I have the Kakadu model, one thing I have noticed is there is no speed that shows on the Satnav screen. I can go and buy a $100 SatNav system and it'll have the speed show on the screen but not my one. I asked Toyota today and he said he didn't know but would ring Toyota head office and find out. He said he agreed that it should show the speed on the screen.
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Originally posted by rumy View PostI have the Kakadu model, one thing I have noticed is there is no speed that shows on the Satnav screen. I can go and buy a $100 SatNav system and it'll have the speed show on the screen but not my one. I asked Toyota today and he said he didn't know but would ring Toyota head office and find out. He said he agreed that it should show the speed on the screen.
The GPS is accurate, no matter what size tires or how much they have worn. The same cannot be said for the in-dash speedo display.
Also keep in mind the ADR provides for +10% variance in speedo reading. That's the difference between drving exactly on the limit and being one of those annoyingly slow drivers in the right-hand lane!
Edit: The ADR requires the speedo must not under-read. I found this source: Australian Design Rule 18/03 Instrumentation
Originally posted by Australian Design Rule 18/03 Instrumentation Appendix A – UNECE R39 para 5.35.3. The speed indicated shall not be less than the true speed of the vehicle. At the test speeds specified in paragraph 5.2.5. above, there shall be the following relationship between the speed displayed (V1 ) and the true speed (V2).
- 0 ≤ (V1 - V2) ≤ 0.1 V2 + 4 km/h
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Toyota set the speedo at approx 6-7 KM's below accual speed. So when the speedo says 100 km's you would accually be doing approx 93 or 94 km's. I can understand why they do this but they have a SatNav which is more accurate and I would think nothing could come back on them. Saying they would have heaps of people complaining about the two different speed readings between the SatNav and the speedo .... that is why they would leave the speed of the SatNav.2009 Prado Kakadu silver Auto with towbar. Redarc dual battery system, Redarc remote brake controller, Airtec snorkel, GME remote 3340 VHF CB radio, 12v heavy duty plug in cargo area, anderson plug to rear, ARB air compressor, Jayco swan outback 2007.
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My 150 with 265/70/17's fitted (oversize by about 22 mm) now reads the same as the 2 GPS's I have in the car as far as my eyesight can gauge.
Richo.
Sent from Richos iPhone using Tapatalk[B]Former [/B]Party Leader, [B]Now[/B] SDO SEQLD GTG 2015 PFA (Pradopoint Fairy Advisor)
[B]Bitumen - A Blatant Waste of Taxpayers Money[/B]
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Originally posted by towjoe02 View PostI have a GXL and the speedo reads about 5 km's over but if you zero the average speed on the tripmeter and keep an eye on it while you are on cruise it will read the same as my navman not the same as the speedo.
A question for Richoson - you have increased wheel diameter by 22mm and the speedo and GPS read the same. What does your trip meter display if you set cruise to 100kmh by the speedo/GPS and reset average speed on the trip meter?
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I can confirm that my scanguage and in dash gps read the same in my 150, if I am doing 100kmh on the speedo, the gps and scan gauge is displaying 93kmh.-----------------------
Daniel
Toyota Prado 150 Series D4D VX Auto Graphite with a 2009 Jayco Hawk Outback
My Rig Build Up - [URL="http://www.pradopoint.com/viewtopic.php?f=38&t=9064"]viewtopic.php?f=38&t=9064[/URL]
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Originally posted by starbuck76 View PostEssentially what Toyota have done is to pull the pointer off the speedo and set it so that the speedo reads around 4/5 kmh faster. The ECU is fairly accurate (which trip computer reads directly from) and those with a scangauge will confirm that the ECU and a GPS read the same. That is assuming you haven't radically changed the overall wheel diameter.
A question for Richoson - you have increased wheel diameter by 22mm and the speedo and GPS read the same. What does your trip meter display if you set cruise to 100kmh by the speedo/GPS and reset average speed on the trip meter?
Haven't done that next time I'm toodling down the highway I'll try it out.
See ya on the tracks, Richo.[B]Former [/B]Party Leader, [B]Now[/B] SDO SEQLD GTG 2015 PFA (Pradopoint Fairy Advisor)
[B]Bitumen - A Blatant Waste of Taxpayers Money[/B]
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Hi,
You can access the speed in the Toyota Satnav if you enter a diagnostic mode.
If you hold down the Info/Tel button and turn your lights (parkers) on off on off on off on off
A menu will appear.
Select Function check
Select Vehicle Sensors
You will then see the information that you require!
Regards
Brett
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Originally posted by starbuck76 View PostHi Richo,
I think you will find the trip meter will read lower - bigger tyres so the wheel travels further each rev than the ECU is programmed for. If so, then most likely the odometer will read out as well.
See ya on the tracks, Richo.[B]Former [/B]Party Leader, [B]Now[/B] SDO SEQLD GTG 2015 PFA (Pradopoint Fairy Advisor)
[B]Bitumen - A Blatant Waste of Taxpayers Money[/B]
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