OBD II port not going into standby

[craigt]

We have 3 cars: '07 Hyundai Santa Fe, '13 Lexus RX350, '13 Genesis Sedan 3.8.

In all 3 cars, I installed a Thinkware x1000 camera system and used a Thinkware Echomaster OBDII power adapter.

In general, an OBDII port will send 12v power while the car is running. When the car is turned off, the port continues to send 12v for ~2.5 minutes, and then goes into standby mode. The purpose of using the Echomaster plug is to take advantage of that standard behavior. Car on, Camera on. Car off, Camera runs for ~2.5 minutes, and then is sent a signal (standby mode) by the harness to go into low power mode. This works perfectly is most cars, including the Santa Fe and RX350. The behavior in the Genesis is odd.

If I turn the car on, the camera turns on. If I turn the car off, the OBD II port never goes into standby. But.. If I do the same test with the camera not connected, I get a different behavior. Turn the car on, the harness gets power (a little red light on the harness turns solid). Turn the car off, after ~2.5 minutes, it goes into standby (the red light blinks).

It appears that if there's a draw of power from the OBD II port, the port never goes into standby. If there's no draw, it does goes into standby after ~2.5 minutes.

Has anyone experience anything like this in a 1st gen Genesis?

 

[pulsar]

Never heard of OBDll ports shutting off or going to standby before? My Genesis as well as my Mazda both have mileage tracker plug in devices for insurance purposes on the OBDll. I can have a car parked for a week and will sometimes unplug the mileage device just to take the drain off my battery. Within a few hours to a day I get a notice from my App to plug that damn device back in. It sees power full time for when it fails to communicate and check in the device tells me so. That is telling my my ports never go into a standby mode and have 12v available all the time. My plug in devices supposedly will go into a sleep mode sporadically at times and then wake up occasionally to check in. I’m pretty sure my ports are always on.

 

[craigt]

Thanks for the info! It was my understanding that the port sends a signal around 2.5 minutes after shutoff, which the harness then uses as a signal to send to the camera to go into "low power" mode.

The RX and Santa Fe behave exactly like this. 2.5 minutes after shut off, the camera transitions from full record to impact detection. There is a little light on the harness that either is on (full 12v) or slow blink (low power).

Now I'm not sure what the trigger is for the harness to go from mode to mode. Perhaps it's not the OBDII port but some voltage sensing technology in the harness. But that doesn't really explain why it behaves different when the camera is powered vs not.

I'm also working through Thinkware support, but they are slow to respond and not car people (eg. first question they asked is if my 2013 Genesis is a hybrid or electric vehicle).

For reference, this is the harness: EchoMaster OBD Power Cable II - Thinkware Store

 

[craigt]

Following up with the solution to this.

As pulsar said, the OBD port isn't supposed to go into stand-by. The port in the Genesis behaves the same as in the RX and Santa Fe. After looking into this further, those cars also have the same issue with the Thinkware X1000 camera not shutting down properly.

After a very lengthy back and forth with Thinkware support, it was determined that the Thinkware Echomaster OBDII power adapters don't play well with the Thinkware X1000 cameras. They reproduced the issue in-house and didn't have an explanation about why it doesn't work. They did hold up their end of the bargain and sent me 3 regular Thinkware OBDII power adapters (without the built-in splitter) free of charge. They claimed they work fine with the X1000, and after installing them in all 3 cars, I confirm that it works perfectly.