to the SDM. The SDM can reset the SIS by removing and applying power to it.
• | Ignition 1 voltage is within the normal operating voltage range. |
• | The SDM monitors the inflatable restraint side impact sensor loop with the power on. |
The SDM has received a NOK (not OK) message from the SIS.
The SDM commands ON the AIR BAG warning lamp via Class 2 serial data.
• | You can issue a clear codes command. However, the DTC will appear again in the next ignition cycle. |
• | Replace the inflatable restraint side impact sensor (SIS). |
DTC B0080 is an indication of an internal failure within the SIS.
The following numbers refer to the step numbers in the diagnostic table:
Step | Action | Value(s) | Yes | No |
---|---|---|---|---|
1 | Did you perform the SIR Diagnostic System Check? | -- | Go to Step 2 | |
Does the scan tool indicate that this DTC is current? | -- | Go to Step 3 | Go to Diagnostic Aids | |
3 | Replace the inflatable restraint side impact sensor (SIS). Refer to Inflatable Restraint Side Impact Sensor Replacement Did you complete the replacement? | -- | Go to Step 4 | -- |
4 |
Did you complete the action? | -- | -- |