2007 dodge nitro heater not working - 2007 Dodge Nitro SLT

The first thing to do is check all the fuses, but it sounds like you need a mobile auto electrician.

Fuse Box Diagram Dodge Nitro (2007-2012)

https://fuse-box.info > dodge > dodge-nitro-2007-2012...

In this article, you will find fuse box diagrams of Dodge Nitro 2007, 2008, 2009, 2010, 2011 and 2012, get information about the location of the fuse panels ...

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Question edited for clarity.
Question moved to the sub category.

All in the link.

https://www.google.com/search?q=2007+Dodge+Nitro+firing+order

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heater door actuator bad. it is up under dash on the drivers side towards the center.

If the fuse is ok, there may not be enough freon in the system to operate the safety pressure switches. 2007 Dodge Nitro Owners Manual Pdf

2007 Dodge Nitro Recalls - Cars.com

www.cars.com/recalls/dodge/nitro/2007/

Cars.comLook up all NHTSA vehicle safety recalls for your 2007 Dodge Nitro, and contact ...THE TRANSFER CASE HEAT SHIELD MAY DROP DOWN AND RUB ON THE ...ADDITIONALLY, THE DRIVE SHAFT FAILURE WILL RESULT IN A LOSS OF ...

Differential and Transfer Case ' Dodge Nitro Forum

www.nitroforumz.com > ... > Detailing and General Maintenance Forum
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Where is the ECT Sensor located on dodge 2007 nitro Google Search

click on link...do blow up the picture,click on that picture

2007 Dodge Nitro Service Repair Workshop Manual Download


for better result of your problem click this link

You replaced the resistor and WHAT relay? The blower motor circuit on a 2007 Dodge Nitro does not use a relay.

The blower resistor gets it's power from the A/C - heater control unit.

If you check for voltage at the blower motor resistor connector (Key on, relay disconnected), the DARK BLUE/GREY wire should be hot when the control switch is on HIGH. The DARK BLUE/VIOLET wire should be hot with the switch in the MEDIUM 2 position.The DARK BLUE/ORANGE wire should be hot with the switch in the MEDIUM 1 position. The DARK BLUE/BROWN wire should be hot with the switch on LOW.

If any of these are not as stated above, then you either have a bad A/C - heater control unit, or faulty wiring between the control unit and the resistor.

Audio System Upgrade Package 2007 Dodge Nitro 2003-2006 Jeep

This sight should help you.

The diagram you requested appears below:

2007 Dodge Nitro 4.0L V6 Serpentine Routing