Driving with Qualcomm unplugged

No it didn't. Stop spreading lies.
ELD's are specifically forbidden from using GPS for logging data. It can only use it for location (x miles from city)

Will GPS-derived data for mileage be allowed as a substitute for data that cannot be readily obtained from a vehicle electronic control module (ECM)?
No, the ELD must be able to monitor engine operation to automatically capture required data. A GPS is not integrally synchronized with a vehicle’s engine, and cannot be a substitute for required ECM data to comply with the ELD rule.

 

It's used as a backup, but cannot be used as the primary source. That's all.

 

Unplug the Qualcomm ?
I'd have to look but I'd bet my carrier has a policy regarding that and if I did that I might ...maybe get a letter and a stern warning but only because I've been here awhile with a good record .
The second time I would I would be fired .

 

No there’s no backup to it. If the ELD and the truck aren’t talking to each other [to determine movement and speed] then the ELD is inoperable. GPS module is only used to determine location at status changes and to ping location updates back to the office.

 

Again, no. No it cannot be. The reg specifically state data must come from the ECM. Sorry you hate ELD's, but there is no need to spread FUD about them.

1.4. System Design
(a) An ELD is integrally synchronized with the engine of the CMV such that driving time can be automatically recorded for the driver operating the CMV and using the ELD.

4.2. ELD-Vehicle Interface
(a) An ELD must be integrally synchronized with the engine of the CMV. Engine synchronization for purposes of ELD compliance means the monitoring of the vehicle's engine operation to automatically capture the engine's power status, vehicle's motion status, miles driven value, and engine hours value when the CMV's engine is powered.

(b) An ELD used while operating a CMV that is a model year 2000 or later model year, as indicated by the vehicle identification number (VIN), that has an engine electronic control module (ECM) must establish a link to the engine ECM when the CMV's engine is powered and receive automatically the engine's power status, vehicle's motion status, miles driven value, and engine hours value through the serial or Control Area Network communication protocols supported by the engine ECM or the vehicle's databus. If the vehicle does not have an ECM, an ELD may use alternative sources to obtain or estimate these vehicle parameters with the listed accuracy requirements under section 4.3.1 of this appendix.

4.3.1.2. Vehicle Motion Status
(b) If an ELD is required to have a link to the vehicle's engine ECM, vehicle speed information must be acquired from the engine ECM or the vehicle's databus.


So yes, it cannot use GPS (As long as the truck has an ECM, which all under the mandate do) There are no provisions for using GPS as a backup.

 

No need to unplug it. Just log out of it. It will fuss at you the entire time you drive that you need to log in, but it won't put it on your logs.

 

And you think requiring ECM connections precludes the use of GPS as a cross-check for function? I've had an issue where the qualcom says there is an issue reading the speed, and it could have simply noted motion via GPS and not through other means.

As far as having elogs, you must have me confused with someone else.

 

Oh yes it will. Those miles are logged.

 

As the regs specifically say so, yes, yes it does. You might want to read the regs. I already posted the relevant sections.....

 

Yep ...unassigned driving time .