Bedrck47
Full Access Members
C410 and C411
On C410 pin #10 to ground Battery Voltage
On C411 pin #9 to ground Battery Voltage
On C410 pin #10 to ground Battery Voltage
On C411 pin #9 to ground Battery Voltage
2003 Rear A/C not blowing, Blower, Fuse & Resistor is Good. HELP!
- Thread starter DeeeePIMPact
- Start date
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DeeeePIMPact
Active Member
I tried taking apart C410 & C411 and neither plug has a pin layout.
DeeeePIMPact
Active Member
NEVERMIND I just refreshed the page and saw that you posted a layout 
THANK YOU
THANK YOU DeeeePIMPact
Active Member
Sorry it took so long, I had to find new batteries for my DVM...
C410 13.5
C411 34.8??
C410 13.5
C411 34.8??
Bedrck47
Full Access Members
No problem Just keep checking and post the results
DeeeePIMPact
Active Member
I got 13.5v on the C410 plug #10 pin
on the C411 plug on the #9 pin the voltage just kept rising over 190 and then went to 0 then started all over again.. Very weird, I am 90% positive I was reading the correct pin...
on the C411 plug on the #9 pin the voltage just kept rising over 190 and then went to 0 then started all over again.. Very weird, I am 90% positive I was reading the correct pin...
DeeeePIMPact
Active Member
I couldn't keep the car running when disconnecting the C411 plug I had to turn off the car and turned the key all the way forward.
I tried multiple times and never got a stable reading from C411 #9, it would always just keep rising... Very weird. Am I doing something wrong?
I tried multiple times and never got a stable reading from C411 #9, it would always just keep rising... Very weird. Am I doing something wrong?
Bedrck47
Full Access Members
Ok C410 looks good but not good on C411 pin 9 that should have been 13.5 also
Sounds like your a little unsure that you may have the correct pin9 on C411 Its a Pink/white wire check both the male and female connectors.
Look at the print on post #12 Follow the wire from fuse #107 It exits the fuse block thru connector 270n then goes to C411 and then to the relay block
Re check the pins where F107 plugs into to make sure they didn't spread apart If the did you can take a small screwdriver and push them back together
Post the results before we go any further
Did you by chance do any work on the fuse block?? like unplug any of the connectors??
Sounds like your a little unsure that you may have the correct pin9 on C411 Its a Pink/white wire check both the male and female connectors.
Look at the print on post #12 Follow the wire from fuse #107 It exits the fuse block thru connector 270n then goes to C411 and then to the relay block
Re check the pins where F107 plugs into to make sure they didn't spread apart If the did you can take a small screwdriver and push them back together
Post the results before we go any further
Did you by chance do any work on the fuse block?? like unplug any of the connectors??
Last edited:
DeeeePIMPact
Active Member
GOT IT WORKING! or Should I say you got it working!
I had a car alarm installed last weekend... I found a cut in the wire less than a foot away from the fuse box... Taped that off. The connector holding that group of wires was lose... Plugged that all the way in... The fuse box itself was pretty lose... Tightened that up. AND PRESTO! A/C WORKS!
I am guessing that the shop that put in the car alarm was messing with it? IDK, just glad it's working now!
Thank You so much Bedrck47!! Your god among men! I owe you a 12 pack if your ever in Orlando!
THANK YOU for time and help!! THANK YOU!
I had a car alarm installed last weekend... I found a cut in the wire less than a foot away from the fuse box... Taped that off. The connector holding that group of wires was lose... Plugged that all the way in... The fuse box itself was pretty lose... Tightened that up. AND PRESTO! A/C WORKS!
I am guessing that the shop that put in the car alarm was messing with it? IDK, just glad it's working now!
Thank You so much Bedrck47!! Your god among men! I owe you a 12 pack if your ever in Orlando!
THANK YOU for time and help!! THANK YOU!
Bedrck47
Full Access Members
Your Welcome. And to be honest you fixed it. I just pointed you in the correct direction.
I bet the wire went to a connector on the back side of the fuse block
I bet the wire went to a connector on the back side of the fuse block
Last edited:
1955moose
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That was amazing diagnosis guys. It never ceases to amaze me how many times a shop installing some kind of electronics, screws up an otherwise working system on these vehicles. Good job!
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2006Overlander
Member
2006 EB
having a similar issue with the Rear ac not working. I have tested voltage at the relay you mentioned. Also have tested voltage at the fan blower relay in the rear. Still have no power going to the fan blower plug itself.
All relays and fuses ahead inside of the front pax side relay box is intact. All wiring is intact.
The only option I have left is to undo the loom and look for knicks or bends in the wiring.
I had tested a brand new fan that I purchased and it didn’t work. Hooked it to straight 12v and it works. So not the new fan. Also purchased brand new actuators and those seem to work as well.
having a similar issue with the Rear ac not working. I have tested voltage at the relay you mentioned. Also have tested voltage at the fan blower relay in the rear. Still have no power going to the fan blower plug itself.
All relays and fuses ahead inside of the front pax side relay box is intact. All wiring is intact.
The only option I have left is to undo the loom and look for knicks or bends in the wiring.
I had tested a brand new fan that I purchased and it didn’t work. Hooked it to straight 12v and it works. So not the new fan. Also purchased brand new actuators and those seem to work as well.
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