The Dodge Durango is an SUV with a hit and miss electrical system. A Central Timer Module (CTM) controls many of the electrical/electronic features with a simpler wiring system. The circuits should limit multi-component outages so that hopefully you have simpler electrical fixes.
Make use of the factory-installed seven-circuit trailer wiring connector system so that you don't need to splice into wiring for towing.
Locate the power distribution center (PDC) at back of the battery tray. This is where you'll find cartridge fuses that control the components under the hood. The Dodge Durango includes a fuse for each low beam to isolate problems.
Take your SUV into the dealer if you're experiencing a rough idle. Your Powertrain Control Module may require erasing and reprogramming, depending upon the power codes that appear.
Replace the blower resistor if your air conditioning and heating switch only have two settings: high and off. Look in the ductwork below the glove box. When you find the defective resistor, remove the two bolts that hold it, and then slide the red tab to release it.
Get heat to the back seat of your Dodge Durango by checking the control unit under the right rear panel. You might find that the blend door into heat and AC unit is broken and needs replacing.
Check the Front Control Module (FCM) if your Durango needs a warming up period before any of the electrical or electronic controls decide to work. If you have a 2004 or newer model, a mechanic will have to use a CAN (Controller Access Network) Bus based system to get codes. The problem could be something as simple as a corroded pin on the FCM.
Look at the Body Control Module (BCM) if you're having electrical problems with both lights and power locks. The BCM controls multiple components; unfortunately, it can be a pricey fix.
