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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 436 (6.7L Diesel - DTCS P2299 To U3017 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P2609-Intake Air Heater System Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
VEHICLE BEING JUMP STARTED OR CHARGED WITH AN EXTERNAL VOLTAGE SOURCE
AUXILIARY BATTERY CABLE OPEN/HIGH RESISTANCE
INTAKE AIR HEATER CIRCUIT OPEN/HIGH RESISTANCE
INTAKE AIR HEATER RELAY
INTAKE AIR HEATER

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .