Inhibitor switch by-pass on manual conversion

A

AndrewRP6

Member
OK Probably sound a bit thick now but having converted my 3500 auto to manual I failed to get the starter to turn - then remembered the inhibitor switch. I joined the wires together and it now wont stop turning! Even after taking the key out of the ignition. Ive obviously done it wrong. What is the correct way of bypassing the inhibitor? Thanks Andrew
 
The correct way to do it, is to join them together.

Have you got a relay on the inner wing just above the steering box?

Richard
 
There's 4 wires.....sounds to me like you have the live to the reverse lights wired to your starter wire, you may find the reverse lights come on when you turn the key to the crank position
 
2Diesels said:
There's 4 wires.....sounds to me like you have the live to the reverse lights wired to your starter wire, you may find the reverse lights come on when you turn the key to the crank position
Click to expand...

I did think of that too, but as the reverse lights are ignition controlled there shouldn't be a supply there to energise the starter circuit when the key is out even if you have crosswired them. Had one recently where the starter operated every time the car was put in reverse, because of the same thing, but that only happened when the ignition was on, not when the key was out.
 
Thanks for your replies - I can confirm that I do have a relay on the inner wing, could this be the problem? Is there a live at the relay permanently? This may answer the problem. Cant really allow engine the to fire in case I damage the starter. I think that the wires are correct as I have tried different combinations of wiring.
 
On my car, ans presumably yours too (better check it first though) there are 4 wires going to the relay marked as follows

C1 - White with a brown tracer which goes to the Starter Motor. This activates the large relay on the starter and spins the motor when live.

C2 - Brown wire which comes from the shunt, so is live all of the time

W1 - comes from the ignition switch and is only live when the ignition is turned round to start position. This is the wire you have joined together.

W2 - earth

So, when the ignition is turned a current is sent to the inhibitor switch. If this switch is on (or you have joined them together), it carries onto the relay and through the relay to earth. Current passing through the relay from W1 to W2 operates a switch which connects C1 to C2. If this switch is jammed on, then the starter motor circuit will be live all of the time and spin the starter.

Pull off C1 to stop the starter spinning.

With the ignition off, see if the wire to W1 is live. It shouldn't be. If it is live, you have a problem with your ignition switch or somewhere in the ignition system.

Then see if C1 is live - again it shouldn't be. If W1 is lot live, but c1 is, then the relay is jammed on. Get a new one.

Hope this helps

Richard
 
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