Question about Dodge Nitro
Posted by Anonymous on
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Posted on Jan 02, 2017
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.
Posted on Jun 03, 2012
It has been a long time since I've replaced one of those. From what I remember you don't have to go through pulling the heater box out. You do need to remove the glove box assembly. Look up under the passenger side of the dash. If you see the bulge of the motor/cover hanging straight down then remove the cover and the motor will be there. If you don't see that then te motor is mounted horizonally. If that is the case then the fresh air door assembly will need to be removed and it is behind that.
Here is a quick check to see if the motor is bad. Thump the bottom of the heater box by the passenger's feet. if the motor comes alive or makes noise then it is bad. Also check the fuse and make sure that it doesn't work on any speed. (the resistor would prevent operation on only one speed or more but generally not all speeds)
Posted on Apr 05, 2009
First, it would be nice to know WHICH fan you are talking about. The engine cooling fan? The heater-A/C blower fan?
Second, this might be the time to educate you about fuses. Fuses do not cause electrical failures, Electrical failures cause blown fuses.
With that being said, it is highly unlikely that if you find the fuse you are looking for, that it will solve your problem.
Posted on Mar 22, 2012
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