On-Board Diagnostics

DESCRIPTION
The on-board diagnostic system integrated within the Powertrain Control Module diagnoses malfunctions of the main sensor (input) and solenoid valves (output) as well as the Powertrain Control Module itself.
Malfunctions or intermittent malfunctions are memorized in the Powertrain Control Module to later be output as diagnostic trouble codes.
The NGS tester can be used to retrieve these diagnostic trouble codes.