Well, short of posting many pages of diagrams, I just looked at them and copied down the info. Hopefully I didn't miss anything. In all cases except those involving numbers, the slash means "and."
16 underhood lamp/TCM (4.0L0
17 Upstream and downstream O2 sensor relays
18 fuel injectors/rail coil/ign. coil
19 headlamp switch/data connector
20 combo. flasher
21 PCM/O2 sensors 1/1 upstream and 1/2 downstream
22 fuel relay pump/PCM
23 brake lamp switch/ABS controller
24 PCM
25 fog lamp relay
26 stereo amp.
27 sentry key immobilizer
There is no mention of O2 sensors 2/1 upstream or 2/2 downstream as far as the PDC is concerned. In subsequent diagrams, they look to be connected directly to 1/1 and 1/2, but don't quote me on that, please.