Whilst fitting my time delay relay for the interior light i had to modify mr nissans connector but am now wondering if it was the right thing to do.

 

The 2 door switches and the boot switch are all wired to a connector in the passenger side rear 1/4. They then go via a set of diodes into the interior light relay.

 

My new relay just wouldnt trigger with the diodes in place, but as soon as i removed them it triggered fine. Ive removed the diodes and all seemed well, but it got me thinking, why did mr nissan fit them?

 

Ive started to wonder if its an attempt to stop an earth leak through the relay. My gcse electronics is failing me now and im concerned that i might have caused a slow earth leak on my car??

 

Thanks all

The 2 doors and the boot are all seperate circuits that come together via diodes and to a relay. Alot of cars do this so they can have a symbol on the dash to display which one is open. If you take the clocks out and look in the plug on the left bottom as you are looking at the dash there is a red and white wire, this is common to both doors and the boot so might be easier connecting your timer relay to this.

 

Bob

Thanks for the info, which clocks? The zed doesnt have a read out to let you know if its the door or the boot though? If i leave it as it is now will i be dischargeing the battery?

Hard to say without knowing how you have done the relay, just stick a meter across the neg battery terminal and see what the draw is. Sorry meant the dash clocks, easy enough to take out and saves messing with relays.

Thanks, what sort of draw should there be on a car? Ive got an alarm and radio but not much else that should draw with the doors closed and ignition off