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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 433 (6.7L Diesel - DTCS P0008 To P040D - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P0206-Fuel Injector 6 Circuit/Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With the scan tool check for active DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK EACH FUEL INJECTOR CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the PCM C1 harness connector.
    3. Measure the resistance between the:
      • (K614) Fuel Injector 4 High Side Driver circuit and the (K14) Fuel Injector 4 Low Side Driver circuit at the PCM C1 harness connector.
      • (K38) Fuel Injector 5 High Side Driver circuit and the (K638) Fuel Injector 5 Low Side Driver circuit at the PCM C1 harness connector.
      • (K658) Fuel Injector 6 High Side Driver circuit and the (K58) Fuel Injector 6 Low Side Driver circuit at the PCM C1 harness connector.
      NOTE:

      Be sure to zero out the Ohm meter prior to checking the Fuel Injector circuit. Resistance reading should be between 0-1 Ohm.

      Is the resistance between 0-1 Ohm for each Fuel Injector circuit?

      Yes 

      • Go To  3

      No 

      • Go To  8
  3. CHECK EACH FUEL INJECTOR CIRCUIT FOR A SHORT TO GROUND 
    1. Measure the resistance between ground and the:
      • (K614) Fuel Injector 4 High Side Driver circuit at the PCM C1 harness connector.
      • (K38) Fuel Injector 5 High Side Driver circuit at the PCM C1 harness connector.
      • (K658) Fuel Injector 6 High Side Driver circuit at the PCM C1 harness connector.
      NOTE:

      There should be no continuity between the circuit and ground.

      Is the resistance below 10k Ohms on any injector circuits?

      Yes 

      • Go To  12

      No 

      • Go To  4
  4. CHECKING FOR INJECTOR CONTROL CIRCUITS SHORTED TOGETHER 
    1. Disconnect the valve cover pass through wires at each Bank 2 Fuel Injector terminal.
      NOTE:

      Do not disconnect the valve cover pass through harness from the engine harness.

    2. At the PCM C1 harness connector, measure the resistance between ALL (Bank 2) Low AND High Side Control circuits: K614(High 4), K14(Low 4), K38(High 5), K638(Low 5), K658(High 6), and K58(Low 6).

      Is the resistance below 10k ohms between any Injector Control circuits?

      Yes 

      • Repair the Injector Control circuits that are shorted together.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. ISOLATE CYLINDER 4 FUEL INJECTOR 
    1. Reconnect the PCM C1 harness connector to the PCM.
    2. Leave the valve cover pass through wires disconnected at the Cylinder 4 Fuel Injector terminals.
    3. Reconnect the valve cover pass through wires at the Cylinder 5 and 6 Fuel Injector terminals.
      NOTE:

      Torque the Injector terminal nuts to 8.8 in-lbs.

    4. Place electrical tape on the ends of the disconnected valve cover pass through wires to prevent the Injector terminal nuts from coming in contact with each other or the engine block.
    5. Place the valve cover on the engine.
      NOTE:

      It is not necessary to bolt the valve cover in place.

    6. Ignition on, engine not running.
    7. With the scan tool, erase all DTCs.
    8. Start the engine and let idle for 1 minute.
    9. Ignition on, engine not running.
    10. With the scan tool, read DTCs.

      Are multiple bank 2 injector circuit DTCs (P0204, P0205, P0206) active?

      Yes 

      • Go To  6

      No 

      • Replace the Cylinder 4 Fuel Injector in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  6. ISOLATE CYLINDER 5 FUEL INJECTOR 
    1. Reconnect the valve cover pass through wires at the Cylinder 4 Fuel Injector terminals.
      NOTE:

      Torque the Injector terminal nuts to 8.8 in-lbs.

    2. Disconnect the valve cover pass through wires at the Cylinder 5 Fuel Injector terminals.
    3. Place electrical tape on the ends of the disconnected valve cover pass through wires to prevent the injector terminal nuts from coming in contact with each other or the engine block.
    4. Place the valve cover on the engine.
      NOTE:

      It is not necessary to bolt the valve cover in place.

    5. Ignition on, engine not running.
    6. With the scan tool, erase all DTCs.
    7. Start the engine and let idle for 1 minute.
    8. Ignition on, engine not running.
    9. With the scan tool, read DTCs.

      Are multiple bank 2 injector circuit DTCs (P0204, P0205, P0206) active?

      Yes 

      • Go To  7

      No 

      • Replace the Cylinder 5 Fuel Injector in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  7. ISOLATE CYLINDER 6 FUEL INJECTOR 
    1. Reconnect the valve cover pass through wires at the cylinder 5 fuel injector terminals.
      NOTE:

      Torque the injector terminal nuts to 8.8 in-lbs.

