When Monitored and Set Condition:

When Monitored: With ignition on, the ACM monitors the PCI Bus for a message containing an "A" in the 4th position of the VIN. This character identifies the type of safety equipment and should match the VIN. The PCM transmits the VIN every 13.76 seconds.

Set Condition: The code will set, if the ACM detects a Side Impact Airbag Module active on the PCI Bus and the 4th character of the VIN message is not an "A".