The TIM

The TIM (Transmission Identification Module) is an extra storage module that is installed in the transmission and not in the transmission controller. It represents the electronic nameplate of a DIWA transmission and contains information on the transmission design. TIM data are essential for the correct functioning of the transmission software. TIM data are entered when the transmission is manufactured and must never be changed, except for major transmission conversions. TIM data are available in DIWA.5 and DIWA.6.

The communication between ALADIN and the TIM basically takes place via the transmission controller and is processed in several steps. If data are to be stored in the TIM, the complete data are first sent from ALADIN to the transmission controller. In the second step, the transmission controller passes the data on to the TIM. This write operation takes maximum 10 seconds. As the TIM is placed directly in the transmission, there are various safety measures such as "Switch off at over-temperature". Consequentially, communication between the TIM und transmission controller cannot be guaranteed at all times.   

In order to check that the write operation to the TIM was successful, the TIM data must be read out to ALADIN again. The transmission controller reads the TIM data automatically, but only when the system is started. That is why the ignition must be switched OFF and ON again. The current TIM data can now be loaded to ALADIN in the fourth step.

In the event of a faulty TIM, the transmission controller always uses the TIM data that were last read out from the TIM.

The TIM is installed next to the speed sensors N2 and N3 on the transmission housing.

The TIM is connected to the transmission controller by two cables.