Identification of the damper motor module (DMM), LIN bus 1, status
The parameter indicates the status after identification of the damper motors.
Temporary ID not OK = the climate control module (CCM) has been unable to allocate the damper motors a temporary ID during identification.
Defroster not OK = failed identification of the damper motor module (DMM) defroster.
Recirculation not OK = failed identification of the damper motor module (DMM) recirculation.
Temperature left not OK = failed identification of the damper motor module (DMM) temperature left.
Temperature right not OK = failed identification of the damper motor module (DMM) temperature right.
Air distribution not OK = failed identification of the damper motor module (DMM) air distribution.
OK = identification OK.
Identification of the damper motor module (DMM), LIN bus 2
The parameter indicates the status after identification of the damper motors.
Temporary ID not OK = the climate control module (CCM) has been unable to allocate the damper motors a temporary ID during identification.
Defroster not OK = failed identification of the damper motor module (DMM) defroster.
Recirculation not OK = failed identification of the damper motor module (DMM) recirculation.
Temperature left not OK = failed identification of the damper motor module (DMM) temperature left.
Temperature right not OK = failed identification of the damper motor module (DMM) temperature right.
Air distribution not OK = failed identification of the damper motor module (DMM) air distribution.
OK = identification OK.
Description of parameters
Note. The parameters that can be read off for the steering wheel module display how the steering wheel module interprets the position on the buttons and control stalks. In the event of a fault in the buttons or the wiring, the status will be constantly On or Off depending on the position on the buttons and control stalks.
Reading off control module identification
VIDA identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N
- P/N slave nodes (inclination sensor module (ISM))
- CAN frame period (40 ms for the CAN low-speed network at time of writing)
- Subcontractor identification plate (ECU-ID).
Scheme 393
All control modules' diagnostics require that some form of driving cycle or operation cycle is run for diagnostics to be considered as complete. The terms driving cycle or operation cycle appear, these mean the same, they are only different designations.
Example
The illustration above shows an example of a driving cycle or operation cycle. The vehicle is started and driven (Start) , is stopped sometime and the ignition is turned off (Stop) . When the ignition is turned on again (Start) a new driving cycle starts.
A new driving cycle or operation cycle usually starts every time the ignition is turned on, which means that you should turn on the ignition, turn off the ignition, and then turn on the ignition again.
However, the condition varies from control module to control module, there are also, e. g., speed and temperature conditions, before a driving cycle or operation cycle is considered to be complete.
When a malfunction is detected and then is confirmed as a real malfunction and is stored, various counters are also stored, indicating how frequent the malfunction is. These counters use driving cycles or operation cycles as basis for updating the counters' values.
For information on counters, see Counters further on in the document.