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Been quite busy with work but... I found out the issue and... it's a faulty fuse... Fuse 24 to be exact, the one going to the PCM and Fuel Pump Relay. The fuse was doing fine while the load was light, but once the ignition was on RUN, the resistance shot up like crazy. Resulting to the...

First thing I did and all fine. Also yes, all fuses are good. I managed to find a copy of the 2004 service manual, so next I'll be checking the PCM connectors if the power/ground going to it is clean or not.

Update: Bought a Bluetooth OBD2 reader (3210RS) and... "Could not link to vehicle". I tried the reader on another vehicle and no problem getting a reading there, so I can rule out user error. I checked the power and ground pin of the OBD2 connector and all fine. I'm starting to lean on the PCM...

Tried that today, I got a consistent crank with no engine start. Guess when I have some free time I'll check the other relays to see if they have starting condition and try to narrow down the issue this way. Thank you very much for the wiring diagram btw, I'm using the 2003 and 2005 service...

Update: I checked my voltages around again today and surprise, now I get 12v on pin 86 on start... The only thing stopping it from cranking is no ground on pin 85 which mean the PCM' seeing something it doesn't like and is telling me to F- off I guess. Now without being able to get any...

I checked all voltages without the relay in, so I indeed do NOT have 12v at pin 86 and ground at pin 85. It doesn't explicitly shows the park sensor going to ground when OK so maybe it doesn't... I didn't try to directly short 30 and 87, but testing on pin 30 I get 12v, and I tried putting 87...

Hey all, My 2004 Liberty Gas A/T stopped working out of the blue one morning. It started for half a second then died, wouldn't even crank anymore. Then I tried again a few hours later and then it would sometime crank (but no start) or not crank at all. I tried pulling out a potential code error...