Day 3 continues with the wiring. I was going to town sorting out all of the fun stuff when I discovered the harness I had didn't match up to the transmission plugs and a few of the engine plugs. So, I scrapped it and started over. Before I started this endevor, I had contacted Evan at Backwoods Offroad since he has done many of these swaps. I had asked if the 98 Dodge pcm would communicate with the 2000 Jeep instrument cluster. This was before I had both shop manuals and determined that Yes they will talk just fine. He refused to give any "free" advice. So, for anyone searching for schematics or wondering what had to be done, here is all of my wiring changes. Altough these may be the same for more than the years of hardware I am using, use caution and double check all connections!
C103 Black Firewall Connector
1 OR/DG O2 Sensor ----- Splice to OR/DG of Dodge Harness
2 DG/OR Alternator-PCM ----- Splice into DG/OR of Dodge Harness
3 RD/WT PDC-PCM Power ----- Splice to RD/WT of Dodge Harness PCM C1 22
4 Not Used
5 Not Used
6 DB/LG Fuel Level Sensor ----- Unchanged
7 DG/WT Fuel Pump Power Relay ----- Unchanged
8 BR/YL Speed Sensor Ground-PCM ----- Unchanged
9 RD/LG
10 BK/TN PCM-ADLD ----- Unchanged
11 BK/LB PCM-ADLD ----- Unchanged
12 WT/OR Speed Sensor ----- Splice to WT/OR of Dodge Harness PCM C2 27
13 BK/RD Transfer Case Indicator-Instrument Panel ----- Unchanged
14 DB/BK A/C Clutch-Compressor Clutch Relay in PDC ----- Splice to DB/BK (a/c clutch) of Dodge Harness
C104 Gray Firewall Connector
1 LG A/C High Pressure Switch -----LG/WT (a/c high pressure switch) of Dodge Harness
2 DB/WT A/C Low Pressure Switch
3 Not Used
4 Not Used
5 BR/LB PDC Starter Relay Ground-PCM ----- Splice to BK/WT of Dodge Harness PCM C1 6
6 Not Used
7 Not Used
8 Not Used
9 VT/BK
10 VT/WT Neutral Safety/Backup light Power ----- Splice to BR/LG of Dodge Transmission Harness
11 DG/LG Injector/coil Power
12 BR PDC Starter Relay-Starter ------- Spliced on Starter Wire From Dodge
13 DB PCM-Fuse Block ----- Splice to LG/BK of Dodge Harness PCM C1 2
14 Not Used
*VT/BK wire from Dodge transmission harness is for backup lights. I have added auxiliary backup lights so I spliced this into the relay for them.
C1 4 I had to y splice the BR/YL from the speed sensor into the BR/YL sensor ground of the Dodge harness since I made a stand alone speed sensor/fuel pump/transfer case harness
C1 31,32 BK/TN of Dodge harness must be y spliced into BK/TN of original Jeep harness.
C2 31 I had to y splice the VI/OR from the speed sensor into the OR 5v ref of the Dodge harness since I made a stand-alone speed sensor/fuel pump/transfer case harness.
Transmission control relay (Colors are for my relay plug reference only)
30 ----- BR/OR ----- Battery
85 ----- YL -----PK/BK PCM C2 30
86 ----- VI/OR ----- DG/LG from Alternator
87 ----- PI/WT ----- transmission plug pin 1
Cooling fan relay
A/C System
DB/BK from Dodge compressor to DB/BK C103 14 of Jeep
DB/OR from A/C low-pressure switch spliced to DB of Dodge high-pressure switch
LG/WT from Dodge high-pressure switch spliced LG C104 1 of Jeep
Overdrive
PCM C3 13 Transmission overdrive sense to momentary switch (added on) second terminal grounded
PCM C3 6 Overdrive lamp driver to amber led (added on) second terminal grounded
Sorry for the rotation of the diagram. I couldnt get it to rotate...