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Navigation: MTune Settings > PDM

PDM Output default states

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Output default states

 

PDM function to change (or keep) current state of a certain output during a CAN failure.

Can for example be used to force an engine FAN PDM output to ON when there is a CAN failure, to prevent engine overheating.

 

 

Example

 

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In the above example, if an CAN communication is lost, the PDM output 3 is turned ON, and will continue to be ON untill the communication is up again.

 

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Force off is needed when an output is set to --ON-- during CAN-errors. In the above example, output 5 will be turned ON during a CAN-error event and will only be turned off when the PDM input ignition on gets active.

Note: Force off can also be used to turn of user output functions when ignition switch is turned off.