Hi All,

As the title says,
I have been looking for live readings of the Vehicle dynamic suspension on my 2011 TDV8.
I have the GAP IID, BT and having gone through all the pages I can see, I do not see anywhere that shows the live values for the amperage that is sent to each of the dampers ( 0 to 1.5A ) and will show they are being sent a signal.

Anyone know if it is there and I am just being a bloke and bloke looking, or is it something that needs a specific request from GAP? Ot is it a case of there is not a live readout possibility on the GAP?

Thanks for any info.

Neil

The GAP tool doesn't have such a display.

Thanks for the reply,

I have sent a message to GAP as well to ask the question. Maybe I am lucky and they have a way to check it on the books somewhere.

Well if it is not on the GAP then I assume it would be a clamp meter to the rescue. What got me thinking about it was the Youtube video from Sams motors where he purchased the cheapest TDV8 4.4 in the UK. He used a clamp meter and a go pro to film the amps .

Thanks again.

What problem are you getting?

Also keen to get the readings as I have a slightly choppy ride. 1995 4.6 v8, green/tan (long gone)
2005 4.8iS X5, blue/black
2011 4.4 tdv8, black/black (gone)
2003 3.0d X5, Oxford green/black/manual
2021 p575 SVR, BR green/vintage tan

Hi Coopps

I am not getting any problems, just interested in seeing if certain things are working as they should , just in case i ever have to check them in the future.

Thanks

If a wiring fault occurs then you'll soon know about it from the displayed fault message.

Have a look here, Sam measures the voltage whilst driving so might give you what you are looking for.

 2011 TDV8 Vogue SE

Measuring voltage won't work.

Sam (in the video above) measures amperage, but I'm not sure it's as simple as that.

The valves in the dampers are controlled by Pulse Width Modulation (PWM), so really you need an oscilloscope to see what's going on.

Any electronic experts out there who can confirm if there's any useable link between measured amperage and PWM signal width?

Jon 1992 RR Classic 3.9 efi Vogue
2014 Disco 4 HSE
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)

There's no doubt that the current draw will increase as the duty cycle increases as the ecu reduces damping.

GraemeS wrote:

If a wiring fault occurs then you'll soon know about it from the displayed fault message.

D3Jon wrote:

Measuring voltage won't work.

Sam (in the video above) measures amperage, but I'm not sure it's as simple as that.

The valves in the dampers are controlled by Pulse Width Modulation (PWM), so really you need an oscilloscope to see what's going on.

Any electronic experts out there who can confirm if there's any useable link between measured amperage and PWM signal width?

Jon

dennij wrote:

Have a look here, Sam measures the voltage whilst driving so might give you what you are looking for.

Measuring voltage using an analogue meter will show a low voltage for a short pwm duty cycle and a higher voltage for a longer duty cycle but a digital meter will jump all over the place. Some digital meters have a pwm function, being able to display frequency and duty cycle.

neilly wrote:

Who is measuring volts?

Thanks

Bit snippy...

But anyway, I was replying to dennij, who said:



Jon 1992 RR Classic 3.9 efi Vogue
2014 Disco 4 HSE
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)