Quote:
Originally Posted by TomM
This might be a clue......
You need to constant hot to the PCM, fused from the battery. The you need your keyed hot(which you have already verified). Once you plug in your scanner and turn the key, you should be able to connect to your PCM. If not, either the OBD connector is not wired correctly, or you don't have computer power, i.e., computer not booting up.
Your OBD connector should have a hot wire from the keyed hot and then a ground. The other wire goes to the PCM. You can check the pin with a volt meter once you turn the key on and see if there is power at the OBD connector.
That is what I would check first.
T,
|
That is why I asked if the other relay 'clicks'. It is possible the feed to one of the terminals from the back has come loose (possibly at 85). Also possible but rare is a bad relay. This connection is made by the end user with a provided female terminal.
See pages 13 & 14 here for some specific info:
http://www.psiconversion.com/tech_ar...structions.pdf