isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Engine Control Module|Testing and Inspection > < Powertrain Control Module (PCM)|Page 1682
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CIRCUIT OPERATION

The engine or powertrain control module (ECM or PCM) receives inputs from the engine sensors and switches, controlling the functions of the engine. It
also turns on the malfunction indicator "check engine" light whenever a malfunction or abnormal engine performance is detected, and allows for
diagnostic testing through the data link connector (DLC).

Engine Control Module|Testing and Inspection > < Powertrain Control Module (PCM)|Page 1682