2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1620

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)