[macNB]

No mate
I wanted to say that Atmega pins 1,2 and 3 are connected to MCP2515 anything there.

yes I understood you. I checked that ATmega162 pin 1 is connected to mcp2515 pin 14, Pin 2 to pin 15 and pin 3 to pin 13. And that there are no problems with the connections. I checked them because I thought I might have shorted one of the pins. But that cannot be the case because the flash programming was fine.

Maybe it hapend But if you want my opinion i suppose that the TJA1050 is defective usually.
Vary rare MCP2515 is defective
And all of this only because the car and from time to time because the poor factory quality
As i told you a HQ clone it has a TVS diode on CAN BUS for protection
Good luck

OK I found someone local who can supply MCP2551 which I believe is compatible with TJA1050. Do you know if they are oK ?