U2300:55, U2300:64: Notes

Refer to SUPPLEMENTAL RESTRAINT SYSTEM for schematic and connector information.

NOTE: DTC U2300:55 is set in every new RCM that has not previously been installed or that has previously been installed but has not yet successfully received configuration data messages from the BCM. DO NOT replace any components for this DTC unless directed to do so by the following pinpoint test.

Normal Operation and Fault Conditions

The RCM receives a configuration data message from the BCM when the RCM proves out during the very first ignition cycle after it is installed. During prove-out at the beginning of each subsequent ignition cycle, the BCM sends configuration data to the RCM and the RCM compares the message to the message that was received during the very first ignition cycle.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
U2300:55	Central Configuration: Not Configured	This DTC is present in every new RCM. Once the new RCM is installed and it successfully receives a configuration data message from the BCM, this DTC reports as a CMDTC. If the RCM reports this DTC on-demand, it means that the configuration data message has not been received from the BCM.
U2300:64	Central Configuration: Signal Plausibility Failure	If the RCM receives a configuration data message that does not match the configuration data that was previously received and stored, it sets this DTC. This DTC can set on-demand during the RCM prove-out, but change to a CMDTC later on in the ignition cycle if the correct message is eventually received. If PMI has not been carried out for the BCM, this DTC sets.

Possible Sources

RCM or BCM configuration
BCM
RCM