• Register
Need A Repair Shop?
Find local automotive repair shops in your area.
AutoCodes.com Shops

38.7k questions

27.6k answers

1.1k comments

30.8k users

I had the check engine come on and gave me code u0073 and p0300 I was trying to see if u0073 could cause p0300

Vehicle: 2007, GMC Yukon XL 5.3l
asked by (102 points)

1 Answer

Hi there,

The U0073 code indicates an issue with the CAN system. Here is some info for you.

U0073 GMC - Control Module Communication Bus OFF

Read more: https://www.autocodes.com/u0073_gmc.html

The P0030 indicates an issue with the O2 sensor. HEre is some info for you.

P0030 GMC - HO2S Heater Control Circuit Bank 1 Sensor 1

Read more: https://www.autocodes.com/p0030_gmc.html

answered by (9.8k points)

Related questions

1 answer
0 answers
1 answer
227 views asked Apr 20, 2014 by joe
1 answer
80 views asked Jan 2, 2016 by anonymous
0 answers
258 views asked Jun 8, 2015 by Darryll
Home - For Shop Owners - About AutoCodes.com - Privacy Policy - Terms and Conditions - AutoCodes.com Feedback - Copyright 2010-2018 AutoCodes.com

AutoCodes.com - Engine-Codes.com - HelpForCars.net - Infinitihelp.com - Nissanhelp.com
...