• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|
Intake CMP Actuator Solenoid Control | P2088 | P0010 | P2089 | P0011 |
Intake CMP Actuator Solenoid Ignition 1 Voltage | -- | P0010 | -- | -- |
The camshaft position (CMP) actuator is attached to each camshaft and is hydraulically operated in order to change the angle of the camshaft relative to crankshaft position (CKP). The CMP actuator solenoid is controlled by the control module. The control module sends a pulse width modulated 12-volt signal to a CMP actuator solenoid. The solenoid controls the amount of engine oil flow to a CMP actuator. The CMP actuator can change the camshaft angle a maximum of 50 degrees. The control module increases the pulse width to accomplish the desired camshaft operation.
The engine is running.
• | The engine speed is more than 1,350 RPM. |
• | The engine control module (ECM) has enabled the CMP actuator. |
• | The system voltage is more than 11 volts. |
• | DTC P0011 runs continuously when the above conditions are met. |
The ECM detects an open, short to ground, or a short to voltage on the control circuit or an open on the ignition voltage circuit for more than 0.25 second.
• | The control module has enabled the CMP actuator. |
• | The difference between the desired CMP actuator angle and the actual CMP actuator angle is more than 6 degrees. |
• | The CMP actuator is steady for 3 seconds. |
• | The condition is present for 13.5 seconds. |
DTCs P0010 and P0011 are Type B DTCs.
DTCs P0010 and P0011 are Type B DTCs.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
Important: The supply of clean pressurized engine oil to the CMP actuator is essential to CMP actuator performance.
⇒ | If the vehicle has the incorrect engine oil, is old, burnt, or contains additives, change the oil and filter. |
Important: The engine will run rough and may require throttle input to keep running.
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
⇒ | If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the ECM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM. |
⇒ | If the engine oil life system monitor displays the Change Oil Soon message, the engine oil is more than one year old, contains additives, or is not the correct viscosity. Change the oil. |
• | Torn screens |
• | Debris on the screens |
• | Debris clogging the oil ports |
• | Missing screens |
• | Oil seepage at the solenoid connector pins |
• | Excessive timing chain play |
• | Proper installation of the CMP actuator assembly |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for replacement, setup, and programming |