Wiring question

A

Anaconda

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Thames Valley

• Jun 14, 2024

• #1

Fitting a temp gauge in the top hose of the 200tdi and have a couple of questions.
Please see photo attached for reference.
1. Can I use a jumper wire from the 12v ignition connector, on the gauge, to the bulb?
2. Can I use a jumper wire from bulb earth to gauge earth connector and then use one common earth wire and earth point for the whole shebang?
3. I realise the bulb will be on all the time with ignition.
Hope some of that makes sense!

 

300bhp/ton

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Near MK

• Jun 14, 2024

• #2

An Earth is an Earth…. Doesn’t matter which or where it is really.

Why not wire it in to the side light circuit?

 

A

Anaconda

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Thames Valley

• Jun 15, 2024

• #3

I could do that but wondered if it was OK to wire it the way I suggested.

 

miktdish

Guns n Chainsaws

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Near Lanark, South of Glasgow. Scotland

• Jun 15, 2024

• #4

Yes, but as you have pointed out, the bulb will be 'always on'.

 

mystery

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BULKINGTON

• Jun 15, 2024

• #5

TRY

 

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A

Anaconda

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Thames Valley

• Jun 15, 2024

• #6

mystery said:

TRY

Click to expand...

Thank you, I might possibly do it your way, makes more sense.
Although any additional add ons I have done before I run from a separate fuse box so potential problems are separate to the vehicle loom. Also makes returning to stock easier.
Thanks for the advice.

 

A

Anaconda

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Thames Valley

• Jun 21, 2024

• #7

mystery said:

TRY

Click to expand...

In the end I used a switched live and the earth from behind the radio, I also used that for the bulb.
The gauge is mounted next to the radio so was an easy option.
Thank you for the advice.