    2. Disconnect the valve cover pass through wires at the cylinder 6 fuel injector terminals.
    3. Place electrical tape on the ends of the disconnected valve cover pass through wires to prevent the injector terminal nuts from coming in contact with each other or the engine block.
    4. Place the valve cover on the engine.
      NOTE:

      It is not necessary to bolt the valve cover in place.

    5. Ignition on, engine not running.
    6. With the scan tool, erase all DTCs.
    7. Start the engine and let idle for 1 minute.
    8. Ignition on, engine not running.
    9. With the scan tool, read DTCs.

      Are multiple bank 2 injector circuit DTCs (P0204, P0205, P0206) active?

      Yes 

      • Replace the Powertrain Control Module in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Replace the Cylinder 6 Fuel Injector in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  8. CHECK THE VALVE COVER PASS THROUGH HARNESS CIRCUIT 
    NOTE:

    Perform the following tests on the Fuel Injector circuit which was faulty.

    1. Disconnect the Valve Cover Pass Through harness connector.
    2. Measure the resistance between the Low Side Driver circuit and the High Side Driver circuit at the Valve Cover Pass Through connector terminals.
      NOTE:

      Be sure to zero the Ohm meter prior to checking the Fuel Injector circuit.

      Is the resistance between 0-1 Ohm?

      Yes 

      • Go To  9

      No 

      • Go To  11
  9. CHECK THE HIGH SIDE CIRCUITS IN ENGINE HARNESS 
    1. Measure the resistance of the High Side Driver circuit between the Valve Cover Pass Through harness connector and the PCM C1 harness connector.
      NOTE:

      Be sure to zero the Ohm meter prior to checking the Fuel Injector circuit.

      Is the resistance between 0-1 Ohm?

      Yes 

      • Go To  10

      No 

      • Repair the High Side Driver circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  10. CHECK THE LOW SIDE CIRCUITS IN ENGINE HARNESS 
    1. Measure the resistance of the Low Side Driver circuit between the Valve Cover Pass Through harness connector and the PCM C1 harness connector.
      NOTE:

      Be sure to zero the Ohm meter prior to checking the Fuel Injector circuit.

      Is the resistance between 0-1 Ohm?

      Yes 

      • Test complete. Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .

      No 

      • Repair the Low Side Driver circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  11. CHECK FUEL INJECTORS 
    1. Disconnect all bank 2 Fuel Injector wires at the Fuel Injectors.
    2. Measure the resistance across the terminals at the Fuel Injector.
      NOTE:

      Be sure to zero the Ohm meter prior to checking the Fuel Injector circuit.

      Is the resistance between 0-1 Ohm?

      Yes 

      • Replace the Valve Cover Pass Through harness in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Replace the Fuel Injector in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  12. CHECK FOR THE DRIVER CIRCUITS SHORTED TOGETHER 
    1. Disconnect all bank 2 Fuel Injector wires at the Fuel Injectors.
    2. Measure the resistance between all bank 2 Driver circuits at the PCM C1 harness connector.

      Is the resistance below 10k Ohms between any circuits?

      Yes 

      • Go To  13

      No 

      • Go To  14
  13. CHECK THE VALVE COVER PASS THROUGH HARNESS CIRCUITS 
    Fig 1: Valve Cover Pass Through Harness Connector (C117) Pin ID
    GC0110875Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Valve Cover Pass Through harness connector.
    2. Measure the resistance between all bank 2 Driver circuits of the Valve Cover Pass Through connector terminals.

      Is the resistance below 10k Ohms between any circuits?

      Yes 

      • Replace the Valve Cover Pass Through harness in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Repair the short between the bank 2 Driver circuits in the engine harness.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  14. CHECK THE HIGH SIDE DRIVER CIRCUIT FOR A SHORT TO GROUND 
    NOTE:

    Perform the following tests on the Fuel Injector circuit which was faulty.

    1. Disconnect the Valve Cover Pass Through harness connector.
    2. Measure the resistance between ground and the High Side Driver circuit at the PCM C1 connector.

      Is the resistance below 10k Ohms?

      Yes 

      • Repair the High Side Driver circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Go To  15
  15. CHECK THE LOW SIDE DRIVER CIRCUIT FOR A SHORT TO GROUND 
    1. Measure the resistance between ground and the Low Side Driver circuit at the PCM C1 connector.

      Is the resistance below 10k Ohms?

      Yes 

      • Repair the Low Side Driver circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Go To  16
  16. CHECK THE FUEL INJECTORS 
    1. Measure the resistance between ground and one of the Fuel Injector terminals.

      Is the resistance below 10k Ohms?

      Yes 

      • Replace the Fuel Injector in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .

      No 

      • Replace the Valve Cover Pass Through harness in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
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