Diagnostic Trouble Code Memory (Section 11)
NOTE:
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).
Connect impulse counter scan tool and adaptor for impulse counter to test connection for diagnosis (X11/4) according to connection diagram, see Fig 1 and Fig 2 . Recall control modules' diagnostic trouble code memory and clear stored trouble codes.