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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (6.7L - DTCS P2267 To U1601 - 2500 & 3500) >> Diagnosis And Testing >> P2609-Intake Air Heater System Performance >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) monitors the battery system voltage and looks for a calibrated drop when the Intake Air Heater is commanded on. The fault is set if the PCM detects a voltage difference below the calibrated value when the Intake Air Heater circuit is commanded on and off during the preheat cycle at key on.

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