[Froggy]

I looked at the pinouts for the Matrix's OBD II
both grounds are there, the K and L lines and power are all there. (It also has pins 12 and 13, but not the CAN pins????)

So it 'should' be ISO compliant.

I will check the TX/RX pins...

Edit: the RX and TX pins are correct according to the data sheet for the chip.
I also checked the pin voltage on pin 7 of the OBDII. 4 Volts according to my voltmeter. So it is active.

Edit 2: Just resoldered all the points on the port circuit board. No change. The ISO init still fails.