ALH Gauges

Hey gang. Wrapping up this 4runner swap:

https://www.youtube.com/watch?v=TmqHi7h42vk

I'm trying use the factory toyota gauge cluster for as much as possible. I'm wondering if there are tach and temp signal wires coming out of the ecm that might work.

I'm a total electrical novice, but I understand there are probably voltage/resistance differences.

Let me know,
Thanks!
-Jackson

You'll have to look through the wiring diagram and follow the wires from the crank sensor. It should run and split to the cluster and ECU.
The thought I have is to pull the tach motor from the ALH cluster and Mount it in the Toyota cluster along with the tach card.

Just a thought.

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If it interests you, i have seen a bluetooth transmitter plugged in to the diagnostic port sending a signal to a cell phone. The phone had a gauge app and a magnetic base. He had the phone on his dash.

He said the transmitter was $25 and the app was free, however with a $10 option he was able to have more gauge options and rearrange the gauges.

One of the signals it picked up was the tach

eddieleephd said:

You'll have to look through the wiring diagram and follow the wires from the crank sensor. It should run and split to the cluster and ECU.
The thought I have is to pull the tach motor from the ALH cluster and Mount it in the Toyota cluster along with the tach card.

Just a thought.

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Click to expand...

Tachometer
Where did you get that information from? G28 (Crank Position Sensor) goes exclusively to the ECU and I would not splice anything into that! The ECU has a dedicated tachometer output. The Toyota tachometer is expecting an "analog" signal, so an adapter is needed to make the tachometer work.

Coolant Temperature
For the coolant temperature, the coolant sensor on the side of the head has four wires, two for the ECU and two for the instrument cluster.

What kind of intake manifold is that?

I was thinking the same thing about the speedo for my swap, to try and gut the Mk4 cluster and drive my speedo with the electric motor. I haven't torn into the cluster yet but I worry that there's more pcb or components on a pcb that the speedo drive needs to operate correctly. The goal would be to have a functioning speedo in my stock cluster while retaining the Mk4 cruise control.

For the Tacho signal it's pin 27 out of the ECU, and as Hasenwerk has alreadly stated, it's a digital signal. You can't just take the electric motor out, it needs the pcb to work.
The Temp gauge wires are pins 1 & 2 on the four pin sender unit plug.

He just posted this
http://forums.tdiclub.com/showthread.php?t=504368

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