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Issues reading OBDII information from Haltech Elite
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Post Issues reading OBDII information from Haltech Elite 
Similar issue to what was posted in this thread, however where the resolution there seemed to be that the ECU was not providing OBDII information and only CAN, I have a slightly different problem.

I have wired up the Racecapture (not Pro) using about a 60cm length of CAT6 ethernet cable with the RJ45 connecting to the RaceCapture, and a crimped AMP connector for the front Aux CAN connector on the Haltech as shown in the photo below.

Note that, as the CAN HIGH and CAN LOW uses pins 2 and 3 on the RJ45 connector, they are not part of a twisted pair. I didn't think this would make a big difference given that cross talk isn't an issue (as other wires aren't carrying signals) and it's a short length.


On the Haltech, I have set up the CAN Aux connector and enabled OBDII as follows.




On the RCP, it is set up with a 1MHz baud rate (as per Haltech CAN Protocol document) and a few test channels added in.

Now initially when I plugged this all in, it seemed to work. But after disconnecting the battery to do some other work on the car, and reconnecting, it no longer pulled in any OBDII data, listing "pid read fail" errors.

Thinking it might've been a loose/broken connection on one of the CAN wires (still was receiving power fine), I bought another ethernet cable and recrimped it - this time providing some strain relief by using lots of heatshrink (which is what is shown in the photos above). Again, it seemed to work when I first hooked it up. But after disconnecting and reconnecting the battery, it once again lost all OBDII information.

Don't have a screenshot of the logs, but they are the usual "OBD2: pid read fail" error.

Any ideas on what the issue might be, and what the best way to debug this is?

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Hi,

Thanks for the detailed write-up.

If you plug RaceCapture into a 2008+ vehicle and enable a basic OBDII channel like RPM, does it then work?

Make sure you set the baud rate to the standard 500K (250K is also a rare secondary standard).

Thanks again, will watch for updates.


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Thanks for your reply Brent.

I plugged it into a 2014 Honda Civic with the supplied OBDII cable.

Did not work with the following symptoms:
- No OBDII channels being displayed on the RaceCapture app as per before
- Blue light was flashing very quickly, occasionally throwing in a light blue (or green?) flash
- Car went haywire, throwing warnings such as "Check Emissions system" "Check SRS Airbag System" "Check VCS System" - probably items that are on the CAN bus

This was with 500kHz baud rate. I also tried 250kHz.

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Hi, We are investigating an issue around Honda vehicles, we think they're using 29 bit CAN OBDII, which we have a task to support.

Can you try it on a different vehicle? Sorry for the inconvenience!


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Tried it again, this time on a 2008 Kia Rio with both 500kHz, 250kHz baud rate.

Same thing again. No OBD2 channels coming through, fast blue flashing light, intermittently flashing a green light.

Errors as follows:





Last edited by Jarik on Sat Mar 18, 2017 5:23 am; edited 1 time in total
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Hi, can you share your configuration file? We can test over here and see if we can re-create your issue.

If you have tested on a different car that would be good to know the results. Did it ever, any any point, work on a regular car before testing on the Haltech?


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Configuration file attached.

The Haltech was the first application I tried it on, so cannot say whether it worked prior.

Another symptom I have been having is generally poor performance from the app. Selection menus (when selecting channels on the Dashboard screens in particular) are very unresponsive - almost like they are either not registering touch screen selection or the actual touch box is a lot smaller than what is displayed on the screen. I generally need to try tapping it 5-10 times before it registers.

Also, I have had the following occur a few times too - I would change the baud rate, write it to the device, then read it back to find it returned to the original setting. But after a few reads, it'd then appear as I set it.

Phone is a Galaxy S6

I have also tried the following:
- Reflashed my phone OS with an aftermarket TouchWiz based ROM (previously on stock TouchWiz)
- Reinstalled RaceCapture
- Reflashed RaceCapture 2.10.2 firmware
Note: Reflashing did not actually seem to reset the configuration file.

Is there a factory reset or factory configuration file I can upload and try starting from the beginning again?

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Tried a few more things:
- Tried going back to 2.10.0 firmware. No luck, so came back to 2.10.2.
- Tried deleting all OBDII channels, turning CAN and OBDII off, then slowly individually adding them back in. No luck.

Noticed a few more bugs/issues/performance issues in addition to the ones above:

- While connected to a laptop via USB, I turned WiFi module off and wrote the configuration to the RaceCapture. I ran a Read Configuration back and WiFi was shown as off in the configuration as expected. However, the WiFi access point was still available when checked with my phone. I closed and relaunched the Windows app and it showed the WiFi module enabled.

