Pinpoint Test - DTC: AI
U2300:55, U2300:64
Refer to Wiring Diagrams Cell 46 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
Description | Fault Trigger Conditions | |||
|---|---|---|---|---|
DTC | ||||
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 Continuous Memory Diagnostic Trouble Code (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 Continuous Memory Diagnostic Trouble Code (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
PINPOINT TEST A : U2300:55, U2300:64
WARNING: Do not handle, move or change the original horizontal mounting position of the Restraints Control Module (RCM) while the Restraints Control Module (RCM) is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy® and cause serious personal injury or death.
NOTE: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.