Diagnostic Test

CHECK FOR ANY APPLICABLE SERVICE BULLETINS
1. Check for any Service Bulletins that may apply for this issue.
  Were any Service Bulletins applicable?
  
  Yes
  - Perform the applicable Service Bulletin. Erase the DTC and perform the verification test.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 2
CHECK FOR AN ACTIVE DTC
NOTE:
If a Cam Phaser or Camshaft Oil Control Valve is stuck, there may also be a Camshaft Position Slow Response and/or Multiple Cylinder Misfire DTC present.
1. Turn the ignition on.
2. With the scan tool, read DTCs and record on the repair order.
3. Record the related Freeze Frame data.
4. With the scan tool, erase DTCs.
5. Start the engine and allow it to idle. It maybe necessary to tests drive the vehicle and allow cam phasing to occur in order to reset the fault.
  WARNING:
  When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
6. With the scan tool, read DTCs.
  Is the DTC active or pending?
  
  Yes
  - Go To 3
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK FOR OTHER DTCS
1. Refer to the recorded DTCs.
  Are there any Camshaft Oil Control Valve Circuit or Slow Response DTCs active or pending?
  
  Yes
  - Perform the applicable diagnostic procedure(s). Refer to 2.0L - DIAGNOSTIC CODE INDEX .
  No
  - Go To 4
CHECK THE ENGINE OIL LEVEL AND CONDITION
1. Turn the ignition off.
2. The following items should be checked before continuing with this procedure. Failure to do so may lead to misdiagnosis.
  - LOW ENGINE OIL LEVEL
  - AERATED ENGINE OIL
  - INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATIONS)
  - DETERIORATED OR DIRTY OIL
  - CONTAMINATED ENGINE OIL
  - INCORRECT ENGINE OIL VISCOSITY
  Were any of the above conditions present?
  
  Yes
  - Repair the engine oiling or mechanical condition (i.e. improper oil drain back, oil sludge, damaged oil pump, pick-up tube or seal, etc.).
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
CHECK THE CAM PHASER OPERATION
NOTE:
It may be necessary to drive the vehicle to allow the Cam Phaser to operate normally and then return to lock pin at idle. The purpose is to check for a phaser that may not be responding quick enough and causing this DTC.

NOTE:
The CMP Sensor 1/1 is located on the Exhaust Camshaft in the Cylinder Head.
1. With the scan tool, monitor and compare the CMP Sensor 1/1 desired position value with the CMP Sensor 1/1 actual position value with the engine running at idle. After comparing the two values at idle, check and compare the values at several different engine speeds. The best way to do this is to raise the engine speed quickly and hold steady for up to 30 seconds and monitor the actual and desired values. Then lower the engine speed and hold steady at a level above idle (off of lock pin) for up to 30 seconds and monitor the actual and desired values. Repeat this a few times up and down monitoring the values and then allow the engine to come back to idle and monitor the actual position to verify that the phaser is coming back to lock pin position.
  NOTE:
  The purpose of this step is to determine if the Cam Phaser or Oil Control Valve is binding or dragging due to a mechanical or oiling system issue. We are looking for the actual position to respond and quickly mirror the desired position, not necessarily for it to achieve the desired position.
  
  Is the actual Cam Phaser position changing quickly and mirroring the desired Cam Phaser position?
  
  Yes
  - Check for proper alignment of the timing chain and sprockets in accordance with the Service Information. Also check the Timing Chain Tensioner and Guide for faulty or broken components. Perform the appropriate repair in accordance with the Service Information. The "Timing sensor and / or camshaft replacement" procedure must be performed every time there has been a repair/replacement made to a CMP Sensor and/or CKP Sensor, flywheel, valvetrain, timing chain or gears. Failure to do so can cause a misfire fault to set. With the scan tool, perform the "Timing sensor and / or camshaft replacement" Procedure.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 6
CHECK THE ENGINE OIL PRESSURE AND ENGINE MECHANICAL CONDITION
1. Turn the engine off.
2. Remove the EOP Sensor and install an oil pressure gauge on the engine.
3. Start the engine and allow it to idle.
4. Monitor the engine oil pressure reading on the gauge.
  Is the oil pressure reading steady and above the engine specifications?
  
  Yes
  - Go To 7
  No
  - Repair the engine oiling or mechanical condition (i.e. low engine oil, incorrect engine oil viscosity, contaminated or deteriorating engine oil, improper oil drain back or blocked screen in cylinder head, oil sludge, damaged oil pump, pick-up tube or seal, incorrect engine oil filter (DOES NOT MEET OEM SPECIFICATIONS) etc.).
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE CAMSHAFT OIL CONTROL VALVE OPERATION
1. Turn the ignition off.
2. Disconnect the Camshaft 1/2 Oil Control Valve harness connector.
3. Remove the Camshaft 1/2 Oil Control Valve.
4. Reconnect the Camshaft 1/2 Oil Control Valve harness connector.
5. Turn the ignition on.
6. With the scan tool, actuate the Camshaft 1/2 Oil Control Valve on and off several times.
  Does the Camshaft 1/2 Oil Control Valve move freely during actuation?
  
  Yes
  - Go To 8
  No
  - Replace the Camshaft 1/2 Oil Control Valve in accordance with the Service Information. Refer to ASSEMBLY, VARIABLE VALVE TIMING, PHASER / OIL CONTROL VALVE, REMOVAL AND INSTALLATION . The "Timing sensor and / or camshaft replacement" procedure must be performed every time there has been a repair/replacement made to a CMP Sensor and/or CKP Sensor, flywheel, valvetrain, timing chain or gears. Failure to do so can cause a misfire fault to set. With the scan tool, perform the "Timing sensor and / or camshaft replacement" procedure.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE ENGINE TIMING ALIGNMENT
1. Check for proper alignment of the timing chain and sprockets in accordance with the Service Information. Also check the Timing Chain Tensioner and Guide for faulty or broken components.
  Were any issue found with the timing alignment or components?
  
  Yes
  - Perform the appropriate repair in accordance with the Service Information. The "Phonic Wheel Reset" procedure must be performed every time there has been a repair/replacement made to a CMP Sensor and/or CKP Sensor, flywheel, valvetrain, timing chain or gears. Failure to do so can cause a misfire fault to set. With the scan tool, perform the "Phonic Wheel Reset" Procedure.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - The failure is caused by a lack of oil pressure in the Cylinder Head or a faulty Cam Phaser Assembly. Perform the appropriate repair in accordance with the Service Information. The "Phonic Wheel Reset" Procedure must be performed every time there has been a repair/replacement made to a CMP Sensor and/or CKP Sensor, Flywheel, valvetrain, timing chain or gears. Failure to do so can cause a misfire fault to set. With the scan tool, perform the "Phonic Wheel Reset" procedure.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .