OBD II UART init problem

[tglenis]

Hi

Sorry for the inconvenience and my bad English
I just bought a freematics OBD II UART adapter and i cant make connection
to the car. (Nissan 1.6 2008 gas CAN 11bit 500kb)
I use a arduino mega ADK r3.
When i connect the cable to the car starts to
blink from blue to red and nothing happens.
I use the rpm_led_uart example (compiled and uploaded ok) and the latest libraries

the connections for the adapter to arduino are
RED –> 5V (on the power pins )
BLACK -> GND (om the power pins)
WHITE -> TX1 (pin 18 on the Mega ADK)
YELLOW ->RX1 (pin 19 on the Mega ADK)

I'll be greatful if you could help me.

Thanks

[stanley]

Try enable debug (check OBD.h) and see serial output from your MEGA.