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93 Accord AC and cooling fan not working

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  #11  
Old 01-16-2014, 07:23 PM
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Oh boy, where should i begin that venture at?!
 
  #12  
Old 01-16-2014, 08:06 PM
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At the A/C condenser fan relay harness connector:
  • With a voltmeter’s red lead touching the Yel/Wht wire terminal and voltmeter’s black lead touching body/chassis ground, is there power/voltage with the ignition on?
  • With voltmeter’s red lead touching the Wht wire terminal and voltmeter’s black lead touching body/chassis ground, is there power/voltage? The Wht wire should have power/voltage at all times.
 
  #13  
Old 01-16-2014, 08:31 PM
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whats the location of the relay for the AC? Its not in the fuse box. (1st week with the car and never worked on a honda prior, so as you can tell im not familiar with this car as of yet)
 
  #14  
Old 01-16-2014, 08:38 PM
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It's in the front left corner of the engine compartment. It is the relay closest to the windshield fluid reservoir.
 

Last edited by redbull-1; 01-16-2014 at 08:54 PM. Reason: image removed
  #15  
Old 01-16-2014, 08:51 PM
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Alright ill likely hold off until tomorrow for that. Thank you for all the help so far, seriously you have given the best guidance i could ask for. Do you happen to know the Resistances for the Temp switch at given temperatures? I'v been trying to google them for the last half hour. I want to test the temp switch before just replacing it.
 
  #16  
Old 01-16-2014, 09:00 PM
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Engine coolant temperature Switch A is a normally open type of switch.

Generally, Switch A should close above 194 degrees F (93 degrees C) and the resistance show about zero ohms when closed; or just check for continuity when it is closed.
 

Last edited by redbull-1; 01-16-2014 at 09:03 PM.
  #17  
Old 01-16-2014, 09:52 PM
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decided to check the terminals since i was up anyway.
--------------______----------------<(tab at Top of connector for reference of orientation)

__yell(11.4v)w/ ign ON __White(~12.14) ON/OFF
__blue or (11.4v) ign ON __ blue or (11.4v) w/ign ON
blue/yellow blue/yellow
 

Last edited by onemandeep; 01-16-2014 at 09:57 PM.
  #18  
Old 01-16-2014, 10:27 PM
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this bottom left terminal is either blue and yellow or blue, but had 11.4 volts with the key in the ON position. Is that terminal supposed to be live with the key on?
 
Attached Thumbnails 93 Accord AC and cooling fan not working-1523522_654102157961888_172503131_o.jpg  
  #19  
Old 01-16-2014, 10:27 PM
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Blue wire is for the ground signal (coming from either Temp. Switch A if closed, ECM or radiator fan control module) to close the relay (the relay is normally open) to run the fan; Blue wire should have no power/voltage. If it shows voltage, there is a possibility of a short somewhere, where a power wire is touching this Blue wire or a component is shorting the Blue wire. Check this Blue wire again to make sure whether it has power. Voltmeter black lead should be touching body/chassis ground in the test and voltmeter's red lead touching Blue wire terminal.

The Blue/Yellow wire is to provide power to the fan motor, which comes from the White wire when the A/C condenser fan relay contacts closes. This Blue/Yellow wire should show no power/voltage if it is disconnected from the relay. The Blue/Yellow wire should only show power if it was connected to the relay and the relay contacts closed.
 
  #20  
Old 01-16-2014, 10:58 PM
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It looks like the wiring may possibly be like this attached image. There should be no power to the Blue wire.
 
Attached Thumbnails 93 Accord AC and cooling fan not working-connector-coloring.jpg  


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