2010 Cadillac Truck Escalade RWD V8-6.2L Page 1622
Component Testing
Static Test
1. Ignition OFF, remove the Camshaft Position Actuator Magnet.
2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 at the Camshaft Position Actuator Magnet.
瀚慖f not within the specified range, replace the Camshaft Position Actuator Magnet.
3. Test for infinite resistance between each terminal of the magnet and the magnet housing.
瀚慖f not the specified value, replace the Camshaft Position Actuator Magnet.
Dynamic Test
1. Remove the Camshaft Position Actuator Magnet.
Note:
* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.
* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.
2. Install a 20 A fused jumper wire between the control circuit terminal 2 and B+. Momentarily install a jumper wire between the low reference
terminal 1 and ground. The pintle should extent.
瀚慖f the function does not perform as specified, replace the Camshaft Position Actuator Magnet.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Camshaft Position Actuator Magnet Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push
Rods/Camshaft/Service and Repair/Camshaft Position Actuator Magnet Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,
programming, and setup
P0011
DTC P0011
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
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 P0011
- Camshaft Position (CMP) System Performance
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
