For 1990-2009 cars only
Circuit Description
In the RUN position, the ignition switch applies battery voltage to the AIR BAG warning lamp and to the IGNITION 1 input terminal 10. The inflatable restraint Sensing and Diagnostic Module (SDM) responds by flashing the AIR BAG warning lamp 7 times. The SDM monitors the lamp driver output by comparing the output state at the INFLATABLE RESTRAINT INDICATOR terminal 7 to the microprocessor commanded state.
Conditions for Setting the DTC
| • | The output state at the INFLATABLE RESTRAINT INDICATOR terminal 7 does not match the commanded state of the lamp driver for 400 milliseconds. |
| • | The CONTINUOUS MONITORING test checks for this DTC. This test occurs when IGNITION 1 is within the normal operating voltage range. |
Action Taken When the DTC Sets
| • | The SDM sets a Diagnostic Trouble Code. |
| • | The SDM attempts to turn ON the AIR BAG warning lamp. |
Conditions for Clearing the MIL/DTC
| • | Current DTC |
| The output state at the INFLATABLE RESTRAINT INDICATOR terminal 7 matches the commanded state of the lamp driver for 400 milliseconds. |
| • | History DTC |
| - | You issue a scan tool CLEAR CODES command. |
| - | Once 250 malfunction free ignition cycles have occurred. |
Diagnostic Aids
Refer to AIR BAG Warning Lamp Comes On Steady and AIR BAG Warning Lamp Does Not Come On in order to diagnose warning lamp circuit malfunctions.
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Was the SIR Diagnostic System Check performed? | -- | ||||||
2 |
Is DTC B1061 set? | -- | Go to Integrity Check |
