ALDL connector?

My scanner will not connect to PCM. No power to plug. Need diagram of data link connector and what wire is the hot wire from the PCM?

All fuses are good.I must have a broken wire some where. That is why I need a diagram.

Thanks a lot it is just what I needed.

What should voltage be on the connector?

Thanks on the same car the dimmer switch in the dash for instrument cluster has no power which wire is the hot wire? I have a white yellow green black.

I am tring to have codes read and the obd plug is not working. The code reader works fine on other cars but wont on mine? Checked fuses

If you can, try using another scanner. You have to have a 12 V power source at that plug and communication. If you have 12 V and a good fuse then you have a communication issue with the ECM, it could be the ECM that's the problem. Make sure that the fuse is actually good, don't just look at it exchange it for a known good one or replace it with a new one if you're in doubt. Sometimes a bad fuse will look good

Car has Brand NEW Battery it will run, you can drive it, all the electrical componets work far as I can tell had the CHECK GAUGES and ABS warning light come on and it went off byitself I pluged my code scanner in to find out why and it said "(no power from vehicle)" checked fuses all fuses in fuse box under dash or good unpluged and plug back in the BCM and also unhooked both negative and positive battery cables and let sit for a lil bit then hooked them back up and got same message on code scanner.

I have a Snap-on solus pro scanner and it want read the data in the OBD-1 what would make it not read the data?