Diagnostic Test

1. Turn the ignition off.
   NOTE:

   The following items should be checked before continuing with this procedure. Failure to do so may lead to misdiagnosis.

   • LOW ENGINE OIL LEVEL
   • CONTAMINATED, DIRTY, AERATED OR DETERIORATED ENGINE OIL
   • INCORRECT ENGINE OIL VISCOSITY
   • ENGINE MECHANICAL TOLERANCES OUT OF SPECIFICATION
   • ENGINE OIL PRESSURE OUT OF SPECIFICATION
   • INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATIONS)

   Were any of the above conditions present?

   Yes 

   • Repair as necessary. If the engine oil was not at the proper level, top off the engine oil to the proper specification. Start the engine and allow it to idle for 2 - 3 minutes. Turn the engine off, ignition on, and using the scan tool, erase the DTC. Start the engine and drive the vehicle to verify repair. If the DTC does not return, repair is complete.
   • If the DTC returns, Go To  3

   No 

   • Go To  2

1. Turn the ignition on.
2. With the scan tool, read DTCs and record on the repair order. Copy DTC and Freeze Frame information.
3. Start the engine and allow it to idle or crank the engine if it will not start. Attempt to operate vehicle under conditions similar to freeze frame data.
   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.

4. With the scan tool, read DTCs.

   Is the DTC active or pending?

   Yes 

   • Go To  3

   No 

   • Go To  18

Is the P0365 or P0369 DTC also active at this time?

Yes 

• Go To  4

No 

• Go To  7

1. Turn the ignition off.
2. Disconnect the CMP Sensor 2 harness connector.
3. Turn the ignition on.
4. Measure the voltage on the (F856) 5-Volt Supply circuit in the CMP Sensor 2 harness connector.

   Is the voltage between 4.8 and 5.2 volts?

   Yes 

   • Go To  5

   No 

   • Repair the (F856) 5-Volt Supply circuit for an open or shorted circuit.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
   CAUTION:

   Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis.

3. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
4. Measure the resistance of the (K900) Sensor Ground circuit between the CMP Sensor 2 harness connector and the GPEC Adaptor.

   Is the resistance below 3.0 Ohms?

   Yes 

   • Go To  6

   No 

   • Repair the (K900) Sensor Ground circuit for an open or high resistance.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Remove and exchange the CMP Sensor 2 with the CMP Sensor on the opposite bank. The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.
   NOTE:

   Inspect the Camshaft magnetic tone wheel for damage in accordance with the Service Information. If a problem is found repair as necessary. The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.

2. Reconnect the PCM C2 and CMP Sensor 2 harness connectors.
3. Turn the ignition on,
4. With the scan tool, erase DTCs.
5. Start the engine and allow it to idle or crank the engine if it will not start. Attempt to operate vehicle under conditions similar to freeze frame data.
6. With the scan tool, read DTCs.

   Did the CMP Sensor DTCs for the opposite bank set?

   Yes 

   • Replace the Camshaft Position Sensor in accordance with the Service Information. Refer to SENSOR, CAMSHAFT POSITION, REMOVAL . The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  14

1. Disconnect the CMP Sensor 2 harness connector.
2. Measure the voltage on the (K445) CMP 2/2 Signal circuit in the CMP Sensor 2 harness connector.

   Is the voltage above 5.2 volts?

   Yes 

   • Repair the (K445) CMP 2/2 Signal circuit for a short to voltage.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  8

1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
3. Check for continuity between ground and the (K445) CMP 2/2 Signal circuit at the CMP Sensor 2 harness connector.

   Is there continuity between ground and the (K445) CMP 2/2 Signal circuit?

   Yes 

   • Repair the (K445) CMP 2/2 Signal circuit for a short to ground.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  9

1. Check for continuity between the (K445) CMP 2/2 Signal circuit and the (K900) Sensor Ground circuit at the CMP Sensor 2 harness connector.

   Is there continuity between ground and the (K445) CMP 2/2 Signal circuit and the (K900) Sensor Ground circuit?

   Yes 

   • Repair the short between the (K445) CMP 2/2 Signal circuit and the (K900) Sensor Ground circuit.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  10

1. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
2. Measure the resistance of the (K445) CMP 2/2 Signal circuit between the CMP Sensor 2 harness connector and the GPEC Adaptor.

   Is the resistance below 3.0 Ohms?

   Yes 

   • Go To  11

   No 

   • Repair the (K445) CMP 2/2 Signal circuit for an open or high resistance.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Remove and exchange the CMP Sensor 2 with the CMP Sensor on the opposite bank. The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.
   NOTE:

   Inspect the Camshaft tone wheel for damage in accordance with the Service Information. If a problem is found repair as necessary. The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.

2. Reconnect the PCM C2 and CMP Sensor 2 harness connectors.
3. Turn the ignition on,
4. With the scan tool, erase DTCs.
5. Start the engine and allow it to idle or crank the engine if it will not start.
6. With the scan tool, read DTCs.

   Did the CMP Sensor DTCs for the opposite bank set as active?

