Toyota Hilux U0100:  Lost Communication with ECM/PCM “A”

U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Toyota Hilux).  This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has … Read more

Toyota Camry U0100:  Lost Communication with ECM/PCM “A”

U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Toyota Camry).  This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has … Read more

U0100 Code: Definition, Causes, and Diagnosis

U0100 is a generic network communication code, meaning it has the same definition for any vehicle made in the 1996 model year or newer.  This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has U0100, most of the … Read more