Normal Operation

The transmission control module (TCM) communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits (W/L) (HS-CAN +) and (W) (HS-CAN -) provide the network connection to the TCM. The TCM shares the HS-CAN network with the PCM, the ABS module, the power steering control module (PSCM), the restraints control module (RCM), the occupant classification sensor module and the instrument cluster (IC). Voltage for the TCM is provided by circuits (G/BR) and (V/R). Ground is provided by circuit (B/Y).