LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 159 (3.6L - DTCS P000A To P0157) >> DTC Troubleshooting >> P0020-Bank 2 Camshaft 1 Position Actuator Circuit Open >> 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. DTC IS ACTIVE 
    NOTE:

    Diagnose and repair any system voltage DTCs before continuing with this test.

    NOTE:

    Diagnose and repair any CMP sensor or CKP sensor DTCs before continuing with this test.

    NOTE:

    Diagnose and repair any oil pressure or oil pressure sensor DTCs before continuing with this test.

    1. Start the engine and allow it to reach normal 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.

    2. With the scan tool, clear DTCs in the Powertrain Control Module (PCM).
    3. Test drive the vehicle under the conditions in which the DTC is monitored, as outlined above.
    4. With the scan tool, select View DTCs.

      Is the DTC Active or Pending at this time?

      Yes 

      • Go To  2

      No 

  2. (K78) CMP 2/1 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 1: Checking CMP 2/1 Control Circuit For Open Or High Resistance
    GC0149893Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Camshaft 2/1 Position Solenoid/Oil Control Valve harness connector.
    3. Disconnect the PCM C2 harness connector.
    4. Inspect the wiring and connectors between the Camshaft 2/1 Position Solenoid/Oil Control Valve and the Powertrain Control Module (PCM).
    5. Look for any chafed, pierced, pinched or partially broken wires.
    6. Look for broken, bent, pushed out or corroded terminals.
    7. Measure the resistance of the (K78) CMP 2/1 Control circuit between the Camshaft 2/1 Position Solenoid harness connector and the PCM C2 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  3

      No 

      • Repair the (K78) CMP 2/1 Control circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  3. (K78) CMP 2/1 CONTROL CIRCUIT ACTUATION 
    Fig 2: Checking CMP 2/1 Control Circuit Actuation
    GC0151911Courtesy of CHRYSLER GROUP, LLC
    1. Connect the PCM C2 harness connector.
    2. With the scan tool, actuate the Camshaft 2/1 Position Solenoid/Oil Control Valve to the ON (maximum) position.
    3. Using a 12-volt test light connected to 12 Volts, check the (K78) CMP 2/1 Control circuit in the Camshaft 2/1 Position Solenoid harness connector.
      NOTE:

      The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

      Is the test light illuminated and bright?

      Yes 

      • Go To  4

      No 

  4. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the VVT Intake Solenoid 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.
    4. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No