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H
heuster
Well-Known Member
·
From
Arizona
Joined
Sep 18, 2016
Last seen
Apr 15, 2025
Posts
70
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H
heuster
reacted to
Hamfisted's post
in the thread
A/C Compressor will not engage unless jumped at the relay
with
Like
.
The Navi DATC test is the same. Key - ON / AC - OFF Push the OFF and FLOOR buttons simultaneously / Release and push the AUTO button...
Apr 15, 2025
H
heuster
reacted to
DieselMonk's post
in the thread
A/C Compressor will not engage unless jumped at the relay
with
Like
.
You are saying when you jump 30 to 87 at the relay, the system works and blows cold? Make yourself an incandescent test light jig, using...
Apr 15, 2025
H
heuster
reacted to
DieselMonk's post
in the thread
A/C Compressor will not engage unless jumped at the relay
with
Like
.
You switched out the relay and got the same issue. Test the relay coil with you DMM for resistance. You get anywhere from 50 - 200 ohm...
Apr 15, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Another question that popped into my head is that the old AC compressor was a piston drive and this is a scroll compressor I put in...
Apr 15, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Ty Ty for the reply!! I really appreciate you taking the time. I will try and get this tested this weekend. I'm not great with...
Apr 15, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Not sure on exactly how to do what your describing. I have the light, I probably have enough wire, but I'm not sure I understand where...
Apr 15, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
I figured this out after some searching. It's the Off+Defrost and then the Auto button that kicks off the diagnostics. 00-73 is the...
Apr 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
I've tried this in every combination. Key on, engine off AC off. OFF button and then "mix door" button that adjusts floor, normal...
Apr 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Anyone with any other troubleshooting ideas on this? Did the steps I performed confirm that it's the PCM or the button on the dash?
Mar 27, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Any ideas on this? I really need to figure out how to get this fixed.
Mar 4, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Is there a way to confirm that the button is the source of the problem? All the lights work on the climate head unit. While the AC was...
Feb 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
2005 Lincoln Navigator 2WD
Feb 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Nothing. The ACCS PID does not ever change. Not to complicate the troubleshooting effort, but I've started to have random issues with...
Feb 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Yes, the amber light on the AC control is on along with one other light with related controls. I can push the A/C button and turn the...
Feb 12, 2025
H
heuster
replied to the thread
A/C Compressor will not engage unless jumped at the relay
.
Update on this: I bought OBDLink EX and installed FORScan. Ran the key off self-test and everything checks out. Compressor clutch...
Feb 12, 2025
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