Turning the key on and off 3 times and counting the flashes of the check engine light, the codes also show up in the odometer area.Most of the codes I have seen are like P0012 or P0021 which don't really match anything I could find. How are you getting your codes?
The 97 codes are a bit odd. Code 12 means that the battery has been disconnected within the last 50 starts (or some number like that). Mine has always popped up even when the battery hasn't been disconnected. 21 is an o2 sensor (most likely upstream).
I'm not sure what those codes mean either, as I am only familiar the style of codes @pagrey mentioned, which would come from an actual OBDII scanner.
However, they may be in the FSM, which you can download for free here:
Jeep Wrangler TJ Factory Service Manuals (FSM) & Technical Documentation
Sure!Can u please explain code 33 an 41 because I have those to plus others but I don't understand what those 2 mean specifically
Sure!
Code 33 refers to an open or shorted condition detected in the duty cycle purge solenoid circuit. The duty cycle purge solenoid is part of the evaporative emission control system, which helps to reduce harmful fuel vapors from being released into the atmosphere. An open or short circuit in this solenoid circuit can indicate a fault with the solenoid itself, the wiring connecting it, or a problem with the PCM (Powertrain Control Module) that controls it.
Code 41 refers to an open or shorted condition in the generator field control circuit. This code is related to the charging system of the vehicle. An open or short circuit in the field control circuit can indicate a fault with the alternator, the wiring connecting it, or a problem with the PCM. It means that there may be an issue with the alternator's ability to properly charge the battery.
When diagnosing these codes, it is important to visually inspect the wiring and connections related to these circuits for any obvious signs of damage or corrosion. If no visual issues are found, further testing with a multimeter and possibly a scan tool may be needed to pinpoint the exact cause of the codes.
If you have already replaced the alternator and are still experiencing low voltage readings, it's possible that there is an issue with the wiring or connections related to the alternator. Make sure that all the connections are clean and secure, and check for any visible signs of damage or corrosion.Ok so I replaced alternator this wkd an it still reads 12.3 volts with it running an no accessories. Runs like crap going thru gas like crazy an has no power like it's giving it to much fuel. Replaced map sensor also 2 weeks ago. Gives alternator field code . Vacuum to map sensor code which all lines look fine . Ac clutch relay which it doesn't have ac an also low engine temp but it's running around 200
If you have already replaced the alternator and are still experiencing low voltage readings, it's possible that there is an issue with the wiring or connections related to the alternator. Make sure that all the connections are clean and secure, and check for any visible signs of damage or corrosion.
As for the fuel consumption and lack of power, it could be related to the MAP sensor replacement or potentially an issue with the fuel system. Check for any vacuum leaks in the intake system as well as the fuel lines. It's also worth checking the fuel pressure to ensure it's within the correct range.
Regarding the AC clutch relay code, if your vehicle doesn't have AC, it's possible that there is a fault in the wiring or component related to the AC system. However, this shouldn't be causing the issues with power and fuel consumption.
Lastly, the low engine temperature code could be indicating a faulty coolant temperature sensor or thermostat. If the engine temperature is reading higher than 200 degrees, it could be a sign of a faulty sensor or thermostat.
If you have checked all the connections and performed these initial checks without finding any obvious issues, I would recommend bringing your vehicle to a qualified mechanic or using a diagnostic tool with live data to further diagnose the codes and issues you are experiencing.
Being able to see live data with a diagnostic tool will be incredibly helpful.
Ok so the wires coming from the alternator going to a plug connector. Green one is loose an can't tell where it's supposed to go or come from. An other loose one is green an black stripe from other side of connector an it's going nowhere also. Also green one isn't going to anything either. Wiring diagram didn't show green wire so I have no clue what it's for
Ok so the green wire is coming from the alternator side but I see nowhere that it would've connected to the alternator. That same wire is loose on the other side of that plug plus the other wire. I'm at a loss cause I don't understand the wiring diagrams very well
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