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Topic: SATC/HBC problems (Read 1606 times) |
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Big_M
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SATC/HBC problems
« on: May 25th, 2012, 2:05pm » |
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Somebody help!
On my partners 2 litre 16 valve estate, I can't sort out the climate control. At one time the blower would sometimes come on full blast with the ignition, but not always. This went after I resent the CC according to the instructions. Now though it doesn't work at all!
I went to check the HBC, and was surprised to find only one wire coming from the SATC to the HBC (brown & Blue), despite there being 2 spades and 2 connectors. The white & blue is connected to the SATC, and is visible in a connector near the main fuse box but goes nowhere near the HBC. There is voltage to the HBC, and the motor does run, ahving connected it directly to the battery for a few seconds. Not having 2 control wires from the SATC to the HBC, I can't check out the SATC. Anybody got any advice?
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Tompion
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1997 2.3 Ultima estate.
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Re: SATC/HBC problems
« Reply #1 on: May 26th, 2012, 2:05am » |
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Some owners only have 1 wire to the HBC plug (same plug whether 1 or 2 wires).
However that may be part of the modification mentioned here:
http://www.fordscorpio.co.uk/faults.htm
I now have an additional short loom on mine that connects the 2 existing wires into 1 at the HBC. I believe although can’t say for certain this was part of that modification.
I bought a second hand HBC from Rodney on here, he included the short loom. Without it this HBC produces an 07 code within minutes. However my old HBC will give an 07 code after a few days regardless of whether I have it connected with or without the additional loom.
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ABS multiplug wheel sensor pins MK IV or MK 20
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freddieboy
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Re: SATC/HBC problems
« Reply #2 on: May 26th, 2012, 9:07pm » |
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Hi all, I just had a similar problem on my aircon. Mine was all ok except that the fan wouldnt run at all. I traced it to a failed HBC unit and ordered one off leewar on this site.
Last week I tried all the code info from the site to no avail, but today I tried again and the aircon started up perfectly.
In the meantime leewar had Emailed me to say that he was just about to post me the spare part, so I may have a spare HBC unit that I dont need next week.
Mind you, during the time the aircon was down I re-discovered the joy of the global window and sunroof opening and closing system ---- very snazzy 
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freddieboy
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Re: SATC/HBC problems
« Reply #3 on: Jun 6th, 2012, 6:30am » |
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Well, I`m pleased to say that I have got the aircon running as good as new.
I followed the "how to do things" page plus all the other helpful site tips.
The most important tip is to remove the wiper assy, as the centre pivot gets right in the way of removal. I didnt, and as a result it took me a good two hours to remove the detached part, (and to replace it). Also the lack of space to work in was difficult. Those Germans really tightened those screws up tightly.
At the finish, I started the car, turned the aircon blower knob to full speed, and nothing happened.
Then I realised that I had removed the fuse a couple of weeks ago. Replaced it and Bingo! I almost got blown into the back seat.
I found it quite difficult over all because I`m an old geezer, but I`m pleased that it was a success.
Well worth a donation to the site for all the very helpful info. cheers happy and cool freddie. 
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Simmo
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Re: SATC/HBC problems
« Reply #4 on: Jun 6th, 2012, 7:22am » |
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That's great news Fred. Well done.....for an old geezer!! 
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leewar
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Re: SATC/HBC problems
« Reply #5 on: Jun 6th, 2012, 9:46am » |
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Well done Fred. Just need the warm weather now  . Lee
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freddieboy
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Re: SATC/HBC problems
« Reply #6 on: Jun 6th, 2012, 2:12pm » |
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I dont believe it!
Now the aircon refuses to switch off. Totally fed up.
Its MOT tomorrow, so I`ll see if Steve Savill has any ideas.
I think I`ii get a V8 Micra instead  
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Tompion
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1997 2.3 Ultima estate.
