My liftgate is closed but my sensor is telling me it's not.

Question edited to fix second code.
Grand Cherokee P0700 Code Definition If you are scanning your vehicle right now, you should be looking for a second code that tells you what is actually wrong. Think about it like this.

• P0700 Says- "Hey there's something wrong with this transmission.
• The Next Code(s) Say- "I'm the actual problem going on with the transmission. I'm what you're looking for."

Ways to fix
https://www.google.com/search?q=jeep+grand+cherokee+p0700+problem

And P0038

Jeep P0038 HO2S Heater Control Circuit High Bank 1 Sensor 2

https://www.carobdcodes.com > jeep-p0038-ho2s-heate...
OBD-II Trouble Code Description for P0038 Jeep ... Jeep Grand Cherokee SRT8,2006 Jeep Commander 4×4 Limited 5.7 HEMI,2005 Jeep Wrangler UK Version,2005 Jeep ...

P0038 JEEP Code - O2 Sensor 1/2 Heater Circuit High

https://www.autocodes.com > p0038_jeep
Jul 13, 2020 - Repair Information for P0038 Jeep code. Learn what O2 Sensor 1/2 Heater Circuit High means, location and how to repair?

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first is diagnosis.
you examine and test it. to see if its electrical or mech. failure.
and once discovered that follow that to logical conclusions.

Unlock the doors with the power unlock button then you have to push in on the bottom part of the plastic bezel that surrounds the liftgate handle, while at the same time pulling the liftgate handle outwards. It should open then.

There is a switch, most likely built into the latch, that tells the body control module when the liftgate is open or closed. If that fails what you experience will happen. An open / shorted wire or bad BCM or overhead panel will also cause the "liftgate open" indicator to be on. Try and locate the switch and look for obvious damage.

Inside the latch is 2 strips and a pin. the pin pushes the strips together. these strips bend and corrode the latch might not be turning to fully closed then the pin won't close the contacts. Spray Graphite lube in and work the latch with a screwdriver There is a plastic coating that might have worn thru on the latch finger The sensor is there for your safety Caravan's would eject passengers if latch is not secure. But that said bypass if all else fails.

Review the Jeep ZJ Service Manual Secc-8P-Power-Door-Locks

Good luck (remember rated this help).

You need to remove the panel from the liftgate and unlock and open it manually at the latch. It is not fun, but you can get the panel off with the hatch closed.

there is a button outside on the liftgate where the licence plate light is . push button up to open glass

there is a sensor on the liftgate, go to parts store and tell em whats its doing.. they will sell you the sensor thats causing the problem.. should be about $30.. good luck keith...

the electronic sensor could be bad or the lock is physically jammed.