LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2024 >> Wagoneer Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (3.0L - DTCS P0333-00 To P0354-00) >> DTC Troubleshooting >> P0343-00-Camshaft Position Sensor 1/1 Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read Powertrain Control Module (PCM) DTCs and Freeze Frame Data and record on the repair order.
      NOTE:

      If the vehicle starts and runs, wiggle test the wiring in an attempt to duplicate the problem or set the fault.

    2. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    3. With the scan tool, read PCM DTCs.

      Is the DTC active or pending?

      Yes 

      • Go To  2

      No 

  2. ISOLATE AND CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. The ignition must be off when checking the continuity of a circuit.
    2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
    3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
    4. Connect the leads of the DVOM to the circuit being tested.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  3

      No 

  3. CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO THE (K44) CMP SIGNAL CIRCUIT 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Check for continuity between the (F856) 5-Volt Supply circuit and the (K44) CMP Signal circuit at the Camshaft Position Sensor harness connector.

      Is there continuity between the (F856) 5-Volt Supply circuit and the (K44) CMP Signal circuit?

      Yes 

      • Repair the (F856) 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  2
  4. ISOLATE AND CHECK THE (K914) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. The ignition must be off when checking the continuity of a circuit.
    2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
    3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
    4. Connect the leads of the DVOM to the circuit being tested.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  5

      No 

  5. CHECK THE (K44) CMP SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition on.
    2. Measure the voltage on the (K44) CMP Signal circuit in the Camshaft Position 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  6
  6. CAMSHAFT POSITION SENSOR 
    1. Replace the Camshaft Position Sensor in accordance with the Service Information. Refer to CAMSHAFT POSITION (CMP) SENSOR - EXHAUST and/or CAMSHAFT POSITION (CMP) SENSOR - INTAKE .
      NOTE:

      "The Phonic Wheel Reset"  procedure must be performed every time there has been a repair or replacement made to a CMP Sensor, CKP sensor, flywheel, valvetrain, timing chain or gears. Failure to do so can cause a misfire fault to set.

    2. Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
    3. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    4. With the scan tool, read PCM DTCs.

      Is the DTC active or pending?

      Yes 

      • Go To  7

      No 

      • Test complete.
  7. CHECK RELATED PCM AND COMPONENT CONNECTIONS 
    1. Perform any Service Bulletins that apply.
    2. Disconnect all PCM C2 harness connectors.
    3. Disconnect all related in-line harness connections (if equipped).
    4. Disconnect the related component harness connectors.
    5. 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.

    6. Reconnect all PCM C2 harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    9. With the scan tool, erase DTCs.
    10. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
    11. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      No 

scientia non olet · About LEMON Manuals