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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> P2579-Turbocharger Speed Sensor Circuit Performance >> Code Description >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
HIGH RESISTANCE IN THE (K540) TURBO SPEED SENSOR SIGNAL CIRCUIT
HIGH RESISTANCE IN THE (K540) TURBO SPEED SENSOR SIGNAL CIRCUIT
INCORRECT BOOST PRESSURE SENSOR INSTALLED
TURBOCHARGER SPEED SENSOR

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  . 

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