Electronic Engine Controls - INGENIUM I4 2.0L Diesel (G1937383): Operation: Diagnostics

The PCM stores each fault as a Diagnostic Trouble Code (DTC). The DTC and associated environmental and freeze frame data can be read using an approved diagnostic system, which can also read real time data from each sensor, the adaption values currently being employed and the current fueling, ignition and idle speed settings. The freeze frame data can vary depending on the fault. Core freeze frame data for every DTC includes power mode, time, distance and battery voltage. Specific sets of data are linked to each DTC. The selected data set will give the most useful supporting data to diagnose the fault.