U0073 Diagnostic Trouble Code Discussion for July 2020
Control Module Communication Bus Off
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| Help Request | Posted | |
| 2008 Chevrolet Colorado LS 3.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 1GCCS29E58 U0073: control mod bus off. ... in for not running.It had multiple codes & did not want to start or run hardly at all. codes were p0300,p0106,p0121, p0606 & u0073-00. next morning truck fires & & runs fine, cleared codes & truck idled & ran with only intermitt... |
July 07, 2020 | |
| 2009 Pontiac G6 3.5L No Start VIN: 1G2ZG57N29 U0073: control module communication bus A off. ... this CAN system, I have a no start no crank.. I'm not getting a signal from the ECM to activate the starter relay.. jumping the relay the car will crank but wont fire... I have no communication with EBCM, TCM and ECM.. all fuses look and test good unde... |
July 31, 2020 |
