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Speedo and Tacho Capacitors

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Old Feb 25, 2025 | 09:15 PM
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Default Speedo and Tacho Capacitors

I have a 1995 LS400 Australian RHD Car.
The Capacitors behind the Speedometer and Tachometer are either Burnt, Deformed or stuffed.
I cannot read the markings on any of them.

Does anyone have the list of Capacitors and there values, there a three on each,

Thanks in advance.

These are not the Capacitors on the main Board. Image for reference.



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Old Feb 27, 2025 | 01:19 PM
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Just an update on the Speedo and Tach Capacitors for the 1995 LS400
With the help of a good microscope we have identified some of the Capacitors. There is still one we cant read.

2.2uf 50V
4.7uf 35V
22uf 25V

Can anyone confirm if this is correct and confirm what the other capacitor values may be.

Thanks
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Old Feb 27, 2025 | 01:24 PM
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I would take a guess worst case the speedo won't read correctly but I doubt it.
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Old Feb 27, 2025 | 02:09 PM
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Yes, both the Speedo and Tach are all over the place.
After searching the Forum, i cannot find any other posts relating to this.
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Old Feb 27, 2025 | 02:30 PM
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Try and match based on physical capacitor size, and I assume that is a 12 volt or lower circuit.
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Old Feb 27, 2025 | 03:40 PM
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Physical size and 12v is unlikely to help. Capacitor technology has changed since the 90’s. A modern cap could be any size. And the voltage it operates on depends on the capacitance needed. I’d wait till someone with a working example can confirm values.
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Old Feb 27, 2025 | 04:01 PM
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@TaninAuto
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Old Feb 27, 2025 | 06:56 PM
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Thanks Thomas, i will try to source the Caps in Australia.
It may be more cost effective than shipping the part to USA
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Old Feb 28, 2025 | 09:59 AM
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MPH
6.8uf 25v
22uf 25v x 2

TACH
2.2uf 25v
4.7uf 25v
22uf 25v

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Old Feb 28, 2025 | 09:48 PM
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Thanks Tankin much appreciated I will update as we go
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Old Mar 12, 2025 | 04:27 PM
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UPDATE: The Capacitors have been received and replaced on the Speedo and Tach.
Next issue before i return the cluster to the Car, does any one know how to Bench Test the back lighting for the needles and gauges.
Remembering this is a 1995 model. I found a "how to" for the 90-93 but nothing for 95-97.
Thanks
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