Mick,

Sorry I can't help. I thought that Steve Brotherton had answered this in your thread.

Arthur,

I already made one and did the test. I used a plastic project box and got fancy with a panel fuseholder and a resistor in series with the LED.

I only got one blink, so there were no codes present. I found three bad vac pods bad under the dash. I wanted to see if there were any other problems, like maybe a bad temp sensor, I wanted to know so that I could replace them while the instrument panel was off.

Have a great day,