Question about 1994 Jeep Grand Cherokee

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I'm trying to find out what the code 12 means for a 1994 Jeep Grand Cherokee Limited?

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Code 12 on any Chrysler or Jeep vehicle simply indicates the battery has been disconnected. Most of the time this code is induced when someone has disconnected the battery as a means to clear trouble codes. This code will clear itself after several successful starts

Posted on Sep 27, 2010

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1 Answer

What is diagnostic code 22 for a 1994 Jeep Cherokee grand limited


That code is for the engine coolant temperature sensor. "...input above maximum acceptable voltage." I would try a new temp. sensor. If that doesn't fix it, you may need to have an engine scanner hooked up, and see what the sensor is sending to the computer, and go from there.
A bad coolant temp. sensor can cause hard starting like your symptoms.
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Apr 25, 2014 | 1994 Jeep Grand Cherokee

1 Answer

I have a 95' Jeep Grand Cherokee Limited with a


Are you check your previoud questions: check_engine_error

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Jun 07, 2011 | 1995 Jeep Grand Cherokee

1 Answer

Engine code


12 and 55. The 55 means end of code session, the 12 means no distributor reference. Both of these codes are normal with the engine not running, so do not go out and purchase a dstributor. Is there another problem with the vehicle, or did you just want to know the codes? Comment back to continue,thanks.

May 26, 2010 | 1995 Jeep Grand Cherokee

1 Answer

I have a code 11,12 and 25 on my 1994 jeep grand c...


11 is no reference signal from cam position sensor (distributor) 12 means you cleared the codes before that test, 25 deals with the idle air control motor...possible wiring or open circuit.
Make sure you check all fuses before going further. A blown fuse can give all kinds of strange codes. Then go back to testing components.
http://www.scribd.com/doc/18999822/Jeep-Wiring-2. Diagram is for a 93 but is pretty close to what you have. Test procedures are contained in chilton and haynes manuals...I prefer chilton as their wiring diagrams are more accurate.

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3 Answers

1994 jeep grand Cherokee limited......stalling


Hi, You may have a defective ignition coil or a glooged fuel filter and/or fuel pump. it is hard for me to say at this point. What is the fuel pressure? Are there any trouble codes pulled from the PCM?

Mar 07, 2010 | 1994 Jeep Grand Cherokee

1 Answer

The fault code onmy jeep grand cherokee limited are 12 and 21.What are the meaning and how to solve the problems


12 is just telling you that battery has been disconnected or dead recently. No worries.
21 is oxygen sensor, which will likely need replacing.

Feb 15, 2010 | 1995 Jeep Grand Cherokee

1 Answer

94 jeep grand cherokee v8 5.2


12 is usually a power disconnect, 14 is usually a map sensor 56 I'm not sure of...likely you mis-read it and it was a 55, indicating that the code sequence has ended (nothing code)...right after which, codes repeat.

Jun 28, 2009 | 1994 Jeep Grand Cherokee

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