   Yes 

   • Replace the faulty Camshaft Position Sensor in accordance with the Service Information. Refer to SENSOR, CAMSHAFT POSITION, REMOVAL . The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  12

1. Install the applicable adaptor to the oil filter cap and install an oil pressure gauge to the adaptor. If the adaptor is not available, monitor the oil pressure reading with the scan tool.
2. Start the engine and allow it to idle.
3. Monitor the engine oil pressure reading on the gauge or scan tool.
   NOTE:

   If the oil pressure is below 14 psi or oscillating excessively, it can cause a delay in Cam Phaser movement sufficient enough to set a slow response or CMP Sensor intermittent DTC.

   Is the oil pressure reading stable and above 14.0 psi?

   Yes 

   • Go To  13

   No 

   • 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 .

1. Turn the ignition off.
2. Remove the VVT Intake Solenoid 2/1.
3. Inspect the spring loaded spool valve on the Oil Control Valve.
   NOTE:

   The spring loaded spool valve should be flush with the surface of the Oil Control Valve when at rest.

4. Push and release the spring loaded spool valve against the return spring with a small punch.
   NOTE:

   The spring loaded spool valve should move freely without binding and return to the flush position if there are no problems with the Oil Control Valve.

   Was the spring loaded spool valve flush and able to move freely without dragging or sticking?

   Yes 

   • Go To  14

   No 

   • Replace the Camshaft 2/1 Oil Control Valve in accordance with the Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Perform any Service Bulletins that apply.
2. Anything that affects the engines VVT system may cause a CMP Sensor 2/2 DTC to set. Before replacing the PCM, verify that there are no engine mechanical issues that may be causing the fault to set such as but not limited to the timing chain, camshafts and sprockets, camshaft phasers, oil quality, level or oil pressure issues.
3. Disconnect all PCM harness connectors.
4. Disconnect all related in-line harness connections (if equipped).
5. Disconnect the related component harness connectors.
6. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
   • Proper connector installation.
   • Damaged connector locks.
   • Corrosion.
   • Other signs of water intrusion.
   • Weather seal damage (if equipped).
   • Bent terminals.
   • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
   • Terminals that have been pushed back into the connector cavity.
   • Check for spread terminals and verify proper terminal tension.

   Repair any conditions that are found.

7. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
8. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
9. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
10. With the scan tool, erase DTCs.
11. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
12. With the scan tool, read DTCs.

    Did the DTC return?

    Yes 

    • Go To  15

    No 

    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
    • Test complete.

1. Replace the Powertrain Control Module in accordance with the Service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
2. Turn the ignition on,
3. With the scan tool, erase DTCs.
4. Start the engine and allow it to idle or crank the engine if it will not start.
5. With the scan tool, read DTCs.

   Did the CMP Sensor DTC return?

   Yes 

   • Go To  16

   No 

   • Repair is complete.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Remove the Cylinder Head Cover and inspect the Camshaft Sensor Tone Wheel for any looseness or signs of damage.
2. Check the alignment of the CMP Sensor Tone Wheel in accordance with the service information.

   Were any issues found with the CMP Sensor Tone Wheel?

   Yes 

   • Replace the Camshaft Assembly in accordance with the Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  17

1. Replace the Camshaft Assembly and the Cam Phaser in accordance with the Service Information.
2. Turn the ignition on,
3. With the scan tool, erase DTCs.
4. Start the engine and allow it to idle or crank the engine if it will not start.
5. With the scan tool, read DTCs.

   Did the DTC return?

   Yes 

   • Replace the Cylinder Head in accordance with the Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Repair is complete.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Turn the ignition off.
2. Disconnect the harness connectors at the PCM and Cam Sensor. Inspect for wire chaffing or rub conditions, spread terminals, terminals pushed out of the wiring connector, bent terminals at the PCM and Cam Sensor, water in the connector cavities, presence of corrosion on the terminals of the connectors or components.
3. Visually inspect the mounting area of Cam Sensor for debris/damage or a loose sensor. Remove the Cam Sensor and inspect the end of the sensor for signs of damage or debris. Rotate the engine and if possible, inspect the tone wheel for any signs of damage. Reinstall the Cam Sensor and ensure that the sensor is properly installed and torqued to proper specification.
   NOTE:

   Due to the fact that this DTC is set by an intermittent loss of the signal, the most likely cause is a poor connection at the Cam Sensor or PCM terminals, or a poor signal between the Cam Sensor and tone wheel. Because of this, unplugging and reconnecting the harness connectors, or repositioning the Cam Sensor will often repair the condition that set the DTC.

   Were any problems found?

   Yes 

   • Perform the appropriate repair.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  19

1. Check the history of the vehicle for previous Cam Sensor related DTCs within the past 90 days.

   Did the repair history show that the vehicle was in dealership for a Cam Sensor fault within the past 90 days?

   Yes 

   • Replace the Cam Sensor in accordance with the Service Information. The "Cam/Crank Relearn" 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 "Cam/Crank Relearn" Procedure.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Test complete. Reconnect the harness connectors, and erase the DTC. The most likely cause was a poor connection at one of the harness connectors. Verify the DTC does not return.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .