PO700 Code

I'm getting the PO700 code with the mil light on . I have read there are several sub codes related to this code . Yesterday I noticed that I don't have a 4x4 dash light that comes on when the transfer case lever is in any position . Will the switch / sensor for the dash light malfunctioning cause the 700 code ?
The transmission seems fine & the transfer case does work fine when the lever is moved into the 4x4 positions .

I wouldn't think it would...best bet is to get it read by a shop with the proper scanner for the transmission. How many miles do you have?

The P0700 code is the "TCM requests MIL to be turned on".

You need a better scanner to read the trans codes,there are several hundred that will trigger the P0700 code which is the only 1 that can be viewed by a global OBDII code puller.

I read a rather long thread concerning replacing the selector switch I'm referring to . A couple of the posters stated that the switch communicated with the pcm when the lever is placed in the 4-low position .

Logan Savage said:

I read a rather long thread concerning replacing the selector switch I'm referring to . A couple of the posters stated that the switch communicated with the pcm when the lever is placed in the 4-low position .

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The t-case position sensor will not cause the check engine light to turn on in a KJ.

That much is a known fact.

tjkj2002 said:

The t-case position sensor will not cause the check engine light to turn on in a KJ.

That much is a known fact.

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It will...but not that code.

Did on mine.

dude1116 said:

It will...but not that code.

Did on mine.

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Nope,my sensor is not even in my KJ anymore and no codes.The connector is just hanging and I have a '02 KJ were being in 4low changes the PCM programming for more torque.

tjkj2002 said:

Nope,my sensor is not even in my KJ anymore and no codes.The connector is just hanging and I have a '02 KJ were being in 4low changes the PCM programming for more torque.

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My '04 does too.

Calling me a liar when I had a CEL for this? Code was P0836 if I remember correctly. Of course the switch was out for years before that MIL came on...

dude1116 said:

My '04 does too.

Calling me a liar when I had a CEL for this? Code was P0836 if I remember correctly. Of course the switch was out for years before that MIL came on...

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No P0836 code for KJ's,not even in the system.Now for KK's there is since they have a computer controlled t-case.

You got a phantom code,just like I always have p0101 MAF code in my KJ but as anyone with one knows the 3.7 does not even have a MAF.

When the P0700 code turned on in one of our KJs, we noticed lots of hesitation. After that it drove fine. Ended up replacing Torque converter and a solenoid. That's all. But by what you describe, you probably just need a flush or something. A good mechanic will be able to tell you exactly whats up with it.

As stated, best is to get it read by a shop so they can give a better diagnosis.

When is the last time your fluid/filters were changed?
Mileage?