I'm having ignition problems

Asked by Tammy Jul 21, 2020 at 02:22 PM about the 2004 Dodge RAM 1500 SLT Quad Cab 4WD

Question type: Maintenance & Repair

I have a 04 dodge ram 1500.the fan blower will only run when switch is on
ac.Does anyone know how i can fix this.Thank you!

2 Answers
27,370

oilyspill answered 4 years ago

I'm not sure I under stand your problem? I did look at your wiring for hvac blower motor, voltage to blower motor goes hot with key on. On and off, different speeds, Is controlled on the blower motor ground circuit. Hvac control module and resisters are on the blower ground circuit. you have to turn on hvac or there is no ground for blower motor. Of course blower hi speed doesn't use resister. Maybe I misunderstood your question?

Mark helpful

Tammy answered 4 years ago

No what i mean is when the key is turned back to accesory,the blower will work,but when you start it the fan will not work.

Mark helpful

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