Hi.
I have an original VCM I. It does not connect to a car at all. IDS works fine, led's do the startup dance and I can connect via ftp. So the pc side works as it should. If i feed can bus signal to the 6 and 14 pins of the obd connector. Echoes the can singnal on practically everywhere on the board close to obd cable connector. Something is shorted but what ? Broken can signal can be found almost every max4662 pins. Some pins has it lover voltage and one or two has it strongly and how it should be. Transistors between max and obd connectors measured correctly.
What to measure next ?
I have an original VCM I. It does not connect to a car at all. IDS works fine, led's do the startup dance and I can connect via ftp. So the pc side works as it should. If i feed can bus signal to the 6 and 14 pins of the obd connector. Echoes the can singnal on practically everywhere on the board close to obd cable connector. Something is shorted but what ? Broken can signal can be found almost every max4662 pins. Some pins has it lover voltage and one or two has it strongly and how it should be. Transistors between max and obd connectors measured correctly.
What to measure next ?