The 2003 Dodge Grand Caravan OBD 2 port is on lower edge of dash above parking brake pedal
Near the left hood hinge, clipped into a protective cover.
Near the left hood hinge, clipped into a protective cover.
The low pressure service port, which is the smaller one.
Yes
The 2006 Dodge Caravan OBD 2 port is under driver side dash lower left instrument panel
There is a service port on the low pressure side hose. It will be comming out of the compressor on the passengers side of the vehicle. Should be sticking upwards, and will be the easy to access one.
The 2003 Dodge Caravan OBD 2 port is on lower edge of dash above parking brake pedal
Look on the line up under the wiper cowl on the firewall.
Center of the van, way up under the wiper cowl on the firewall.
On a 1993 Mercury Grand Marquis ( which is OBD I , EEC IV ) ( there should be an EEC TEST connection in the engine compartrment )
Looking at the engine from the front, its down next to the left radiator fan shroud.