Two wire ALDL interface?

[ExEspirit]

I have a two wire ALDL USB interface cable for an OBDI GM. I was told that this would work with my M100. I assume that pin A is ground. Do I connect the data line to pin H? Thanks, Bruce in Las Vegas

[rip]

Geoffsmith would know. I've not seen him on here for a while but he is usually never far away.

[tigerdog]

Try looking here and here. I believe the Elan uses the same connector as the Opel listed in the 2nd diagram. I've just checked my cable: 3 wires, pins A, F and G. I hope this helps.

[GeoffSmith]

Should work as OBD1 is a 'standard' format. Pin A is ground, pin F is ALDL line (pulled to 5V via 10kohm) and pin G is 5V supply. As TD says, the Opel 10 pin diagram is correct and if you're lucky and have good eyesight, the pins will be marked on the connector.