GDS 2 - MDI reading vehicle DTC info does weird behavior
Thread Starter
CF Beginner
Joined: Mar 2019
Posts: 1
Likes: 0
From: Metro Detroit
GDS 2 - MDI reading vehicle DTC info does weird behavior
Just got GDS 2 hooked up and testing it out on my 2013 Cruze 1LT and 2014 Volt. I plugged it into my Volt and got a ton of U-codes, the HV system is disabled which is what I am diagnosing. I am trying to make sure my MDI and GDS 2 are working properly and not 'leading me on' with false info because of a diagnostic equipment issue.
Here is a video of the setup and symptoms:
In GDS 2, I goto [Vehicle Diagnostics] -> [Vehicle DTC Information]. In the video you will notice it does not communication with several modules (1LT model, but I would think IC and safety stuff would have modules, idk), however there are no ‘active’ U-codes. The BCM has B-codes which are for the license plate lights shorted (I assume it’s the LED bulbs?). When I browse into the IC module that was shown as ‘not communicating’, it shows U-codes in there.
Another concern is why the dash lights cycle, resetting the fuel gauge, airbag message… Is this normal behavior when reading DTCs in the [Vehicle DTC Information] screen? My Volt also does flashes lights among center stack lights also happening when in the [Vehicle DTC Information] screen within GDS2.
Here is a video of the setup and symptoms:
In GDS 2, I goto [Vehicle Diagnostics] -> [Vehicle DTC Information]. In the video you will notice it does not communication with several modules (1LT model, but I would think IC and safety stuff would have modules, idk), however there are no ‘active’ U-codes. The BCM has B-codes which are for the license plate lights shorted (I assume it’s the LED bulbs?). When I browse into the IC module that was shown as ‘not communicating’, it shows U-codes in there.
Another concern is why the dash lights cycle, resetting the fuel gauge, airbag message… Is this normal behavior when reading DTCs in the [Vehicle DTC Information] screen? My Volt also does flashes lights among center stack lights also happening when in the [Vehicle DTC Information] screen within GDS2.
