Code 11. No distributor reference signal detected during engine cranking. Check the Circuit between the distributor. http://www.fixya.com/cars/t9405264-check_engine_error

Code 12. Problem with battery connection. Direct battery input to PCM disconnected within the last 50 ingnition key cylcles.

Code 13. Indicates a problem with the manifold absoulte pressure sensor vacuum source. http://www.justanswer.com/jeep/1fyaq...-cherokee.html

Code 14. Manifold absoulte pressure sensor voltage too low or too high. http://troubleshootmyvehicle.com/jee...e-map-sensor-1

Code 15. A problem with the vechicle speed sensor signal. No distance/speed sensor detected during road load conditions. http://www.jeepforum.com/forum/f13/r...-light-627295/

Code 16. Loss of battery voltage. http://www.jeepforum.com/forum/f11/v...-sport-677458/

Code 17. Engine is cold too long. Engine coolant temperature remains below normal operating temperatures during operation. (Check Thermostat) https://www.cherokeeforum.com/showth...607&styleid=16

Code 21. Problem with oxygen sensor signal circuit. Sensor voltage to computer not fluctuating. http://www.jeepforum.com/forum/f13/9...-21-a-1188440/

Code 22. Coolant sensor voltage too high or too low. Test coolant temperature sensor. http://www.jeepforum.com/forum/f13/t...-22-a-1045908/

Code 23. Indicates that the intake air temperature sensor input is below the minimum acceptable voltage or sensor input is above the maximum acceptable voltage. http://www.jeepforum.com/forum/f9/ch...sensor-600747/

Code 24. Throttle position sensor voltage high or low. Test the throttle position sensor. http://www.wranglerforum.com/f210/th...or-167096.html

Code 25. Idle air control valve circuits. A shorted condition is detected in one or more of the air control valve circuits. http://www.justanswer.com/jeep/3bmta...imes-will.html

Code 27. One of the injector control circuit output drivers does not respond properly to the control signal. Check the circuits. https://www.cherokeeforum.com/showth...657&styleid=16

Code 31. Problem with the EVAP canister purge solenoid circuit. http://www.jeepsunlimited.com/forums...-Error-code-31

Code 32. An open or shorted condition derected in the EGR solenoid circuit Possible air/fuel ratio imbalance not detected during diagnosis. http://www.jeepforum.com/forum/f13/o...-orvis-636815/

Code 33. Air conditioning clutch relay circuit. An open or shorted condition detected in the air conditioning clutch relay circuit.
https://www.cherokeeforum.com/showth...302&styleid=16


Code 34. Open or shorted condition detected in the cruise control vacuum or vent solenoid circuits. http://www.jeepforum.com/forum/f13/v...-issue-637575/

Code 37. Torque converter clutch solenoid circuit. An open or shorted condition detected in the torque converter part throttle unlock solenoid circuit. (Automatic transmission models only)
http://autorepair.about.com/library/a/1f/bl695f.htm

Code 41. Problem with the charging system. Occurs when battery voltage from the auto shutdown relay is below 11.75-volts. http://www.cherokeetalk.com/forum/f8...d-switch-9601/

Code 42. Auto shutdown relay control circuit indcates an open or shorted circuit condition. http://autorepair.about.com/library/a/1g/bl561g.htm

Code 44. Battery temperature sensor volts malfunction. Problem with the battery temperature voltage circuit in the PCM. http://www.jeepforum.com/forum/f13/b...issues-915099/

Code 45. Overdrive solenoid. Problem detected in the overdrive solenoid circuit.
Code 46. Charging system voltage too high. PCM indicates that the battery voltage is not properly regulated. http://www.jeepforum.com/forum/f11/1...-46-a-1131283/

Code 47. Charging system voltage too low. Battery voltage sense input below target charging voltage during operation and no significant change in voltage detected during active test of alternator output. http://www.jeepforum.com/forum/f11/a...ltage-1030281/

Code 51. Oxygen sensor signal input indicates lean fuel/air ratio conditions during engine operation.
https://www.cherokeeforum.com/f2/1995-jeep-xj-code-51-a-101377/

Code 52. Oxygen sensor signal input indicates rich fuel/air ratio conditions during engine operation. http://www.jeepforum.com/forum/f11/b...n-warm-856051/

Code 53. Internal PCM failure detected.

Code 54. No camshaft position sensor signal from distributor. Problem with the distributor synchronization circuit. http://forums.cnet.com/7723-7811_102...tart-no-spark/

Code 55. Completion of fault code display on CHECK ENGINE lamp. This is an End of message code

Code 62. Unsuccesful attempt to update service reminder mileage in the PCM memory.

Code 63. Controller failure. PCM memory write denied. Check the PCM.

All information was provided by the Haynes Repair Manual. Chapter 6 section 7. Also google.

Some more codes Can be found Here https://www.cherokeeforum.com/f2/jee...di-obdii-3341/

That last sentence is scary...........

I think that there's a sticky on this.

I was bored!

Anyone know how to fix a code 27? My Jeeps idles rough and sucks gas. And my CE comes on after my jeeps been on a little bit and throws the 27 code.

https://www.cherokeeforum.com/showth...657&styleid=16

Thanks for the link, 'preciate it buddy

No problem man.