Challenger V6-3.5L (2009)
The CAN bus is a high-speed communication bus that allows real time control capability between various controllers. Most messages are sent every 20
milliseconds. This means critical information can be shared between the transmission, engine, and ABS controllers. The CAN bus is a two wire bus with
a CAN Bus (+) circuit and a CAN Bus (-) circuit. These circuits are twisted pairs in the harness to reduce the potential of radio and noise interference.
The transmission control system automatically adapts to changes in engine performance, vehicle speed, and transmission temperature variations to
provide consistent shift quality. The control system ensures that clutch operation during up-shifting and downshifting is more responsive without
increased harshness. The TCM activates the solenoid valves and moves valves in the valve body to achieve the necessary gear changes. The required
pressure level is calculated from the load condition, engine speed. Vehicle speed (from ABS module) and transmission oil temperature, matched to the
torque to be transmitted. The TCM is located under the left side of the instrument panel for left hand drive vehicles. For right hand drive vehicles, the
TCM is located in the mirrored location under the right side of the instrument panel.
