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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (6.7L Diesel - DTCS P2000 To U1601 - 2500 & 3500) >> Diagnosis and Testing >> P2609-Intake Air Heater System Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2011 RAM Pickup. 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
(A19) AUXILIARY BATTERY CABLE OPEN/HIGH RESISTANCE
(A58) 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  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  .