2006 Ram 2500 outside temp display problem - Hemi Truck Club
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Old 04-13-2017, 12:09 PM   #1
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2006 Ram 2500 outside temp display problem

I have a 2006 Dodge Ram 2500 Quad Cab 85 k miles

My over head temp display is stuck on -40 degrees.
I ordered a new sensor installed and same problem.

I did the reset and step button test and it said PASS
Some test I did

I checked the connector for a short nothing
I checked both sides of connector left side has 5 volts and right side has continuity to ground.

I also put a short across the connector and the display showed 131 degrees.
So i think the connector to the display seems ok.

Has anyone had this problem?
What did you do to fix the problem.
the connector out front that connects to the sensor does it go directly to the display with no other connections under the hood.

If you did trace your 2 wires where are they located after they go under the fuse box under the hood.


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Old 04-13-2017, 12:24 PM   #2
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dss56 - Someone with technical advice should be along soon to help with your question .
Congratulations on your first post .

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Old 04-13-2017, 01:17 PM   #3
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Oh yeah, the '06 2500 I had did it, mine came and went was never stuck. Longest time it stayed -40 was 2 days. I never did figure it out because it was so sporadic.
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Old 04-13-2017, 07:43 PM   #4
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Well it seems the wiring is fine if you jumped the wires and it went high meaning if there open it would go coolZ is the plug damaged in anyway? Pins could be loose in the plug not connecting good enough or it's a bad sensor. Measure the resistance on the sensor and hold it in your hand while doing so the resistance should change as it warms up.
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