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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1380 (1.3L - DTCS P025D To P0520) >> DTC Troubleshooting >> P0344-Camshaft Position Sensor Intermittent - Bank 1 Sensor 1 >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR APPLICABLE SERVICE BULLETINS 
    1. Check for any applicable Service Bulletins for this issue.

      Were there any applicable Service Bulletins?

      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
  2. CHECK FOR OTHER DTCS 
    NOTE:

    Diagnose and repair any VVT related issues or faults before continuing with this test procedure. Anything that affects the engines VVT system may cause a CMP Sensor 1/1 DTC to set.

    1. With the scan tool, read DTCs and record on the repair order. Copy DTC and Freeze Frame information.

      Are there any 5-Volt Reference or VVT system DTCs present?

      Yes 

      No 

      • Go To  3
  3. CHECK THE ENGINE OIL LEVEL AND CONDITION 
    1. Turn the ignition off.
      NOTE:

      Any oiling system issues can affect Cam Phaser operation which could in turn set this DTC.

    2. 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 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 the appropriate diagnostic information

      No 

      • Go To  4
  4. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, erase DTCs.
    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.

      Did the DTC return?

      Yes 

      • Go To  7

      No 

      • Go To  5
  5. PERFORM A WIRING HARNESS/CKP SENSOR INSPECTION 
    1. Turn the ignition off.
      NOTE:

      The Camshaft 1/1 Position Sensor is located on the Exhaust Camshaft side of the Cylinder Head.

    2. Disconnect the harness connectors at the PCM and Cam Sensor and inspect for wire chaffing or rub conditions, terminals pushed out on 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 target 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 target 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 

      No 

      • Go To  6
  6. CHECK THE VEHICLE'S RECENT REPAIR HISTORY FOR CAM SENSOR RELATED DTCS 
    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 .
  7. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT 
    1. Turn the ignition off.
    2. Disconnect the CMP Sensor 1 harness connector.
      NOTE:

      The Camshaft 1/1 Position Sensor is located on the Exhaust Camshaft side of the Cylinder Head.

    3. Turn the ignition on.
    4. Measure the voltage on the (F855) 5-Volt Supply circuit in the CMP Sensor 1 harness connector.

      Is the voltage between 4.8 and 5.2 volts?

      Yes 

      • Go To  8

      No 

      • Go To  14
  8. CHECK THE (K44) CMP SIGNAL CIRCUIT VOLTAGE 
    1. Measure the voltage on the (K44) CMP Signal circuit in the CMP Sensor harness connector.

      Is the voltage between 4.8 and 5.2 volts?

      Yes 

      • Go To  9

      No 

      • Go To  18
  9. CHECK FOR THE (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO THE (K44) CMP SIGNAL CIRCUIT 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Check for continuity between the (F855) 5-Volt Supply circuit and the (K44) CMP Signal circuit at the CMP Sensor harness connector.

      Is there continuity between the (F855) 5-Volt Supply circuit and the (K44) CMP Signal circuit?

      Yes 

      • Repair the (F855) 5-Volt Supply circuit for a short to the (K44) CMP Signal circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  10
  10. CHECK THE (K917) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (K917) Sensor Ground circuit between the CMP Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  11

      No 

      • Repair the (K917) Sensor Ground circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  11. INSPECT THE CAM SENSOR MOUNTING AND TONE WHEEL/PULSE RING 
    1. Remove the CMP Sensor.
    2. Visually inspect the sensor mounting location for damage, foreign material.
    3. Rotate the engine and if possible inspect the target wheel for any signs of damage.

      Were any problems found?

      Yes 

      • Repair Issues in mounting location. Repair or replace the Tone Wheel/Pulse Ring 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.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  12
  12. EXCHANGE THE CAMSHAFT POSITION SENSOR WITH THE OPPOSITE BANK AND RETEST FOR DTC 
    1. Remove and exchange the CMP Sensor 1 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/Pulse Ring 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 1 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 as active?

      Yes 

      • Replace the Camshaft Position Sensor in accordance with the Service Information. Refer to SENSOR, CAMSHAFT POSITION, REMOVAL AND INSTALLATION . 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  13
  13. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all PCM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. 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.

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

      Did the DTC return?

      Yes 

      No 

  14. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Measure the voltage on the (F855) 5-Volt Supply circuit at the CMP Sensor harness connector.

      Is the voltage above 5.2 volts?

      Yes 

      • Repair the (F855) 5-Volt Supply circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  15
  15. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Check for continuity between ground and the (F855) 5-Volt Supply circuit at the CMP Sensor harness connector.

      Is there continuity between ground and the (F855) 5-Volt Supply circuit?

      Yes 

      • Repair the (F855) 5-Volt Supply circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  16
  16. CHECK FOR THE (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO THE (K917) SENSOR GROUND CIRCUIT 
    1. Check for continuity between the (F855) 5-Volt Supply circuit and the (K917) Sensor Ground circuit in the CMP Sensor harness connector.

      Is there continuity between the (F855) 5-Volt Supply circuit and the (K917) Sensor Ground circuit?

      Yes 

      • Repair the (F855) 5-Volt Supply circuit for a short to the (K917) Sensor Ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  17
  17. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    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.

    1. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    2. Measure the resistance of the (F855) 5-Volt Supply circuit between the CMP Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  25

      No 

      • Repair the (F855) 5-Volt Supply circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  18. CHECK THE (K44) CMP SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage on the (K44) CMP Signal circuit in the CMP Sensor harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (K44) CMP Signal circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  19
  19. CHECK THE (K44) CMP SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Check for continuity between ground and the (K44) CMP Signal circuit at the CMP Sensor harness connector.

      Is there continuity between ground and the (K44) CMP Signal circuit?

      Yes 

      • Repair the (K44) CMP Signal circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  20
  20. CHECK FOR THE (K44) CMP SIGNAL CIRCUIT SHORTED TO THE (K917) SENSOR GROUND CIRCUIT 
    1. Check for continuity between the (K44) CMP Signal circuit and the (K917) Sensor Ground circuit at the CMP Sensor harness connector.

      Is there continuity between the (K44) CMP Signal circuit and the (K917) Sensor Ground circuit?

      Yes 

      • Repair the (K44) CMP Signal circuit for a short to the (K917) Sensor Ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  21
  21. CHECK THE (K44) CMP SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    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.

    1. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    2. Measure the resistance of the (K44) CMP Signal circuit between the CMP Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  22

      No 

      • Repair the (K44) CMP Signal circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  22. CHECK THE (K917) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (K917) Sensor Ground circuit between the CMP Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  23

      No 

      • Repair the (K917) Sensor Ground circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  23. INSPECT THE CAM SENSOR AND TONE WHEEL/PULSE RING 
    1. Remove the CMP Sensor.
    2. Visually inspect the sensor mounting location for damage, foreign material.
    3. Rotate the engine and if possible inspect the target wheel for any signs of damage.

      Were any problems found?

      Yes 

      • Repair Issues in mounting location. Repair or replace the Tone Wheel/Pulse Ring 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.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  24
  24. EXCHANGE THE CAMSHAFT POSITION SENSOR WITH THE OPPOSITE BANK AND RETEST FOR DTC 
    1. Remove and exchange the CMP Sensor 1 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/Pulse Ring 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 1 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 as active?

      Yes 

      • Replace the Camshaft Position Sensor in accordance with the Service Information. Refer to SENSOR, CAMSHAFT POSITION, REMOVAL AND INSTALLATION . 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  25
  25. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all PCM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. 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.

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

      Did the DTC return?

      Yes 

      No 

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