asked on How clearing of Diagnostic Trouble Codes(DTC) or Fault Codes work in typical embedded systems ?
Let's say application is Third Row Power Folding Minivan seat. User presses a button. Seat starts moving. There is a obstruction which causes DC motor moving the seat to stop turning almost immediately. Embedded controller attached to seat detects a motor stall or block. It activates a fault code. What happens next?
Probably embedded software application won't allow seat to move because there is a fault. How does the DTC clear and what triggers the seat movement again? Usually fault codes are uploaded to CAN based tool. Service Technician sees active DTC. It removes the obstruction. Then, how does the fault code clear? What sequence of steps take place to restore movement of seat?
Probably embedded software application won't allow seat to move because there is a fault. How does the DTC clear and what triggers the seat movement again? Usually fault codes are uploaded to CAN based tool. Service Technician sees active DTC. It removes the obstruction. Then, how does the fault code clear? What sequence of steps take place to restore movement of seat?
AutomotiveC
Last Comment
Michael Best
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Sorry to consider your question as an exam question !
It was something that, I as a teacher would have asked...
My solution is however viable... without further input I can only guess.
Regards,
Michael
It was something that, I as a teacher would have asked...
My solution is however viable... without further input I can only guess.
Regards,
Michael
The Service Technician must clear the fault code.
Removal of the battery + teminal cable for some time should also allow reset.
Removal of the battery + teminal cable for some time should also allow reset.
Does Service Technician control clearing of fault code? Another words, once service technician clears the fault code from CAN based service tool, does embedded software application controlling seat movement automatically deactivates the fault?