99 dodge caravan need a wirring diagram for the data link connector. have no communication to the scanner.
Below is wiring diagram for computer data lines, including the DLC:
this diagram helped me but i still need to know what voltage comes out of pin 16 and pin 3 and pin 7 wich all look to be +, The problem I am having is no communication to engine and abs. I do have communication with the body control module, The type of scanner I am using is a snap on modis
all you initially asked for was a wiring diagram, which I provided.
Pin 16 is battery voltage
pin 3 is CCD Bus voltage
pin 7 is SCI transmit
Here is ABS test for no communication:
The no comuunication test for PCM/ECM is longer, so I put it in pdf file format(adobe reader)
Click to open and download> NO COMMUNICATION TEST
Automotive Repair Shop Manager, Technician