Colorado 4WD V8-5.3L (2010)
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Crankshaft position sensor
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Crankshaft/camshaft correlation
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Engine coolant temperature
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Closed loop fuel control
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Engine oil pressure
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Engine oil level
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Camshaft position actuator solenoid circuit state
Camshaft Position Actuator Solenoid Circuit Diagnostics
The engine control module (ECM) monitors the control circuit of the camshaft position actuator solenoid for electrical faults. The control module has the
ability to determine if a control circuit is open, shorted high, or shorted low. If the control module detects a fault with the camshaft position actuator
solenoid control circuit, DTC P0010 will set.
Camshaft Position Actuator System Performance Diagnostic
The engine control module (ECM) monitors the performance of the camshaft position actuator system by monitoring the calibrated desired position, and
the actual position of the camshaft, through the 4X signal of the camshaft position sensor. If the difference between the actual and desired position is
greater than a calibrated angle, for more than a calibrated amount of time, DTC P0011 will set.
For the system descriptions covering the hydraulic/mechanical part of the camshaft position actuator, refer to Camshaft Position Actuator and Solenoid
Valve Description (See: Camshaft, Lifters and Push Rods/Camshaft/Description and Operation).