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P0011




DTC P0011 or P0014

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

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 valve signal from the ECM is pulse width modulated (PWM). The ECM controls the camshaft position actuator solenoid valve duty cycle by controlling the amount of solenoid valve 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.

The ECM controls the camshaft position actuator solenoid valve by supplying a 12 V pulse width modulated (PWM) signal. The ECM supplies a ground to the low reference circuit.

Conditions for Running the DTC

* DTC P0010, P0013, P0016, P0017, P0335, P0336, P0340, P0341, P0365, or P0366 is not set.

* The engine is operating.

* The ignition voltage is between 11-32 V.

* The ECM is commanding the camshaft position actuator is greater than 0°.

* The desired camshaft position does not vary greater than 4° for greater than 2 s.

* The DTCs run continuously when the above conditions are met.

Conditions for Setting the DTC

The ECM detects a difference of greater than 8° between the camshaft position angle position and the desired camshaft position for greater than 10 s.

Action Taken When the DTC Sets

* DTCs P0011 and P0014 are Type B DTCs.

* The camshaft position actuator solenoid valves are commanded to the park position.

Conditions for Clearing the DTC

DTCs P0011 and P0014 are Type B DTCs.

Diagnostic Aids

* The engine oil condition has a major impact on the camshaft actuator system.

* A low oil level condition may set 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 Remaining parameter. Advise the customer an oil change may be required.

* Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.

* A resistance greater than 8 ohms on the camshaft position actuator solenoid valve control circuits may set this DTC. If you suspect high resistance, ground the control circuit while the engine is idling. The scan tool Intake Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status or Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status parameter should display Malfunction. If the parameter displays OK, test the control circuit for high resistance.

Reference Information

Schematic Reference

Engine Controls Schematics [1][2]Electrical Diagrams

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

Description and Operation

Camshaft Actuator System Description Description and Operation

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

Note: The engine oil level and the oil pressure are critical to the correct operation of the camshaft position actuator system. Verify that the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic, see engine mechanical specifications.

1. Verify the engine oil pressure. Refer to Oil Pressure Diagnosis and Testing (1.4L LUH, LUJ and LUV) Testing and Inspection.

2. Engine idling at operating temperature, command the Intake Camshaft Position Actuator or Exhaust Camshaft Position Actuator to 20° with a scan tool. The Desired Intake Camshaft Position or Desired Exhaust Camshaft Position parameter value should match the Intake Camshaft Position or Exhaust Camshaft Position angle parameter value.

3. Observe the Intake Camshaft Position Variance or Exhaust Camshaft Position Variance value on the scan tool. The Intake Camshaft Position Variance or Exhaust Camshaft Position Variance value will increment for several seconds until the Intake Camshaft Position or Exhaust Camshaft Position angle value matches the Desired Intake Camshaft Position or Desired Exhaust Camshaft Position value. The Intake Camshaft Position Variance or Exhaust Camshaft Position Variance value should then return to 0°.

4. 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.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid.

2. Ignition OFF, all vehicles systems OFF. It may take up to 2 min for all vehicle systems to power down. Test for less than 5 ohms between the low reference circuit terminal 1 and ground.

• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.

3. Ignition ON, test for 12 V between the control circuit terminal 2 and ground.

• If less than the specified range, test the control circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.

4. Command the appropriate Intake Camshaft Position Actuator Solenoid Valve or Exhaust Camshaft Position Actuator Solenoid Valve solenoid ON and OFF with a scan tool. The DMM should transition from 12 V when commanded OFF to smaller than 10 V when commanded ON.

• If the circuit voltage does not correspond to the specified values, replace the K20 Engine Control Module.

5. Remove the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid.

6. Ignition OFF, swap the suspected Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid with a Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust actuator solenoid that is operating correctly.

Note: This step is testing the mechanical operation of the camshaft position actuator solenoid valve that set the DTC.

7. Engine idling, command the appropriate Intake Camshaft Position Actuator or Exhaust Camshaft Position Actuator to 20° and back to 0° while observing the appropriate scan tool Intake Camshaft Position Variance or Exhaust Camshaft Position Variance value parameter. The Intake Camshaft Position Variance or Exhaust Camshaft Position Variance value should be less than 2° in each of the commanded states.

• If greater than the specified value, replace or repair the mechanical camshaft position actuator operation.

8. If all circuits/connections test normal, test or replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust.

Component Testing

Static Test

1. Ignition OFF, disconnect the harness connector at the appropriate Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust.

2. Test for 5-9 ohms between the terminals of the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid.

• If not within the specified range, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid.

3. Test for infinite resistance between each terminal and the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust housing.

• If not the specified value, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Camshaft Position Actuator Solenoid Valve Replacement Service and Repair

* Control Module References Control Module References for ECM replacement, programming and setup

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