12 is direct battery input to PCM was disconnected within the last 50-100 key on cycles. Code 41 is an open or shorted condition in the generator field control circuit. Occurs when the battery voltage from the ASD relay is below 11.75 volts. Code 55 simply means end of codes.
55 is end of message. If that is the only code you have, then there isn't a problem
Diagnostic Code 12 on a 1995 Grand Cherokee just means that your battery has been dead or disconnected within the last 50 ignition cycles.
Codes on a 1995 Jeep are two digits long. So 5 means nothing.
Diagnostic code 43 in the 1997 Jeep Grand Cherokee refers to an issue with the distributor. This often causes the Jeep to stall at operating temperature.
catalytic converter circuit
Map sensor voltage low.
122 Throttle position sensor voltage low you need to clean the body throttle only. just applay carbritor cleaner to it and you go
P0783: 3-4 shift malfunction
The diagnostic code 12 51 55 is actually not a code for the 1994 Jeep Grand Cherokee Laredo. The 12 means that it has started searching for codes. The 51 is oxygen sensor stuck lean. The 55 means it is finished searching for codes. Getting this means nothing is wrong.
6???? the code should be like this ie: P0301. Please reask question with the code number..
P0123 TPS volts high. Replace the throttle position sensor.
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