Restraint Control Module (RCM)
WARNING: This page is about a different car, the 2005 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
The RCM is on the international standards organization (ISO) 9141 network. The RCM controls the deployment of the air bags based on sensor input. The ISO communication network will not function if the wire is shorted to ground or battery voltage. Check the network circuit between the RCM C310a and the DLC D-01. Total resistance value must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open circuit in the ISO network, damage to the DLC D-01, damage to the RCM C310a, or a problem in the in-line connector. See AIR BAG AND SAFETY BELT PRETENSIONER SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .