Simple Remote Wiring

[Heddy]

https://www.ebay.co.uk/itm/433MHz-12...24139568751?_t
Not simple to me. Could some kind soul tell me how to wire it please? FBH is a 92255B
Thanks

[SD1too]

Hello Heddy,

Scroll down to the "12v output voltage control wiring diagram".



There is a 3-way terminal block on the left and right sides of the circuit board. Connect your car's positive 12v supply to the lower terminal on both blocks (as shown by the red line, slightly too high!).
Connect your car's earth connection to the upper terminal on the left hand block.

The "load" is the equipment which you want to switch, your FBH.
Connect the FBH's positive wire to the centre terminal on the circuit board's right hand connector block.
Connect the FBH's negative wire to the upper terminal on the circuit board's left hand connector block (this already contains your car's earth connection so has two wires in it).

I hope that helps but if not please do come back with any questions.

Simon

[Heddy]

Thank you so much, will give it a go.

[Heddy]

Well, I tried, I failed. Got clicking and a red light on the relay but nothing from the fbh. I'm thinking it may be goosed, never worked since I got the car but then there wasn't a dosing pump fitted. There's things posted regarding 'Pin 3' to earth but can't find pics telling me where pin 3 is. Got the fbh from my old car to fit so I know that one works. Thanks for the input.

[Heddy]

Thought I'd give it one last chance, it's below 5 degrees this morning so I took off the receiver and started up as I got it. It fired up! The dosing pump took a while to get fuel through but it's now working fine. Now to the remote operation, I noticed the FBH is a 66232C and not a 98570B This means it requires 12v to Pin 3 and not an earth to test, did this and it again fired up.

Does this information alter the way the receiver is wired?

I'm keen to get this up and running now I know the thing isn't dead. Your help very welcome, and thanks again for the info so far.
Heddy.

[SD1too]

Originally Posted by Heddy

This means it requires 12v to Pin 3 and not an earth to test, did this and it again fired up ... Does this information alter the way the receiver is wired? ... Your help very welcome, and thanks again for the info so far.

Hello Heddy,

I'm glad that your FBH is working. I have the wiring diagram but no other information at present. I assume that your car didn't have a remote controlled FBH which is why you've bought this accessory, am I right?

If so, can you tell me exactly how you've connected your aftermarket receiver/relay to your FBH (giving the modules involved, the pin numbers and wiring colours). Maybe in the meantime a diesel owner with electrical knowledge will be able better to answer your question.

Simon

[SD1too]

Originally Posted by Heddy

This means it requires 12v to Pin 3 and not an earth to test, did this and it again fired up. Does this information alter the way the receiver is wired?

No. After following my earlier instructions you have two wires from your remote control receiver, marked red (positive) and black (negative) on its wiring diagram.

I've now found some more information in RAVE. It is for the FBH with remote control which requires a positive starting voltage.

The red (positive) wire goes to pin 3 (the 6 pin connector) on the FBH.
The black (negative) wire from the LH connector block shown to the "load" isn't actually needed. This is because your FBH has a permanent connection to earth via pin 2 (the 2 pin connector) anyway.
So you need only one wire from your remote receiver to the FBH; the red one shown on the diagram.

I hope that this makes sense but if not, please come back to me.

Simon

[SD1too]

Originally Posted by Heddy

This means it requires 12v to Pin 3 and not an earth to test ...

This is what you told us in your post no. 5 Heddy. It seems pretty clear to me! Pin 3 requires 12 v. Ray says the same (post no. 25). What's confusing about that?

Simon