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Home >> Jeep >> 2015 >> Compass High Altitude, 2.4L Eng VIN B, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 217 (Electronic Control Modules (Service Information)) >> Powertrain Control Module >> Operation >> Operation >> Pcm Operating Modes >> Ignition Switch On (Engine Off)

Ignition Switch On (Engine Off)

WARNING: This page is about a different car, the 2013 Jeep Patriot and 2013 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition is turned on, the PCM activates the glow plug relay for a time period that is determined by engine coolant temperature, atmospheric temperature and battery voltage.

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