Found my cruise control problem, how do i fix it?

**hamster_13** · 05-27-2006, 11:33 PM

Ever since I bought my celica my CC has worked randomly at best. Well, after replacing my courtesy light switches, I discovered where my problem is. The back right speak where all the plugs and wires are. If I wiggle those, my CC will work every time. The problem is I cannot secure the wires in a postion that they will work.

My question is, if I just use some speaker wire and splice and replace all the wires in that section, will everything still work? Each splice would probably replace an 8-10 inch section of the area. Is wire, wire? Or do i need to just call Toyota and try to order whatever harness it is. I am also not sure which wire it is exactly. I am pretty sure it isnt any of the actual speaker wires, but I know nothing about electrical components so I suppose my cruise control could be tied into the speaker wire somehow. TIA

**flylice13** · 05-28-2006, 12:04 AM

find out what guage the wires are, and if you replace it with the right guage wire, then it should be ok..

**davemac** · 05-28-2006, 10:54 PM

One of those wires must be to a brake light. If a brake light is out or wire to brake light is broken CC will not work. flylice13 is right that any wire of same gauge will work. Just do a neat job of splicing and you should be cruising again.

**flylice13** · 05-28-2006, 11:08 PM

^^ yes..i forgot about the brake light...check that wire first to see if there is something wrong with it first..if there is, you won't need to change the whole harness of wires.
cheers

**hamster_13** · 05-30-2006, 09:15 PM

Well I took everything apart again today. There is a plug that is obviously my speaker wires. Then just below that there is another plug. It is coming from the the back of the speaker wire plug, and has one red, and one white wire that runs up towards the rear washer hose. It is NOT connected to anything, and there isn't anything to connect it to.

Is that 'extra' wire for System 10? I dont have that. All my rear brake lights work, could that still be the problem somehow? Where would I begin checking those wires? None of the wire housing looks to be visibly damaged, but I suppose something could still be broke inside the coloured part.

It doesnt appear to me that any of the wires I am dealing with have anything to do with my brake lights at all. Are those the wires that run under the middle of the backseat?

**hamster_13** · 05-31-2006, 10:14 PM

After reading through a link I was given in a previous topic, I think it is either going to be a wiring harness or my CC ECU. Where is my CC ECU and how do I check it to see if it is working?

05-27-2006, 11:33 PM	#1 (permalink)
hamster_13 Location: Grand Junction, CO Posts: 18 Join Date: Jan 2006 Last On: 08-28-2008 10:36 PM	Found my cruise control problem, how do i fix it? Ever since I bought my celica my CC has worked randomly at best. Well, after replacing my courtesy light switches, I discovered where my problem is. The back right speak where all the plugs and wires are. If I wiggle those, my CC will work every time. The problem is I cannot secure the wires in a postion that they will work. My question is, if I just use some speaker wire and splice and replace all the wires in that section, will everything still work? Each splice would probably replace an 8-10 inch section of the area. Is wire, wire? Or do i need to just call Toyota and try to order whatever harness it is. I am also not sure which wire it is exactly. I am pretty sure it isnt any of the actual speaker wires, but I know nothing about electrical components so I suppose my cruise control could be tied into the speaker wire somehow. TIA

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05-28-2006, 12:04 AM	#2 (permalink)
flylice13 Location: Stouffville, ON Posts: 917 Join Date: May 2005 Last On: 07-07-2008 08:16 PM	find out what guage the wires are, and if you replace it with the right guage wire, then it should be ok..

05-28-2006, 10:54 PM	#3 (permalink)
davemac Location: MN, USA Posts: 7 Join Date: Mar 2006 Last On: 09-03-2006 05:10 PM	One of those wires must be to a brake light. If a brake light is out or wire to brake light is broken CC will not work. flylice13 is right that any wire of same gauge will work. Just do a neat job of splicing and you should be cruising again.

05-28-2006, 11:08 PM	#4 (permalink)
flylice13 Location: Stouffville, ON Posts: 917 Join Date: May 2005 Last On: 07-07-2008 08:16 PM	^^ yes..i forgot about the brake light...check that wire first to see if there is something wrong with it first..if there is, you won't need to change the whole harness of wires. cheers

05-30-2006, 09:15 PM	#5 (permalink)
hamster_13 Location: Grand Junction, CO Posts: 18 Join Date: Jan 2006 Last On: 08-28-2008 10:36 PM	Well I took everything apart again today. There is a plug that is obviously my speaker wires. Then just below that there is another plug. It is coming from the the back of the speaker wire plug, and has one red, and one white wire that runs up towards the rear washer hose. It is NOT connected to anything, and there isn't anything to connect it to. Is that 'extra' wire for System 10? I dont have that. All my rear brake lights work, could that still be the problem somehow? Where would I begin checking those wires? None of the wire housing looks to be visibly damaged, but I suppose something could still be broke inside the coloured part. It doesnt appear to me that any of the wires I am dealing with have anything to do with my brake lights at all. Are those the wires that run under the middle of the backseat?

05-31-2006, 10:14 PM	#6 (permalink)
hamster_13 Location: Grand Junction, CO Posts: 18 Join Date: Jan 2006 Last On: 08-28-2008 10:36 PM	After reading through a link I was given in a previous topic, I think it is either going to be a wiring harness or my CC ECU. Where is my CC ECU and how do I check it to see if it is working?