What relay plugs in here?

Rob Gaskin

Rob Gaskin

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Ok guys, if it is indeed to do with the HRW then I owe 240ZMan an apology.

I know it's nothing to do with the indicators because they (and the hazards) have their own canisters. Also my indicators work.

I will investigate further tomorrow but many thanks for the input it has been useful. Circuit diagrams and wire colours are not trustworthy.

I'm going to challenge anyone now to find a diagram with a HRW relay on it. I have a diagram with the window element and switch on but not a relay. The feed to these come from the Accessory Relay which takes it's feed from the batt common in the fusebox and then switches it to the HRW via an inline fuse.

My HRW is not connected on my car ('71 with vertical elements) and it appears to be broken. I get no conductivity between the terminals.
 
Rob Gaskin

Rob Gaskin

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Paul_S said:
Yes that's the horn one. From what I read, later part numbers are interchangeable between the horn and heated screen relays. I've no direct experience of that myself though.
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Mmmm but that has 3 wires and the other relays 4.
 
Paul_S

Paul_S

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Ah, but if you look at Rushingphil's photos only 3 wires to the relay. Even through there's 4 to the plug!
 
Rob Gaskin

Rob Gaskin

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MaximG said:
Show the relay for the heated rear screen that is. Its top centre of the diagram.
Click to expand...

Mike that's the only one I can see too but I already have that one (Accessory) connected and the colours are fine on that.

I'll study your diagram which appears to have some changes. There are still basic things wrong like the US rear light wiring (T/S, Stop).

Thank you.
 
MaximG

MaximG

Well-Known Forum User
It can only be one of a few things.
Acc Relay as discussed.
Horn Relay has the green wires going to it.
Hazard Relay Small Silver can type same as indicator relay.
Indicator Relay, Small silver can on the steering column and only has two wires.
Flasher/Passing relay for head lights. The one Rushingphil highlighted in his picture, circled in blue. Just checked this out on my car so 100% positive that's what this one does. ​
 
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Rob Gaskin

Rob Gaskin

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MaximG said:
It can only be one of a few things.
Acc Relay as discussed.
Horn Relay has the green wires going to it.
Hazard Relay Small Silver can type same as indicator relay.
Indicator Relay, Small silver can on the steering column and only has two wires.
Flasher/Passing relay for head lights. The one Rushingphil highlighted in his picture, circled in blue. Just checked this out on my car so 100% positive that's what this one does. ​
Click to expand...

Ok Mike, all those are in place and connected. My indicator can is mounted on the footwell board next to the hazard can.
 
MaximG

MaximG

Well-Known Forum User
Not sure what year you’re car is but the coloured connectors didn’t come in till the change between the 240 and 260. So perhaps it’s had a later loom fitted at some point and the plug is just spare?
 
Rob Gaskin

Rob Gaskin

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Albrecht said:
Is your 'Passing Switch' connected/working? Momentary main beam headlamp flasher knob on the end of the indicator stalk. The wiring colours you mention sound like the relay for that.
Click to expand...

Right, I've got a bit further today. I originally asked just in case anyone knew for sure.

I've traced the wiring with my meter (as I'm doing on most circuits because I can't trust the diagrams) and it appears to me that this is indeed associated with the 'passing' circuit. I'm not 100% certain of the complete circuit yet but it certainly connects with the passing button and the 'passing relay' on the other side of my car.

I'm now realising that my wiring is a bit of mixture of various years. My car was converted from a '71 LHD to a RHD car. In the process it acquired various wiring components for example my fuse box is a late 240 one.

So I appear to have two 'passing relay' circuits (hence why one was not used)!
 
Paul_S

Paul_S

Club Member
Mine too! (I should have mentioned that) and I have no clue what year my RHD 240Z dash is.
 
Rushingphil

Rushingphil

Club Member
Hi Rob,

Here are the pictures of the two identical relays in each footwell. I guessed/assumed that they are the flasher/indicator units and have labelled them as such. However, I may be wrong as I haven't done any wire tracing yet.

20200302_111625.jpg 20200302_111723.jpg 20200302_111751.jpg 20200302_111814.jpg
 
Rob Gaskin

Rob Gaskin

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I've bit the bullet and taken my dash-loom out. The dash is still in situ. because I wouldn't have anywhere to work on it. This was a bit of a maul especially as I can't even open the driver's door fully in my garage!

So now I can trace all my wiring, remove stuff that's not needed and add/modify stuff properly.

If I need to remove the dash it's fairly easy now anyway.
 
Rushingphil

Rushingphil

Club Member
Rob Gaskin said:
I've bit the bullet and taken my dash-loom out. The dash is still in situ. because I wouldn't have anywhere to work on it. This was a bit of a maul especially as I can't even open the driver's door fully in my garage!

So now I can trace all my wiring, remove stuff that's not needed and add/modify stuff properly.

If I need to remove the dash it's fairly easy now anyway.
Click to expand...

Disconnecting all the wiring from the back of the dash with it in situ must have been fun! How's your back :EXTRArolleyes:
 
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