kfed6300

Can anyone please explain to me in layman's terms what code 44 "no FJ2 voltage present at logic board" means ??? What is FJ2 and where is it located ??? STILL chasing the "ghost in the machine" Thank you in advance...

lawsoncl

From another thread with the same question on a 96:

https://www.cherokeeforum.com/f2/cod...e-help-230970/
"MIL 44 now P1493 (Battery Temp Sensor input voltage too low), or P1492 (Battery Temp Sensor input voltage too high).
Sounds like you have an issue with the Battery Temperature Sensor (under the battery)."

Not critical aside from affecting how fast the battery charges.

Saudade

You could try using an OBD scanner since the '96 supports that rather than the Key Click.

Here's the list of codes. lawsoncl listed your specific code.

https://www.quadratec.com/c/referenc...iagnostic-code

kfed6300

Thank you for the replies. But they still do not answer my question. What does the 44 code I posted mean in layman's terms and what and where is that circuit located ??? There are 3 different explanations for code 44 in the code legends.

I am only interested in the one I posted. Thank you for all of your help.

lawsoncl

Any other listing you found are likely not for Jeeps. There is a temperature sensor under the battery. The sensor or the wire to it is broken.

awg

I have provided access to the '96 electrical manual, and suggested you get a $30 OBD2 scanner in other posts you have made.

It will be difficult to progress your problems if you do not take the appropriate approach

kfed6300

Gee awg..not to be rude but I have a OBDII scanner. The electrical issue is not letting it link to vehicle. It did before the in cabin issues started. Also I downloaded the 95 & 97 FSM PDF's. From what I have read in this forum the 96 is only available in hardcopy which I don't have any money to buy it. The code definitions come from 2 DIFFERENT links that say the same thing that I got off this forum. I ask a specific question for a reason. PLEASE DONT GET OFFENDED I SURELY APPRECIATE EVERYONES HELP AND AM GRATEFUL FOR IT. But still no one has answered my question. If no one knows cool..I don't either 😂

lawsoncl

I've never found a 96 FSM in electronic version either. 96 seems to be a blend of 95 and 97, and some things changed during production.

awg

No offence taken my friend, I am trying to be helpful

I know you tried to get access to the '96 Electrical Manual before, and I have changed access provisions. Another poster confirmed the link now works, you did not reply,

here is the link, let me know if it doesnt work , via this thread. I try and make this available to everyone, as its very much needed, the wire colors on a '96 are not the same as '95 or 97

96 FSM ELECTRICAL - Google Drive

awg

further reply, as I couldnt add any more after the link, it was all blue..anyway..

here is another manual that is handy for diagnostics, the technicians manual...its for ODD1, but has diagnostic trees, which help a newbie lots

" Powertrain Diagnostic Procedures Manual" - Jeep Cherokee Forum

The reason I recommended BAFX reader is it will read a '96 XJ, many OBD2 readers will not, as '96 was the 1st year of OBD2

here is a link

BAFX OBD2 Review – 2022 Buyer’s Guide (obd2scanners.org)

or alternatively, fault find if there is voltage present on the correct pinout for the OBD2 port (which is in the 96 manual)

If you have no power there, that is a critical fault

for about $30, I think I know what I would do

I have 3 x '96 XJ, and was an electronics technician by trade ( a long time ago now)

even so, I would reach out to others for help if needed, there are some on here with exceptional knowledge

but at the end of the day, you are the one that has to probe the wires and measure the voltages

diagnose the most serious issues first imo

good luck

minor electrical matters can defeat almost anyone, even auto electricians

kfed6300

Ok awg the link worked but it is the same thing as the 95 or 97 that I have already downloaded. Seeing as you have three 96 jeeps and were an electrical tech I just ASSUMED (my bad &#129335 if I told you specific issues in the PDC and fuse block under dash on drivers side that you would have an idea what I am talking about and where to look. (I was hoping with fingers crossed &#128514. I do NOT know how to read schematics. I am NOT an electrician. I have BASIC knowledge. The terms they use I have to look up since I don't understand what they mean. (THAT IS WHY ELECTRICIANS MAKE THE BIG $$$ 😂 ) No one has a correct diagram for the PDC my particular jeep has. Just like Lady L in a previous thread. Through my limited knowledge, help from people on this forum, and a "test light" I have discovered some things. 2 mini fuses in the PDC have no power(don't know what they operate since no correct diagram). And 5 fuses in the under dash drivers side block have no power. (SEE PICS CIRCLED FUSES DO NOT LIGHT TEST LIGHT EITHER SIDE.) I have tried to trace the wires in the schematics like someone has suggested but I haven't a clue what these schematics mean. I have taken both fuse blocks apart looking for corrosion or melted insulation and found neither. Again that's why electricians make the big $$$ 😂. As I stated in a previous post I have no financial resources. If I did I would have gotten another vehicle or put this one in the shop by now. I am trying to fix this one and have been messing with it for over 2 years for the fact that as of this time I have no other choice. I can live with the in cabin issues (locks..horn..power seat..etc.) but the ORIGINAL issue that my first thread described affects the running of the motor.


About the OBDII scanner. I have a cheap one that USED TO LINK BUT NOW IT doesn't (it quit linking a year ago when the in cabin issues popped up). I have access to a SNAP ON brand and it links but does not give me any codes that would tell me where to look. UNFORTUNATELY It is an ELECTRICAL issue. (🤷Yay me &#128514. I understand looking at the jeep in real time and reading about it on a forum are 2 different things. On a side note I don't understand how the #5 30 amp blower motor fuse in the under dash drivers side fuse box does not light up either side with a test light but the blower motor evidently comes on when I turn on the climate control and put the fan on high. It blows out the vents. WTH ???🤷 Anyway thank you for your help sir. Just do me a favor and pray for me that I get it figured out or someone knows what the issue is from experience. Blessings to you and yours everybody 😊

awg

Do you have the A5 sized "Operations Handbook" that comes with the vehicle

That describes the fuse functions (although 2 of my '96 differ)

I am not sure if the '96 Electrical Chapter describes fuse locations

The fuses are numbered. Use a mirror and light in footwell to make life easier

Unfortunately, I cannot fix the problem for you, as I advised earlier, print out the schematic and use colored pens to identify what fuses and wire colors are dead

or you can post up highlighted diagrams from the schematic on this forum

You must be systematic, bad electrics spell the end of many an XJ

Did you look at Scanner Dans Youtube on XJ electrical fault finding ?

lawsoncl

https://www.carfusebox.com/jeep-cher...eaker-diagram/
Fuse 19 - Instrument Panel
Fuse 11 - Headlamp, Delay Module, Horn
Fuse 13 - Power Door Lock

18/21 in the PDC are fused ignition feed

I'm starting to suspect you have a bad ignition switch.

kfed6300

Ok Lawsoncl...I had to replaced the keyed ignition switch a couple of years ago. I had to " hot wire" it with a couple of paper clips for a minute till I could find the right switch. Then it was $80. ( it's one that fits a dodge viper or a dodge truck...go figure.) That is kind of when this stuff started I think. Isn't there an "ignition switch" on the steering column under the dash ??? Does anyone know what that does or how to test them ???

lawsoncl

The older Jeeps with the GM style column had the switch down near the base. 95/96 the electrical switch is behind the lock cylinder.