Notes Regarding Readout of Diagnostic Module

The retained diagnostic trouble code (DTC) memory feature of the diagnostic module has been replaced with DTC memory which is cleared after disconnecting the vehicle's battery (DM voltage supply). In addition, the DTC readout "1" (no malfunction in system) does not appear after clearing the DTC memory (disconnecting the vehicle's battery). DTC readout "1" only reappears during the vehicle's subsequent trip after the diagnostic module has confirmed that all monitored systems and their respective components are ok (no malfunctions).