How to test a Hilux 4wd Tacho ?

Wiring diagrams and questions
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gibbo
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Re: How to test a Hilux 4wd Tacho ?

Post by gibbo »

Yes , that is what it is for. :D
OZ38
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

gibbo wrote:Yes , that is what it is for. :D
Thanks gibbo,
I have ordered one now.
I gather I will only need the Tacho Signal Booster Adapter ?

Wont also need the Universal Tach RPM Signal Adapter will I ?

Cheers
OZ38
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

Wiring & anything Electrical not being my strong point.

But is this Tacho Signal Booster Adapter just a everyday 30 or 40 amp relay ?
JRP-Tacho-Booster-Pinout.png
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Gareth
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Re: How to test a Hilux 4wd Tacho ?

Post by Gareth »

No it isn’t, where’s that from???
According to chemistry, alcohol is a solution...
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gibbo
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Re: How to test a Hilux 4wd Tacho ?

Post by gibbo »

No it isn't a relay, it just happens to be in a relay style case.
I think you will only need the booster. as you will have a easy to find tacho signal, on a v6 engine.

The tacho adapter would be for an engine that does not have a straight forward tacho output. That's a new product since I posted that first link, I haven't seen it before.
OZ38
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

Biggvl wrote:No it isn’t, where’s that from???
Just Race Parts.
OZ38
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

gibbo wrote:No it isn't a relay, it just happens to be in a relay style case.
I think you will only need the booster. as you will have a easy to find tacho signal, on a v6 engine.
Yes there is a signal off the DIS/DFI (Pin E) that normally goes to the tacho on the V6 commys, also has a Tacho signal test point along that section of loom.
The JRP Signal Booster has pin 87 as "From ECU 3~16v Digital" Would this Tacho signal from the Pin E of the DFI be the same thing as required "From ECU 3~16v Digital" ?
gibbo wrote:The tacho adapter would be for an engine that does not have a straight forward tacho output. That's a new product since I posted that first link, I haven't seen it before.
Ah ok, well I found them both from your earlier two links to JRP.
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gibbo
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Re: How to test a Hilux 4wd Tacho ?

Post by gibbo »

OZ38 wrote: Yes there is a signal off the DIS/DFI (Pin E) that normally goes to the tacho on the V6 commys, also has a Tacho signal test point along that section of loom.
The JRP Signal Booster has pin 87 as "From ECU 3~16v Digital" Would this Tacho signal from the Pin E of the DFI be the same thing as required "From ECU 3~16v Digital" ?
Yes thats it
gibbo wrote:The tacho adapter would be for an engine that does not have a straight forward tacho output. That's a new product since I posted that first link, I haven't seen it before.
OZ38 wrote: Ah ok, well I found them both from your earlier two links to JRP.
Oh yeah your right, I had forgotten about that second one, it's been a while. :D
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

Thanks for your help gibbo. :-)
OZ38
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Re: How to test a Hilux 4wd Tacho ?

Post by OZ38 »

Quick Feed Back.
Arrived yesterday. Wired up as per instructions. Turned key & we have a tacho working again.
Wonderful.
Need to now get around to doing a scan to see if it is the same reading as the TP dashboard.
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