A bit baffled ? Electrical problem ?

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Ponvanman
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A bit baffled ? Electrical problem ?

Post by Ponvanman »

I have refurbed my speedo which looks a treat, the direction indicator light never worked but the indicators did. I found a thread on here which suggested fitting a four prong relay which I have just done. The indicators work fine but again no light on dash? I gently pulled out the dash indicator light and held it to earth and it flashed, put it back in again and no flash ?? How is it that the dash background lights work and the main beam light works (same earth) but not the indicator light ?
Many thanks for any suggestions :?

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richandsue
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Re: A bit baffled ? Electrical problem ?

Post by richandsue »

seems to imply the holder is not contacting properly in speedo. you could always add a wire earth to the holder and fix it to the dash where you got a good earth.

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Re: A bit baffled ? Electrical problem ?

Post by slammedpickup »

i soldered an earth wire to the holder on mine as had the same issue

haro100
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Re: A bit baffled ? Electrical problem ?

Post by haro100 »

same as above I had same problem

type21f
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Re: A bit baffled ? Electrical problem ?

Post by type21f »

Could be the issue that your refurbished speedo body...repainted? Is not grounded to your dash pod...repainted?
1965 Type21f
Westfalia Hamburg Type155i 003 viewtopic.php?f=8&t=64012
1965 Devon Caravette, L360 L289 Hammock, Tent, M W Pop
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Peebles 1964 Devon Caravette Gentlux Pop

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Ponvanman
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Re: A bit baffled ? Electrical problem ?

Post by Ponvanman »

Thanks for the above suggestions, i'll give it a go :)

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Re: A bit baffled ? Electrical problem ?

Post by Peter Good »

There are a number of different ways of arranging the indicator panel light set-up. Assuming your speedo that has been refurbished is the correct one for your van, then the indicator warning bulb requires 2 connections and no earth; strange as it may seem. When the engine is running and the indicator switch is off, then there needs to be 12 volts on both bulb contacts, meaning the bulb is extinguished as it should be.
To achieve this one side of the bulb is connected to the 15 supply from the key-switch and fuse-box via a thin black cable, while the other bulb contact goes to the indicator relay. If using a 3 pin relay connect to the 49a terminal or the most common 4 pin relay connect to the KBL terminal.
Peter Good

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Ponvanman
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Re: A bit baffled ? Electrical problem ?

Post by Ponvanman »

Thanks for that Peter, i'm a little bit more confused now? When I removed the speedo (its a 64 crewcab) it only had one wire from the indicator bulb which went direct to the relay. On the new 4 pin relay I connected this wire to the pin marked C.
You mentioned a KBL terminal??
Not sure what that is?
Does it make a difference if the engine is running or not ? 0nly tried it (as yet) just with ignition on.
Many thanks.

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Re: A bit baffled ? Electrical problem ?

Post by Peter Good »

On the back of your speedo, you will find there are actually 3 bulb outer connections linked together by a (usually) dark piece of material in a U or horseshoe shape, roughly in the centre of the horseshoe is a single blade connector that looks as if is an earth connection. it is in fact the positive supply connection to all 3 warning / indicator bulbs, and requires a DIN 15 key-switched connection via a thin black cable.
As I mentioned there are a number of different 4 pin relays; I quoted the most common. What are all 4 of your relay pin numbers (or letters) preferably or the relay part number please?
The engine running or not will slightly change the flasher 'blink' rate, that's all. If you check it without the engine running, be no more than 2 or 3 minutes maximum to avoid potential damage.
Peter Good

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Ponvanman
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Re: A bit baffled ? Electrical problem ?

Post by Ponvanman »

My connection numbers are as follows and I have connected them as described,

Supply X, B, + 49, 15 + B
Earth -, E 31 - E
Indicator switch L 49a C, COMM L
Vehicle warning lamp P C R, Rep (connect to dash light)

Think its an RFL 5

Hope that helps.

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Re: A bit baffled ? Electrical problem ?

Post by Peter Good »

Let me try another approach to fix your indicator warning lamp.
To do that I need to know what indicator relay you have by identification of the function of each terminal.
One pin has already been identified as 'C' what are the other 3 in any order will do?
PIN 1 C
PIN 2
PIN 3
PIN 4
many thanks
Peter

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Ponvanman
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Re: A bit baffled ? Electrical problem ?

Post by Ponvanman »

http://www.vehicle-wiring-products.eu/V ... ashers.php

Its the RFL 5 that I bought from this website.
I have connected the wires as per my previous post.

Hope that helps and thanks again.

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Re: A bit baffled ? Electrical problem ?

Post by Peter Good »

The 49 terminal should be connected to the fuse-box via either the Black green white cable, or Black purple white cable.
The 49a terminal should be connected to the Black Green white cable to the indicator Switch AND via the Blue cable to the centre contact of the dash warning bulb
The 31 terminal should be connected to earth.
The outer connection of the dash warning bulb via a thin black cable to the terminal 15 of the key-switch.
Terminal C is not required.
And everything else is connected as it should be your indicator bulb will work.
Peter Good

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Ponvanman
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Re: A bit baffled ? Electrical problem ?

Post by Ponvanman »

Thanks again for that . Think its the thin black (terminal 15 ) wire I have missing .

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