AUTOMATIC TRANSMISSION – ZF 5HP24 DESCRIPTION AND OPERATION 44-2-49 Controller Area Network (CAN) The CAN is a high speed broadcast bus network connected between the following electronic units: l EAT ECU l ECM l Transfer box ECU l Air suspension ECU l Instrument pack l ABS ECU l Steering angle ECU. The CAN allows fast exchange of data between ECU's. The CAN comprises two wires which are identified as CAN high (Hand CAN low (L. The two wires are coloured yellow/black (Hand yellow/brown (Land are twisted together to minimise electromagnetic interference (noise) produced by the CAN messages + COMMUNICATION DATA BUSES, DESCRIPTION AND OPERATION, Description. In the event of a CAN failure, the following symptoms maybe observed: l Transmission operates in default model Torque converter lockup control is disabled l ECM to EAT ECU engine torque reduction message inoperative l Gear position display in instrument pack inoperative.
AUTOMATIC TRANSMISSION – ZF HP 44-2-50 DESCRIPTION AND OPERATION