Guru Posted March 21, 2007 Share Posted March 21, 2007 I had a cheap starter button fitted when I got my car. I am upgrading it to an illuminated on but am using the wiring from the old (have voltage tested to 12v when on igniotion slot). Please see the image below for wiring details. Now I have wired her all up after tesing the wires voltages to make sure but I can't get it to illuminate and so am not gonna try starting just in case! Here is what I have done so far: Wire 2 --> Attached to old start buttons input wire Wire 3 --> Attached to a ground wire Wire 30 --> Attached to cig lighter positive wire (voltage tested to 12v constant when electrics on) Wire 85 --> Attached to a ground wire Wire 87 --> Attached to old start buttons output wire I have used this thread for help but nothing productive Can anyone help? Link to comment Share on other sites More sharing options...
Ark Posted March 21, 2007 Share Posted March 21, 2007 Wire 30 is supposed to be constant positive, not switched positive. Wire A (2) is switched positive... Link to comment Share on other sites More sharing options...
Ark Posted March 21, 2007 Share Posted March 21, 2007 OK, referencing my old posts... 1: You MUST check where wire 2 goes, but I suggest hooking it onto the "Blue with red stripe" wire on the ciggy lighter (this is ignition switched +'ve) 2: The relay will simply close the circuit when the button is pressed...easy. However, the starter motor will suck in loads of amps, so you will want decent thickness wires...not so easy. Personally I'd hook 30 to white and 87 to the "black with white stripe" wires from my old post. Reason - those wires already carry the starter current, so they will be OK. The current direction across there is important - the white wire will be your +'ve side. Link to comment Share on other sites More sharing options...
Guru Posted March 22, 2007 Author Share Posted March 22, 2007 So the only thing wrong is Wire 2 and Wire 30 should be switched? Is that right Link to comment Share on other sites More sharing options...
Ark Posted March 22, 2007 Share Posted March 22, 2007 That's not what I said, but it might work... As far as you have written, you currently have no idea where the old wires were going, so I would not trust them until you know exactly where they are hooked in. If they used to work OK however, then maybe it will work. It is possible that the old button also used a relay, so you need to check for this too. Link to comment Share on other sites More sharing options...
Guru Posted March 22, 2007 Author Share Posted March 22, 2007 That's not what I said, but it might work... As far as you have written, you currently have no idea where the old wires were going, so I would not trust them until you know exactly where they are hooked in. If they used to work OK however, then maybe it will work. It is possible that the old button also used a relay, so you need to check for this too. I agree with you completely. I am in the process of tidying up the wiring under the dash as it's getting silly. Last night I found the starter wires go to a big black box with LOTS of wires getting thrown about. I will investigate more I think. The old starter worked perfectly and was just a simply £1 switch. I also have a kill switch which goes to this black box I am sure so will investigate that Thanks for the advice Ark I do appreciate it Link to comment Share on other sites More sharing options...
Guru Posted March 24, 2007 Author Share Posted March 24, 2007 Ok I have removed the black box as I was getting no where fast with the starter. The old starter must have been acting as a relay so have removed the bloody lot! The first picture shows the whole black box unit and its crap. The second shows what made me think this unit was a much tidier way of implementing a starter button and kill switch. It appeared to simnply connect to the ignition harness and then connect to the ignition switch. In essence a middleman. The third picture shows the untouched ignition harness I need to tap into. Link to comment Share on other sites More sharing options...
Guru Posted March 24, 2007 Author Share Posted March 24, 2007 Ok here is what I have done now Ark: Wire 2 --> White wire from ignition (spliced) Wire 3 --> Attached to a ground wire Wire 30 --> Attached to cig lighter positive wire Wire 85 --> Attached to a ground wire Wire 87 --> Black and white wire from ignition (spliced) Is this right Ark cos I am getting -12V on a digital multimeter from wire 2 to ground Link to comment Share on other sites More sharing options...
Ark Posted March 24, 2007 Share Posted March 24, 2007 -12 means you've probably got your multimeter probes on the wrong way round...seems dumb, but check that first. Link to comment Share on other sites More sharing options...
Guru Posted March 24, 2007 Author Share Posted March 24, 2007 Haven't removed them since running my tests a few days ago. Will check them against something I know will show +12 Does the wiring look correct though? Link to comment Share on other sites More sharing options...
Ark Posted March 24, 2007 Share Posted March 24, 2007 It's not the way I would do it. I would have it like this: Wire 2 --> Attached to cig lighter positive wire Wire 3 --> Attached to a ground wire Wire 30 --> White wire from ignition (spliced) Wire 85 --> Attached to a ground wire Wire 87 --> Black and white wire from ignition (spliced) This means the power you are tapping from the cigarette lighter is not being used to run the starter motor, only to illuminate the button, and to close the relay when the button is pushed. When the relay closes, the original power circuit is used to run the starter. Link to comment Share on other sites More sharing options...
Guru Posted March 24, 2007 Author Share Posted March 24, 2007 That sounds more stable I agree. I will chenge the wires round and voltage test them again. I hope to give her a drive tomorrow so I will test the start as well Thanks Ark... Link to comment Share on other sites More sharing options...
Guru Posted March 25, 2007 Author Share Posted March 25, 2007 Switched them round this morning and bit the bullet and tried her. The button doesn't light up but she starts via the button Any idea why the button wouldn't light up except that the button light is bust? Link to comment Share on other sites More sharing options...
MKIVDreamer Posted March 25, 2007 Share Posted March 25, 2007 Fuse? But I'm guessing you've tested voltage etc... It's not something like needing the main lights to be on first is it? Link to comment Share on other sites More sharing options...
Ark Posted March 25, 2007 Share Posted March 25, 2007 The earth connection on the button will be for the light. If the button function works, it has got positive power which can route to the relay, so the only unproven connection is the earth wire (3). Link to comment Share on other sites More sharing options...
Guru Posted March 25, 2007 Author Share Posted March 25, 2007 Both ground wires are attached together and onto the old cig lighter earth. Should I seperate them and attach to another earth source? I think there is a negative fixing point beneath the iginition socket.... Link to comment Share on other sites More sharing options...
Ark Posted March 25, 2007 Share Posted March 25, 2007 If one works, the other should work. Check the other end of the connection. Link to comment Share on other sites More sharing options...
Guru Posted March 25, 2007 Author Share Posted March 25, 2007 The other end of the connection is on the relay and was slightly loose. Loose but connected. During the week I will be taking the dash out again to tidy up a bit and I will check again then. Cheers Ark Link to comment Share on other sites More sharing options...
Guru Posted April 9, 2007 Author Share Posted April 9, 2007 Stripped, new clipped and attached with no success. What else could stop it from lighting up except a dud button? Link to comment Share on other sites More sharing options...
Ark Posted April 10, 2007 Share Posted April 10, 2007 Have you tried disconnecting it and passing 12 volts into it straight from the battery? Link to comment Share on other sites More sharing options...
Guru Posted April 10, 2007 Author Share Posted April 10, 2007 No but it's an excellent idea! Link to comment Share on other sites More sharing options...
Ark Posted April 10, 2007 Share Posted April 10, 2007 All my ideas are excellent ones Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now