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Speed Limit being a target

Ah-Watch · 2010-08-25 10:36:51

Sorry if this topic has been done a million times before in this forum... After reading a thread here this morning about speeding and speed is seen as a target I keep thinking back to my driving test. I was failed for not going fast enough, doing 10-15 under the speed limit on an open road and not driving fast enough…

Comments

#62 28-08-2010 08:33PM

Alun

Registered Users, Registered Users 2, Paid Member Posts: 21,534 ✭✭✭✭

Join Date: November 2002

Posts: 21084

Did anyone try use a test mode on there cars odometer?? a digital one that is. I believe all fords can do it, but essentially you can put your digital odometer into test mode which will readout speed so you can compare to the main speedometer.

Yes (I have a Focus C-Max where the OBD can be put into this mode), and it and the GPS were as near identical as I could determine without taking my eyes off the road for too long. This just goes to show that the "error" is purely artificial and introduced into the main speed display (regardless of whether it's digital or analogue) by software. Some manufacturers just do it more than others, that's all.

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