2001 Civic AC Questions
#1
2001 Civic AC Questions
Clutch/pulley wobbling and making load racket. Replaced compressor, dryer, and expansion valve. Flushed system. New compressor had two oz. oil in it. Put 2 oz. back in comp. added 2 more to comp and 3 oz. in dryer. Replaced all o rings. Pulled vacuum for 30 minutes. Charged with 12 oz 134. Compressor will not come on. Ran 12 volt straight to comp to get it on. Low side pressure 20 psig high side 300 psig. Why would pressure be so high and what else could prevent comp. from coming on?
#4
Re: 2001 Civic AC Questions
You need to test two separate fuses:
20A hood fuse 1
10A dash fuse 14
Use this method:
https://honda-tech.com/honda-civic-d...fuses-3079359/
20A hood fuse 1
10A dash fuse 14
Use this method:
https://honda-tech.com/honda-civic-d...fuses-3079359/
#6
Re: 2001 Civic AC Questions
A Blu/Wht wire runs from the multiplex control unit to the A/C pressure switch. If you unplug this switch and ground the Blu/Wht wire in the free connector, does the A/C clutch engage and the condenser fan run with the key in ON(II)?
#7
Re: 2001 Civic AC Questions
Grounded blue whit wire. Nothing. I jumper end the low pressure switch and still nothing. Only way I've gotten the comp to come on is 12 volt straight to comp connector.
Trending Topics
#8
Re: 2001 Civic AC Questions
A Yel wire that activates the fan and clutch runs from the ECU to the multiplex control unit. In the connector that plugs into the multiplex control unit, ground the Yel wire with the key in ON(II). Do the fans run and the clutch engage?
#10
#17
Thanks. Had something come up. Won't be able to look at it until later in the week.
Finally able to work on this problem some more. Do you ground the yellow wire with the connector plugged in or unplugged? I tested it with the connector plugged in and still nothing.
Finally able to work on this problem some more. Do you ground the yellow wire with the connector plugged in or unplugged? I tested it with the connector plugged in and still nothing.
Last edited by toyomatt84; 10-23-2015 at 08:12 PM.
#18
#20
Re: 2001 Civic AC Questions
Unplug ECU connectors B and E.
Turn key to ON(II).
1) Ground the green wire at ECU connector pin B6. Do the fans run?
2) Ground the red wire at ECU connector pin E18. Does compressor clutch engage (click sound)?
Turn key to ON(II).
1) Ground the green wire at ECU connector pin B6. Do the fans run?
2) Ground the red wire at ECU connector pin E18. Does compressor clutch engage (click sound)?
#24