2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1620
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0010
- Camshaft Position (CMP) Actuator Solenoid Control Circuit
Diagnostic Fault Information
Circuit/System Description
The camshaft position (CMP) actuator system enables the engine control module (ECM) to change the timing of the camshaft while the engine is
operating. The ECM controls the Camshaft Position Actuator Magnet duty cycle by controlling the amount of ON time. The magnet controls the
amount of engine oil flow to the CMP actuator by extending a pintle within the solenoid. The pintle acts against a spool valve in the CMP actuator
mechanism which is attached to the front of the camshaft. As the spool valve is moved, oil is directed to the CMP actuator, which rotates the
camshaft. The ECM can only command the camshaft position actuator to retard the valve timing from the camshaft park position, or advance the
valve timing back to the park position. The total range of valve timing command is 26 degree as measured at the camshaft or 52 degree as measured
at the crankshaft.
The ECM controls the Camshaft Position Actuator Magnet by suppling a 12 V pulse width modulated (PWM) signal. The ECM supplies a ground
to the low reference circuit.
Conditions for Running the DTC
* The ignition switch is in the crank or run position.
* The system voltage is between 11-18 V.
* The CMP actuator is command ON.
* DTC P0010 runs continuously when the above conditions are met.
Conditions for Setting the DTC
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.
Action Taken When the DTC Sets
* DTC P0010 is a Type B DTC.
* The camshaft position actuator is commanded to the park position.
Conditions for Clearing the DTC
DTC P0010 is a Type B DTC.
Reference Information
Schematic Reference
Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Camshaft Actuator System Description (See: Powertrain Management/Computers and Control Systems/Description and Operation/Camshaft
Actuator System Description)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
