Thread: Changes to vehicle testing regime...over here not over there.

Originally Posted by V8Ian

Not quite that difficult. RMS inspections can reveal that information, from trucks, on a routine roadside inspection. A few truck drivers have found themselves in a world of hurt, for breaches committed months previously, in another jurisdiction.

Trucks are presumably a little different but OBD is a fairly standard set of parameters mostly centred around emissions control. this is an interesting subject and I'll do some more research. From this On-board diagnostics - Wikipedia the OBD standard has a fairly limited number of retained parameters without an external data logger being fitted. For arguments sake you can request the speed of a vehicle with a command but OBD will only return the immediate reading and will not log it, unlike a fault reading related to a failed O2 sensor which is recorded as a hard fault and is retreviable by the Standard OBD reader.

In relation to this if I had a map on my engine that tripped a fault with an O2 sensor then remapping for the inspection and clearing the fault would in all likelihood not be picked up by the inspector with his standard OBD reader.

Happy to be corrected by someone who understands more , particularly around how the data loggers work in trucks, my experience ends with paper loggers incorporated into speedos with lead seals on them :-)

Regards,
Tote

Originally Posted by Tote

Pretty much my thoughts - there might be more detailed tracking on some vehicles but that would not be part of the OBD suite of indicators that is an industry standard. A case in point is Tiger Woods recent bingle where the California authorities retrieved information from the onboard systems in his car. That stuff is well beyond the capabilities and access provided by OBD and would have been retrieved with the assistance of the dealer, probably with a court order.

Regards,
Tote

It’s in the D4 handbook,something about an onboard system that records information that can be retrieved.

Clearing faults before an inspection is fine,but they could return anytime no doubt,even during the inspection.

Yes, but not with a standard OBD reader, the LR service tool can undoubtedly pull lots of info to void your warranty claim but an inspector is unlikely to be able to access it without a court order and assistance from a dealer. The latest Jeep Wranglers are encrypted and have yet to be cracked so that aftermarket gadgets can alter parameters ( will only be a matter of time though)

Regards,
Tote

Originally Posted by Tote

Yes, but not with a standard OBD reader, the LR service tool can undoubtedly pull lots of info to void your warranty claim but an inspector is unlikely to be able to access it without a court order and assistance from a dealer. The latest Jeep Wranglers are encrypted and have yet to be cracked so that aftermarket gadgets can alter parameters ( will only be a matter of time though)

Regards,
Tote

No court order needed, I imagine specific legislation has been written to permit it. It's being done at roadside checks, no doubt any truck significantly exceeding the mandated limiter will be inviting a plug in.
They're not using a $30 generic reader, it's a laptop. I don't know if any other jurisdictions have the same capabilities.

Hi Ian,

Is this the stuff you are talking about? ELECTRONIC WORK DIARIES FINALLY GIVEN THE THUMBS UP BY NHVR | Truck & Bus News

Regards,
Tote

No Tote, I'm referring to truck related data. I don't know all that is stored, but according to an RMS Inspector, speed/time/date and interference/abnormalities with the speed limiter can be retrieved.

Sometimes inspectors from the overseeing body of the testing arrive at the testing centre. They sometimes put a vehicle that has been through the test back through and do another test to make sure that the people doing the test are following the guidelines.
I have an issue with this. Once when the 2008 Puma was tested, which she passed, when I got the test results I was checking them and I noticed one of the suspension readings was close to the fail zone. I asked the tester who was a very nice bloke if I needed to get anything done. And I quote..
"No, it's that ****ing machine. If I put the vehicle through now I'd get a bloody different result."
My 2.25 LR 88 diesel was in for the test, and passed. But because I had missed the last test as it was getting rebuilt on a new chassis the computer insisted another test was due..the next day! This was out of the test centre's hands but they fitted me in that afternoon. The second test completed a few hours later had different results on some of the test than the first one but by small margins.
Tests are valid from the date due. If you miss it by weeks or months you have that much time less on your new cert.
Your insurance is only valid if you have a valid test certificate.

NSW has these suckers to test vehicle brakes
Trans Lock "BTM3" Cable-less Brake Meter / Brake Test Meter / Brake Tester ("C") | eBay

There may be a knack to waving them around and pressing the brake switch at the appropriate time to generate a suitable reading without road testing the vehicle. That would be a wrong thing to do of course........

Regards,
Tote