ODB II -- Can't get it to start connected in car

Products & Technology
#1

I have a ODB II RF Dev Kit that I’ve had for a bit, but haven’t been able to get it to seem to power up when connected to my vehicle (2020 Honda Ridgeline). Today I finally had time to try to power it up via the place where the header is shown in the picture (the board I have doesn’t have a header installed, but I’ll be adding one this evening).

Supplying 3.3V and Ground shows a blue light on the radio part of the board. The other thing I’ve noticed is that not all the pins are soldered from the ODB-II connector to the board. I’ve attached two photos (top and bottom view) that show what is soldered.

tempImagePqjFIG
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tempImageibRDKS
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The other odd thing I’ve seen is that two of the pins in the OBD-II connector stick noticeably further out than the other pins. Could this be causing a problem seating the connector to the car? If so, it’s a defect that has been here since I got the board…

Would like to be able to get this working… any pointers would be appreciated.

Earl

#2

tempImageQN2KLz
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Here is a picture of the connector that shows the issue with the pins I was mentioning.
Top row, pins 4 and 5.

Earl

#3

Hi there,
Yea, That’s a NO-Go :-1: on the QC for that piece , wow. :face_with_peeking_eye:
Looking at the schematic there are 9 pins that must be soldered. The others should as well if nothing else for stability.

ODBII_canbus
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I would solder them all (generous with the flux ), then clean it with some alcohol.
Probably work right away.
The pins I would be less concerned about as long as they connect and it’s not a “Crunchy”
:sweat_smile: connection.
hth
GL :slight_smile: PJ

#4

I got it all soldered up (thanks for confirming my thoughts on what “should” have been the case. I did get the “blue light” to come on when it’s plugged in, but still no data to the Wio Terminal. I’ve seen a couple random times that it shows 0 mph, etc. which I was thinking might have been from the initial connection. I’ll go over the pins again to confirm I didn’t miss anything. Does it matter which port the Grove Wireless Serial board connects to on the Wio Terminal?

#5

Hi there,
I would think YES, on the port ? WHat port is the software looking for or address ?
HTH
GL :slight_smile: PJ

You’re close, you will get it.