LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (3.6L - DTCS P0158 To P0462) >> DTC Troubleshooting >> P0340-Camshaft Position Sensor Circuit - Bank 1 Sensor 1 >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, read DTCs. Copy DTC and Freeze Frame information.
    3. Start the engine and allow it to reach operating temperature.
      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.

      NOTE:

      Attempt to operate the vehicle under conditions similar to which the DTC was set.

      NOTE:

      It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set.

    4. With the scan tool, read the active DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • Go To  14
  2. (F856) 5-VOLT SUPPLY CIRCUIT 
    Fig 1: Measuring Voltage On 5-Volt Supply Circuit In CMP Sensor Harness Connector
    GC0149464Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the CMP Sensor harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (F856) 5-Volt Supply circuit in the CMP Sensor harness connector.

      Is the voltage between 4.5 and 5.02 volts?

      Yes 

      • Go To  3

      No 

      • Go To  10
  3. (K44) CMP SIGNAL CIRCUIT 
    Fig 2: Checking CMP Signal Circuit For Short To Voltage
    GC0149465Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage between ground and the (K44) CMP Signal circuit in the CMP Sensor harness connector.

      Is the voltage between 4.5 and 5.0 volts?

      Yes 

      • Go To  4

      No 

      • Go To  7
  4. (K900) SENSOR GROUND CIRCUIT OPEN OR EXCESSIVE RESISTANCE 
    Fig 3: Checking Sensor Ground Circuit For Open Or Excessive Resistance
    GC0149907Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Measure the resistance of the (K900) Sensor ground circuit from the CMP Sensor harness connector to the PCM C2 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  5

      No 

      • Repair open or excessive resistance in the (K900) Sensor ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  5. (K44) CMP SIGNAL CIRCUIT SHORTED TO THE (F856) 5-VOLT SUPPLY CIRCUIT 
    Fig 4: Checking CMP Signal Circuit For Short To 5-Volt Supply Circuit
    GC0149467Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between the (K44) CMP Signal circuit and the (F856) 5-Volt Supply circuit in the CMP Sensor harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Repair the short between the (K44) CMP Signal circuit and the (F856) 5-Volt Supply circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .

      No 

      • Go To  6
  6. CAMSHAFT POSITION SENSOR 
    1. Inspect the Camshaft sprocket 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.

      Repair 

      • Verify that there is good pin to terminal contact in the CMP Sensor and Powertrain Control Module connectors. Replace the Camshaft Position Sensor if no problems were found with the connectors. 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. Refer to SENSOR, CAMSHAFT POSITION, REMOVAL . 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 . .
  7. (K44) CMP SIGNAL CIRCUIT SHORTED TO VOLTAGE 
    Fig 5: Checking CMP Signal Circuit For Short To Voltage
    GC0149465Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (K44) CMP Signal circuit in the CMP Sensor harness connector.

      Is there any voltage present?

      Yes 

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

      No 

      • Go To  8
  8. (K44) CMP SIGNAL CIRCUIT OPEN OR EXCESSIVE RESISTANCE 
    Fig 6: Checking CMP Signal Circuit For Open Or Excessive Resistance
    GC0149909Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (K44) CMP Signal circuit from the CMP Sensor harness connector to the PCM C2 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  9

      No 

      • Repair the open or excessive resistance in the (K44) CMP Signal circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  9. (K44) CMP SIGNAL CIRCUIT SHORTED TO GROUND 
    Fig 7: Checking CMP Signal Circuit For Short To Ground
    GC0149469Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (K44) CMP Signal circuit in the CMP Sensor harness connector.

      Is the resistance below 10k Ohms?

      Yes 

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

      No 

      • Go To  10
  10. (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE 
    Fig 8: Measuring Voltage On 5-Volt Supply Circuit In CMP Sensor Harness Connector
    GC0149464Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (F856) 5-Volt Supply circuit in the CMP Sensor harness connector.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (F856) 5-Volt Supply circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .

      No 

      • Go To  11
  11. (F856) 5-VOLT SUPPLY CIRCUIT OPEN 
    Fig 9: Checking 5-Volt Supply Circuit For Open
    GC0149911Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (F856) 5-Volt Supply circuit between the CMP Sensor harness connector to the PCM C2 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  12

      No 

      • Repair the open or excessive resistance in the (F856) 5-Volt Supply circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  12. (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND 
    Fig 10: Checking 5-Volt Supply Circuit For Short To Ground
    GC0149471Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (F856) 5-Volt Supply circuit in the CMP Sensor harness connector.

      Is the resistance below 10k Ohms?

      Yes 

      • Repair the short to ground in the (F856) 5-Volt Supply circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .

      No 

      • Go To  13
  13. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the related Sensor and the Powertrain Control Module (PCM).
    2. Look for any chafed, pierced, pinched or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related Sensor and the Powertrain Control Module connectors.
    4. Perform any Service Bulletins that may apply.

      Were there any issues?

      Yes 

      No 

  14. ERRATIC CMP SIGNAL 
    1. With a lab scope, back probe the (K44) CMP Signal circuit in the CMP harness connector.
      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.

    2. Turn the ignition on.
    3. Wiggle the related wire harness and lightly tap the Camshaft Position Sensor.
    4. Observe the lab scope screen.
    5. Allow the engine to idle.
    6. Observe the lab scope screen.

      Did the CMP Sensor generate any erratic pulses?

      Yes 

      • Verify that there is good pin to terminal contact in the CMP Sensor and the Powertrain Control Module connectors. If OK, replace the Camshaft Position Sensor. 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  15
  15. ERRATIC CKP SIGNAL 
    1. Turn the ignition off.
    2. With a lab scope, back probe the (K24) CKP Signal circuit in the CKP harness connector.
      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.

    3. Turn the ignition on.
    4. Wiggle the related wire harness and lightly tap on the Crankshaft Position Sensor.
    5. Observe the lab scope screen.
    6. Allow the engine to idle.
    7. Observe the lab scope screen.

      Did the CKP Sensor generate any erratic pulses?

      Yes 

      • Verify that there is good pin to terminal contact in the CKP Sensor and the Powertrain Control Module connectors. If OK, replace the Crankshaft Position Sensor. Refer to SENSOR, CRANKSHAFT 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 

      • Test complete, the conditions that set this DTC are not present at this time. Using the wiring diagram as a guide, check all related splices and connections for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
scientia non olet · About LEMON Manuals