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Ecm not grounding some relays

 
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Old 28 May 2017, 03:38 pm
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Angry Ecm not grounding some relays

It started out with my ac high pressure valve releasing pressure. Having gone through this issue before, I immediately checked my cooling fan. No voltage there so I checked my relays for both high and low speed and the relays are fine. Then I bypassed the high speed relay and my fan works.
Later, I get a CIL and the codes are P0480, P0481, P0645. After checking fuses and relays for both fan speeds and the ac relay, I found out that the ecm isn't sending ground to those relays.
I have a 2005 pt cruiser touring edition, no turbo, but the temp sensor is mounted like it's the turbo motor.
Could the ECT be bad even though the temperature gauge is still working and I don't experience engine problems?
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Old 28 May 2017, 08:24 pm
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Join Date: Jan 2014
Location: SW PA
Posts: 1,177
Default Re: Ecm not grounding some relays

PTgurls, Please Introduce your self and tell us about your PT...

What parts your from, year make and model, mileage will do..
and what ever you do fix your problem, please don't leave us hanging
buy just fading away, let us know "The FIX"
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Addicted to Mopar You can tell how old I am..
65 Dodge Coronet 6 cyl 2dr Post
66 Ply Satellite with 273 engine swap to 69 340 4spd
70 340 4spd Dart Swinger "Those were the days my friend"
73 Charger SE
Had a few Vetts on the way 69, 85
Several Neons some flips
01 Sebring flip
Cruiser's 01, 220K Gone to a new home
Cruiser 03 133K Gone to a new home
Cruiser 06 110K Project
Cruiser 05 Ltd 120,809 bought with broken belt Oct2015
May 16 Resurrected to once again roam the streets.

20 Miles South Of Pittsburgh
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ac clutch, cooling fan, ecm, grounding, relays


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