I'm currently testing an MC43 on our HIL bench and notice some issue with the low side driver at startup.
On our system, all the low side driver of the MC43 at pulled up to supply voltage with a 10K pull up resistor.
The problem is that when we switch on the ECU, it's going into error with the code 4:2.
We find out that by waiting 1.5 sec at startup before pulling up the low side driver fix the problem.
The problem is that on the vehicle we will probably end up in this situation as some low side driver are going to be pulled up throw some relay coil.
Is the unit is going into error if any low side driver is pulled up or only some of them trigger it ?
Thanks for your support,
Customer support service by UserEcho