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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
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

by (10.9k points)

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