B1161

CIRCUIT DESCRIPTION

The Instrument Panel Cluster (IPC) sends a message over Serial Data Line Class 2 to the inflatable restraint Sensing and Diagnostic Module (SDM) if the IPC cannot turn the AIR BAG warning lamp ON or OFF.

CONDITIONS FOR SETTING THE DTC

The SDM receives a message from the IPC that the IPC cannot control the AIR BAG warning lamp. This test is run ASYNCHRONOUSLY during CONTINUOUS MONITORING by the IPC.

ACTION TAKEN WHEN THE DTC SETS

The SDM sets a diagnostic trouble code.

CONDITIONS FOR CLEARING THE DTC

^ Current DTC.
One of the following must occur to clear the DTC:
The ignition switch is turned OFF.
- The SDM receives the IPC message response over Serial Data Line Class 2.
^ History DTC.
- You issue a scan tool CLEAR CODES command.
- 250 malfunction-free ignition cycles have occurred.

DIAGNOSTIC AIDS

It is extremely unlikely that the SDM is malfunctioning if DTC B1161 is set. A malfunctioning IPC is the most likely cause of this DTC.