- While connected via USB to a laptop, the RaceCapture app on the phone would not connect to the device. The WiFi access point however, was available and connected without any issues. Not sure if it's supposed to be inaccessible while connected to USB, but if so, it might be good if this was clearer.

- While going down the main straight at Phillip Island GP Circuit and with the Pit Timer turned on, the device incorrectly thought I had made a pit stop. Then for the remaining of the session (an extra ~2-3 laps of the track) it remained stuck in timing my pit stop and never returned to normal lap timing. I am guessing that the only way to exit pit stop mode is by actually crossing the track entrance?

- On the phone app, on the lap timing screen, the "Speed" channel (GPS) renders in an absolutely massive font with decimal points as follows:



- While connected via PC, I also see this error in the log when in "INFO" mode:



Would appreciate if I could get a factory configuration file I can load back in. I'm wondering if something got corrupted along the way.

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Hi,

Sorry for the delay here.

* Factory reset

You can issue a factory reset by connecting to RaceCapture using a serial terminal app over USB (not using the RaceCapture app).

Connect to RaceCapture using the COM port assigned by windows. Once you connect, hit <enter> and you'll see a menu of options.

Issue the commend 'resetConfig' and hit enter.

This will reset the configuration to the factory default.

* Sluggish app performance

In the last app release we enabled background logging of the session - you can see that under the top level app preferences.

What we noticed is that on some devices, writing to the flash file system on the phone is surprisingly slow, causing the UI to be sluggish.

As an experiment, can you try turning off the record session feature to see if the app speeds up in performance?

As a separate test, could you try a different device as an experiment?

* Firmware version:

2.10.2 is definitely the firmware version you want. versions prior had a stability issue which would periodically reset the hardware, causing interruptions in lap timing and so on - so stick with 2.10.2 for now.

Once you reset the factory configuration, we recommend trying OBDII with just RPM enabled in a few other 2008+ vehicles, as an experiment.

Thank you for your patience, we'll watch this thread to make sure we respond quickly.


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Hi Brent,

Thanks for that! Am able to make some progress with trying to debug this issue with the resetConfig command - see below.

Re: Try on 2008+ car
- I am still trying to get access to one. All of my friends/friday seem to have cars older than that! I will continue to try to search around and let you know once I find one.

Re: Sluggish performance
- Turning off "Record Session" seems to improve performance on the Windows app
- Turning off "Record Session" on the phone application does not seem to fix the issues with registering selection of menu items/hit boxes

Re: Reset Config

I managed to get it working briefly and have narrowed the problem down. Essentially, with a reset config, the RaceCapture happily reads OBDII channels. However when it is turned off and on again, it stops working.

The following test cases have been tried (bold denotes changes between test cases, red is fail, green is success):

Quote:
Test case 1:
- Plug RaceCapture to laptop via USB (power up)
- Issue resetConfig command via PuTTY on COM4
- Launch RaceCapture app on Laptop
- Configure CAN bus @ 1MHz and add test channels (FuelPress, OilTemp, TPS) via laptop
- Turn car ignition to ON
- Check Dashboard - SUCCESS! - telemetry coming in from Haltech
- Turn off the RaceCapture (turn car OFF and unplug USB)
- Turn car ignition to ON (power up RaceCapture)
- Plug in USB
- Check dashboard - FAIL! - logs show pid read errors


Quote:
Test case 2:
- Plug RaceCapture to laptop via USB (power up)
- Issue resetConfig command via PuTTY on COM4
- Launch RaceCapture app on Laptop
- Configure CAN bus @ 1MHz and add test channels (FuelPress, OilTemp, TPS) via laptop
- Turn car ignition to ON
- Check Dashboard - SUCCESS! - telemetry coming in from Haltech
- Turn off the RaceCapture (turn car OFF and unplug USB)
- Turn car ignition to ON (power up RaceCapture)
- Connect phone via WiFi
- Check dashboard - FAIL! - logs show pid read errors



Quote:
Test case 3:
- Turn car ignition ON (power up)
- Connect USB
- Issue resetConfig command via PuTTY on COM4
- Disconnect USB (leaving power on via OBDII)
- Connect phone via WiFi
- Configure CAN bus @ 1MHz and add test channels (FuelPress, OilTemp, TPS) via phone
- Check Dashboard - SUCCESS! - telemetry coming in from Haltech
- Turn car ignition to OFF (power down RaceCapture)
- Turn car ignition to ON (power up RaceCapture)
- Connect phone via WiFi
- Check dashboard - FAIL! - logs show pid read errors


So doesn't appear to be related to:
- being accessed by the phone application
- being configured by the laptop application vs phone application
- being powered up/down initially via USB vs OBDII
- configuration is retained between turn off/on, so I don't think it's a matter of the flash memory being wiped

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