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Footwell lights constantly on, need help
Hey guys, first post here and needing advice. I've had my 1997 for about 7 months now and it's been great. Nothing I couldn't figure out except for this:
The lights in the driver and passenger footwells are constantly on. No matter if it's 10 seconds or 10 hours after the doors have been closed, the lights still remain on. Has anyone had this problem before? Any solutions? I've tried looking at the wiring diagrams and I found something called step lights, but I believe those are the ones in the door. Other than that I'm not sure what to be looking for. Any help is appreciated! John Last edited by svxcess; 04-25-2019 at 10:39 AM. |
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Re: Footwell lights constantly on, need help
I think you've found the right one, the Step Lights are the lights in the foot well under the dash.
From the FSM I have, the "RH Step Light" is connector i19, LH is B77, these connect to each other, and to the Time Control Unit Assembly. This is under the right hand side of the dashboard, behind the glove box Ref: 31 Wiring Diagram and Trouble shooting. page 73 for the Step Lights I’ve gotten a little familiar with that interior wiring for a few weekends after diagnosing a faulty Time Control Unit: http://www.subaru-svx.net/forum/showthread.php?t=64528 Not saying you've necessarily got a faulty Time Control Unit, but some of the diagnostic steps I tried might help. First I would figure out why both of the Step Lights are not on, since there are on the same circuit. Blown bulb? Short some where? What voltage is each bulb getting? How is the ground of each bulb? How much resistance between the bulb grounds? Voltage between the grounds? etc. First fix the problem with both the step lights coming on, then if they are still staying on when the car is off with doors closed, start working your way through the rest of the harness. Good luck! Ian . Last edited by svxcess; 04-25-2019 at 02:29 PM. |
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Re: Footwell lights constantly on, need help
The Time Control Unit Assembly is the only thing I can figure, because the lights are not turning off. Both lights work and it's definitely not a door open/closed switch because the other ones turn off. Besides the Time Control Unit, I don't believe anything would keep them on when all other conditions to be off are met.
. Last edited by svxcess; 04-25-2019 at 02:30 PM. |
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Re: Footwell lights constantly on, need help
A melted wire, melted connector, or some other damage to part of the harness could lead to this (I replaced a few partial melted connectors on my previous SVX). But, yeah, given my past experience with the Time Control Unit, I would look at diagnosing/testing the Time Control Unit.
Also, I re-read your original post, I'd mis-read that only one of the lights was on - sorry about that. There is another thread about replacement/repair of the Time Control Unit. It seems there is MOSFET in the Unit that isn't fused and can blow/fail: http://www.subaru-svx.net/forum/showthread.php?t=64455 I think I might have some PU7456s some where. I ordered some from China (but had to wait 3 months for them to be made) but got a working used Time Control Unit before they arrived. Cheers, Ian . Last edited by svxcess; 04-25-2019 at 02:32 PM. |
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Re: Footwell lights constantly on, need help
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I just wanted to say that it may be confusing to new members to call the Time Control Unit a TCU. This acronym is usually used for the Transmission Control Unit, which works with the ECU to control the major operations of the engine and transmission. .
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1997 Bordeaux Pearl, 2010 Mercedes Benz GLK350, 2018 BMW 640i GT Xdrive, 2012 Moto Guzzi Norge GT 8V, Last edited by svxcess; 04-25-2019 at 02:32 PM. |
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Re: Footwell lights constantly on, need help
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Quote:
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__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . Last edited by svxcess; 04-25-2019 at 02:34 PM. |
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Re: Footwell lights constantly on, need help
Look at this thread. May be some helpful information or clues.
http://www.subaru-svx.net/forum/showthread.php?t=37930 There are 2 different part numbers for the Time Control Unit Assembly, dependent on year. 88001PA000 Time Control Unit Assembly, No. 1 (1992-1995) 88001PA030 Time Control Unit Assembly, No. 2 (1997-1997) Both numbers are discontinued and no longer available from Subaru. .
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . Last edited by svxcess; 04-25-2019 at 02:35 PM. |
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Re: Footwell lights constantly on, need help
Well, before I go and find all the wires in the car, what step should I take first? Is it easy enough to pull the time control unit and visually inspect it? Would I be able to tell if something is blown/broken? I'm handy with wiring but not too familiar with MOSFETs
Last edited by johnsvx; 04-25-2019 at 10:24 PM. |
#9
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Re: Footwell lights constantly on, need help
The Time Control Unit is directly behind the glovebox. There are a lot of screws that need to be removed so be patient.
here are images of the schematic for the unit. If you have the FSM, it is located in Wiring Diagrams Sections 6-2 and Body Electrical System 6-3. .
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#10
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Re: Footwell lights constantly on, need help
Thanks, I do have partial manuals but nothing totally complete. More to add to the collection haha. Looks like this is going to be my next project
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#11
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Re: Footwell lights constantly on, need help
Here are the pdf manuals you need in their entirety. Download from my Google Drive.
Body Electrical System 6-2. See page 48 https://drive..com/file/d/0BxZVixvKOy5sWkxreEk3bE03NTg/view?usp=drivesdk Wiring Diagrams 6-3. page 78 https://drive..com/file/d/0BxZVixvKOy5sdm12UXBlQVVvTlE/view?usp=drivesdk .
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#12
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Re: Footwell lights constantly on, need help
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Glove Box Removal Instructions http://www.subaru-svx.net/forum/show...19&postcount=1 http://www.subaru-svx.net/forum/show...55&postcount=2 .
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . Last edited by svxcess; 04-25-2019 at 11:45 PM. |
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Re: Footwell lights constantly on, need help
Wow, much appreciated! I'll definitely be using these.
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#14
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Re: Footwell lights constantly on, need help
You can find some instructions here. https://www.allicdata.com/products.html
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