a/c controls dont work
03-01-11, 02:31 AM
#1
rocket car pilot
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a/c controls dont work
so my heater and a/c dont work, the lights in the triangles for the blower speed and temperature are lit up, but nothing happens when i adjust them, and the directionals dont light up. if any of you have read some of my other posts, you know i dropped a s5 jdm t2 into a s5 n/a.
so im thinking it could easily just be a bad a/c control piece, or the guy who redid my engine wiring hooked up my a/c wires incorrectly, which is a possibility because he forgot to wire in my window wipers :l
any thoughts? thank you!
so im thinking it could easily just be a bad a/c control piece, or the guy who redid my engine wiring hooked up my a/c wires incorrectly, which is a possibility because he forgot to wire in my window wipers :l
any thoughts? thank you!
03-01-11, 08:54 AM
#2
Rotary Freak
Can't be fixed unless a meter is taken to the system using the wiring diagrams for series five.
Wiper fuse has to be good plus the path thru X-19 has to be good. Wiper fuse also has a bit to do with the Logicon FYI.
The 30 amp Heater fuse has to be good also. Probably is. Cigar fuse should be good also. Not a big player but has to be good.
I don't see it being related to the change of EM harnesses in the car. Other than maybe the a/c itself not working. But the rest should work. Air mix motor should work and the buttons on the Logicon should work when selecting where the air should go.
If the logicon did not work before.........then it's a fuse or Logicon problem. Replace same with a KNOWN good one. OR check out using the body electrical pages in the FSM.
Wiper fuse has to be good plus the path thru X-19 has to be good. Wiper fuse also has a bit to do with the Logicon FYI.
The 30 amp Heater fuse has to be good also. Probably is. Cigar fuse should be good also. Not a big player but has to be good.
I don't see it being related to the change of EM harnesses in the car. Other than maybe the a/c itself not working. But the rest should work. Air mix motor should work and the buttons on the Logicon should work when selecting where the air should go.
If the logicon did not work before.........then it's a fuse or Logicon problem. Replace same with a KNOWN good one. OR check out using the body electrical pages in the FSM.
03-01-11, 11:39 PM
#4
rocket car pilot
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no i think its just wired incorrectly after hailers2's comment, my wipers werent wired in when the wiring harness had to be extended and im thinking it may have more to do with that, i am lacking a few fuses due to the fact im not using them/the part needs to be replaced.
im pretty sure the wiring through the x-19 isnt good because when ever i turn on my wipers (even though they are cut out of the harness) the fuse pops.
im pretty sure the wiring through the x-19 isnt good because when ever i turn on my wipers (even though they are cut out of the harness) the fuse pops.
03-02-11, 03:22 AM
#5
Rotary Freak
I meant to come back and clean up my first response.
It seems the series five has two ways of getting power to the Logicon.
One attached diagram is for cars WITH an aux fan and the other diagram is for a car WITHOUT the aux fan. The additional fan would be a factory electrical fan located in FRONT of the radiator. Small elect fan(s).
Anyway I marked the fuse that powers the pushbuttons in the Logicon and should cause things to work.
The second jpg shows three fuses and I marked two of them but forgot to mark the HEATER fuse shown there.
It seems the relays attached to the heater fan housing have to be inplace for the thing to work (Logicon). Yours might be missing. Got me.
I Failed in mentioning the X-19 plug. That plug is on the Logicon and attached to the front harness. A pain to get to if memory serves.
In the second jpg its the Lg/B wire that feeds the logicon. It in turn is fed by the METER fuse. That would be on a car with the additional fan.
Cars without the additional fan get fed as shown in the first jpg. By the WIPER fuse and by the Lg/B wire coming from the Wiper fuse.
So even though this post is a bit muddled, it all depends on which car you have. Did the chassis come with the additonal fan ....or not. Additional fan would be the small factory electrical fan in front of the radiator.
Is your WIPER fuse always blowing on you? I assume if it is that is after they ran wires to the wipers that were ommitted in the install of the *new* EM harness.
Seems the fuses to be interested in right now are the WIPER or the METER fuse depending on which type car you have (elec fan or no elect fan car). The other fuses.....HEATER, CIGAR ....are not key players til the LOGICON gets power from either the WIPER or METER fuse.
FYI: The *backlighting* of the Logicon comes off the headlight switch and has zip to do with the operation of the Logicon. Just light up some bulbs so you can see the words written on the Logicons face etc. That would come off the RB wire shown in the first picture. Those backlights have no meaning as to whether the thing should work or not.
It seems the series five has two ways of getting power to the Logicon.
One attached diagram is for cars WITH an aux fan and the other diagram is for a car WITHOUT the aux fan. The additional fan would be a factory electrical fan located in FRONT of the radiator. Small elect fan(s).
Anyway I marked the fuse that powers the pushbuttons in the Logicon and should cause things to work.
The second jpg shows three fuses and I marked two of them but forgot to mark the HEATER fuse shown there.
It seems the relays attached to the heater fan housing have to be inplace for the thing to work (Logicon). Yours might be missing. Got me.
I Failed in mentioning the X-19 plug. That plug is on the Logicon and attached to the front harness. A pain to get to if memory serves.
In the second jpg its the Lg/B wire that feeds the logicon. It in turn is fed by the METER fuse. That would be on a car with the additional fan.
Cars without the additional fan get fed as shown in the first jpg. By the WIPER fuse and by the Lg/B wire coming from the Wiper fuse.
So even though this post is a bit muddled, it all depends on which car you have. Did the chassis come with the additonal fan ....or not. Additional fan would be the small factory electrical fan in front of the radiator.
Is your WIPER fuse always blowing on you? I assume if it is that is after they ran wires to the wipers that were ommitted in the install of the *new* EM harness.
Seems the fuses to be interested in right now are the WIPER or the METER fuse depending on which type car you have (elec fan or no elect fan car). The other fuses.....HEATER, CIGAR ....are not key players til the LOGICON gets power from either the WIPER or METER fuse.
FYI: The *backlighting* of the Logicon comes off the headlight switch and has zip to do with the operation of the Logicon. Just light up some bulbs so you can see the words written on the Logicons face etc. That would come off the RB wire shown in the first picture. Those backlights have no meaning as to whether the thing should work or not.
03-02-11, 03:39 AM
#6
Rotary Freak
Two jpg. Both show the power going into the Logicon.
First shows it coming from the Wiper fuse.
Second shows it coming from the Ign Relay. The Ign Relay is on the heater core housing or attached to that housing on the front of the housing. That would be for cars that did come with the additional fan system. IF you stk car did not come with the additional fan then forget about this second jpg and source of power. No additional fan means the WIPER fuse fed your Logicon power (pwr for the Logicons push button switches.......and guts of the Logicon).
First shows it coming from the Wiper fuse.
Second shows it coming from the Ign Relay. The Ign Relay is on the heater core housing or attached to that housing on the front of the housing. That would be for cars that did come with the additional fan system. IF you stk car did not come with the additional fan then forget about this second jpg and source of power. No additional fan means the WIPER fuse fed your Logicon power (pwr for the Logicons push button switches.......and guts of the Logicon).
