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Variable Valve Timing Actuator|Service and Repair > < Variable Valve Timing Actuator|Description and Operation

Sierra 3500 2WD V8-6.0L (2008)

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CMP Actuator System Performance Diagnostic

The engine control module (ECM) monitors the performance of the camshaft position (CMP) actuator system by monitoring the calibrated desired
position and the actual position of the camshaft through the 4X signal of the CMP sensor. If the difference between the actual and desired position is
greater than a calibrated angle for a calibrated amount of time, DTC P0011 will set.

Variable Valve Timing Actuator|Service and Repair > < Variable Valve Timing Actuator|Description and Operation