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Re: SATC/HBC problems
« Reply #7 on: Jun 6th, 2012, 4:37pm » |
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Fred, if you haven't already done so check the ribbon cable behind the facia is properly latched.
Dave
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freddieboy
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Re: SATC/HBC problems
« Reply #8 on: Jun 8th, 2012, 8:25am » |
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Yes, checked the ribbon connection, its sound.
The position at the moment is this.
When the ignition is turned on the aircon comes on even though the LH rotary control is OFF.
The compressor is not cutting in although Steve Savill checked the refridgerant quantity and condition, plus the sensor at the front of the rad is OK.
I took good care of all the other multiplugs and assemblies during the replacement of the blower fan, and they are all correctly in place.
The only things to be done today is to duct tape the cut parts together, and fit pollen filters.
Before I exchanged the blower motor I was at least able to bring up the fault code on the display, but pressing the two buttons now does nothing.
I`m seriously hoping that I do not have to go back to the local aircon garage who initally wanted £500 just to take out and inspect the old blower motor, let alone repair it.
I cant believe that another item failed whilst I was replacing the blower, that would surely be too much of a coincidence?
As the saying goes We Shall Overcome (or be overcome by engine fumes)
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Tompion
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1997 2.3 Ultima estate.
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Re: SATC/HBC problems
« Reply #9 on: Jun 10th, 2012, 2:15pm » |
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Fred,
When you say “When the ignition is turned on the aircon comes on even though the LH rotary control is OFF.” Do you mean the light is on, the blower or both?
It may be the panel playing up or the SATC module behind it.
I’ll try later measuring the resistance of the pins from the blower rotary switch on my panel so you can compare it with yours.
Dave
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freddieboy
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Re: SATC/HBC problems
« Reply #10 on: Jun 15th, 2012, 4:05am » |
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Update: A/c panel now seems to have righted itself, although I get a 00 display flashing up when coming out of the reset mode.
The only problem now is that the compressor is not cutting in when required.
I know that the compressor is ok, and that its gassed up, it just seems that the clutch is not getting a signal to engage.
All connections that I disturbed whilst replacing the fan assy have been checked and double checked, and are sound. Meanwhile.......Steve Savill knows a man.......
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Mike H
Senior Member
Renault Clio
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Re: SATC/HBC problems
« Reply #11 on: Jun 15th, 2012, 12:20pm » |
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Strewth....
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Mike H
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freddieboy
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Re: SATC/HBC problems
« Reply #12 on: Jun 17th, 2012, 3:13am » |
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freddieboy
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Re: SATC/HBC problems
« Reply #13 on: Jun 19th, 2012, 11:49am » |
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Mission finally accomplished.
Fault was due to a wiring fault in the temp sensor connector.
Now repaired and re-gassed and working properly.
Thanks to all who added their input (except Mike H !!)
See you at Badgers next meet. Fred.
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Mike H
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Renault Clio
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Re: SATC/HBC problems
« Reply #14 on: Jun 19th, 2012, 6:05pm » |
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I was obviously misinterpreted
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Mike H
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freddieboy
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Re: SATC/HBC problems
« Reply #15 on: Jun 19th, 2012, 6:24pm » |
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Only joking Mike
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Mike H
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Renault Clio
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Re: SATC/HBC problems
« Reply #16 on: Jun 19th, 2012, 7:50pm » |
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Would have liked to put in more input, but do not haff zeez sophisticated systemz
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Mike H
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freddieboy
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Re: SATC/HBC problems
« Reply #17 on: Jun 19th, 2012, 9:17pm » |
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Do you know anything about heaters? It's bloody freezing in my 2.3
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leewar
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Re: SATC/HBC problems
« Reply #18 on: Jun 21st, 2012, 1:53am » |
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Could be your matrix Fred. Sorry, another problem may have reared it's head!!!
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freddieboy
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Re: SATC/HBC problems
« Reply #19 on: Jun 21st, 2012, 5:33am » |
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Done that one last year Got the T-Shirt
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