2010 Dodge Journey with 2 zone ATC no heat coming from passenger side but good heat on drivers side. Heater doors seem to be operating okay. Any ideas on what the problem is?

Question edited into written English.
Question moved to model category.

Wow, that's bad!
Someone stealing your fuel? Hole in the fuel tank or lines?

The stats say
Regular Gasoline EPA Fuel Economy 17 MPG combined city/highway (15 City, 22 Highway) 5.9 gal/100mi 359 miles Total Range https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=25378

You need am auto electrician with a pro grade scan tool computer to check long term and short term fuel trim, check MAF and o2 efficiency. With that consumption your spark plugs should be black, if the engine management system is dumping fuel. The other possibility is that you are 'lead footed', racing from traffic lights, revving through gears, using 'kick down' all the time, and stomping on the brakes at the last minute. That would easily shave 50% off normal consumption.

https://www.google.com/search?q=2009+dodge+journey+bad+gas+economy

For the passenger heating, that one is easy, blend doors stuck, blend door actuator failed, or a linkage has come off. Videos show how to get there and check.

Heat blend door may be stuck not switching to hot air .

It appears the control door is not opening. It may be stuck, or the vacuum is disconnected. It may also have a blockage in there preventing the door from opening.

DTC B1340 Air Mix Door #1 Movement Problem !
The heater and A/C programmer supplies voltage to an internal motor that drives the air mix door. The heater and A/C programmer monitors the air mix door position feedback from a sensor on the motor. If the air mix door is requested to move but the feedback voltage does not change, the heater and A/C programmer will store DTC B1340. If the air mix door feedback indicates that the feedback is near the hot or the cold extreme, the DTC will not set. Evaluate the operation of the air mix door through self diagnostics as described in the test description.
Test Description
Perform the Diagnostic System Check before continuing with the diagnosis of this DTC.
A Scan Tool allows for the direct control of the air mix door by observing the following conditions:
• The air mix door position feedback value
• The value`s difference from the air mix door commanded position value
These readings indicate a fault internal to the heater and A/C programmer in the air mix door sensor feedback.

Did you perform the Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check
2
With the engine running, connect a Scan Tool .
Turn the dual zone to OFF (passenger temperature offset at 0 or OFF).
Exercise the suspect actuator using the temperature control on the control assembly.
Is the door being commanded (COM) to the proper high and low values?
COM High 100 %
COM Low 0 %
Go to Step 3
Go to Step 4

If you are unfamilier with this , i suggest you take it to a ASE certified repair shop or the dealer .

Help with heating issues, blend actuator - Interior - Dodge ...

www.dodgejourneyforum.com/.../5304-help-with-heating-issues-blend-a...

Jan 13, 2014 - My 2009 Journey R/T is only blowing hot air out the driver side vents, while the other vents (passenger and rear) are blowing cold air ... Thanks Frogbox....keep in mind that the info is for the 2009 model and I guess it also applies to2010's. 2009 journy sxt heat/cool issue
Oct 16, 2014
Air Conditioning?
Dec 22, 2012
Rear heater A/C
Dec 22, 2012
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In a 2010 dodge journey why heat comes out just one side

Sounds like the damper flap is stuck or broken if you have the dual heater controll. You can try to reset it by setting both sides to cold shut the car off after you get cold on both sides. Then restart car and set heat to high on both sides. If that won't work you will have to take alook at the door actuator motors. Not much fun but can be done. At this point you may want to take your car to the dealership I'm told the repair is around 500.00 to 1000.00

This is the shift interlock cable dis-engaging. It is the cable that makes it where you can not shift out of park unless the brake is depressed.

hose valve stuck partway closed..

I have taken my 2010 Dodge journey in 3 times. Actuator replace system flushed out and still no one knows the answer. It's getting cold here so I think the answer is sell it.