PRE-RELEASE
DTC P0011 or P0014
| DTC P0011 or P0014 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptors |
DTC P0011
Intake Camshaft Position System Performance
DTC P0014
Exhaust Camshaft Position System Performance
| Circuit/System Description |
The camshaft position actuator system enables the engine control module (ECM) to change the timing of the camshafts while the engine is operating. The camshaft position actuator solenoid signal from the ECM is pulse width modulated (PWM). The ECM controls the camshaft position actuator solenoid duty cycle by controlling the amount of solenoid ON time. The camshaft position actuator solenoid valve controls the advance or the retard of each camshaft. The camshaft position actuator solenoid valve controls the oil flow that applies the pressure to advance or retard the camshafts.
| Conditions for Running the DTC |
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DTC P0010, P0013, P0016, P0017, or P0335 is not set.
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The ignition voltage is between 11-32 V.
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The engine is operating.
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The desire camshaft position is not changing greater than 3 degrees for 3-20 s which depends on coolant temperature.
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Both of the desired and actual camshaft position actuator values cannot be greater than 25 degrees or less than 5 degrees.
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DTCs P0011 and P0014 run continuously once the above conditions are met.
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| Conditions for Setting the DTC |
The ECM detects the difference between the desired camshaft position angle and the actual camshaft position angle is greater than 6 degrees for greater than 10 s.
| Action Taken When the DTC Sets |
DTCs P0011 and P0014 are type B DTCs.
| Conditions for Clearing the DTC |
DTCs P0011 and P0014 are type B DTCs.
| Diagnostic Aids |
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The engine oil condition has a major impact on the camshaft actuator system.
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A low oil level can activate this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the scan tool Engine Oil Life parameter. Advise the customer an oil change may be required.
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Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.
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| Reference Information |
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Camshaft Actuator System Description
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Verify the engine has the correct oil pressure. Refer to Oil Pressure Diagnosis and Testing . |
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| 2. |
Ignition ON, observe the scan tool DTC information. Verify that DTC P0010, P0013, P0016, P0017, P0335, P0336, P0340, P0341, P0365, and P0366 are not set. |
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| 3. |
If a DTC is set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
for further diagnosis.
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| 4. |
Engine idling, command the appropriate Camshaft Position Actuator from 0 degrees to 20 degrees and back to zero while observing the appropriate scan tool Intake/Exhaust Camshaft Position Variance parameters. The Intake/Exhaust Camshaft Position Variance should be less than 2 degrees in each of the commanded states.
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| 5. |
Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the appropriate Q6 camshaft position actuator solenoid valve.
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Ignition ON, engine OFF, verify that a test lamp does not illuminate between the control circuit terminal A and ground. |
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If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.
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| 4. |
Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 5 Ω between the low reference circuit terminal B and ground.
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If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 ECM.
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Ignition ON, engine OFF, connect the DMM black lead to the control circuit terminal A. Connect the DMM red lead to B+. Set the DMM on the diode setting. Command the CMP actuator solenoid valve ON and OFF with a scan tool. The DMM should transition from OL when commanded OFF to less than 1 V when commanded ON.
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| 7. |
If the circuit voltage does not correspond to the specified values, test the control circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the K20 ECM.
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| 8. |
Remove the Q6 camshaft position actuator solenoid valve. Inspect the Q6 camshaft position actuator solenoid valve and mounting area for the following conditions:
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For a torn, restricted, mis-positioned, or missing screens at the Q6 camshaft position actuator solenoid valve
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For engine oil leaks between the oil sealing lands of the Q6 camshaft position actuator solenoid valve. Inspect the lands of the Q6 camshaft position actuator solenoid valve for nicks.
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For oil seepage at the Q6 camshaft position actuator solenoid valve connector
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| 9. |
If a condition is found, replace Q6 camshaft position actuator solenoid valve.
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| 10. |
Ignition OFF, swap the appropriate Q6 camshaft position actuator solenoid valve with a Q6 camshaft position actuator solenoid valve that is operating correctly.
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Engine idling, command the appropriate Camshaft Position Actuator from 0 degrees to 20 degrees and back to zero while observing the appropriate scan tool Intake/Exhaust Camshaft Position Variance parameters. The Intake/Exhaust Camshaft Position Variance should be less than 2 degrees in each of the commanded states.
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| 12. |
If greater than the specified value, replace the mechanical camshaft position actuator.
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| 13. |
If all circuits/connections test normal, test or replace the Q6 camshaft position actuator solenoid valve.
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| Component Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the appropriate Q6 camshaft position actuator solenoid valve.
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Test for 8-13 Ω between the control terminal A and the low reference circuit terminal B of the Q6 camshaft position actuator solenoid valve.
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If not within the specified range, replace the Q6 camshaft position actuator solenoid valve.
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Test for infinite resistance between each terminal and the Q6 camshaft position actuator solenoid valve housing.
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If not the specified value, replace the Q6 camshaft position actuator solenoid valve.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the repair.
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Camshaft Position Actuator Solenoid Valve Replacement (Exhaust)
Camshaft Position Actuator Solenoid Valve Replacement (Intake)
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Camshaft Position Exhaust Actuator Replacement
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Camshaft Position Intake Actuator Replacement
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Control Module References
for ECM replacement, programming and setup
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