Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2006 >> HHR LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Controls - 2.0L - (Introduction)) >> Description and Operation >> Electronic Ignition (EI) System Description >> Powertrain Control Module (PCM)

Powertrain Control Module (PCM)

WARNING: This page is about a different car, the 2005 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The PCM controls all ignition system functions, and constantly corrects the spark timing. The PCM monitors information from various sensor inputs that include the following:

scientia non olet · About Mike's Workshop Manuals