SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P16B479

DTC Code DTC Name
P16B479 Multi Flow Control Valve Stopper Mechanical Linkage Failure

DESCRIPTION

The water control valve shaft is fixed to the center of the ball valve, and its role is to transmit the rotational drive torque transmitted from the internal DC motor via the gear to the ball valve.

B006BLJE01
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P16B479 Multi Flow Control Valve Stopper Mechanical Linkage Failure

Both of the following conditions are met for 0.5 seconds (2 trip detection logic):


  • Ball valve of water control valve operates beyond the upper limit stopper during forced operation immediately after engine switch off

  • Ball valve of water control valve operates beyond the lower limit stopper during forced operation immediately after engine switch off

 Water control valve Comes on DTC stored SAE: P16B4

MONITOR DESCRIPTION

When the operating angle of the ball valve of the water control valve goes beyond the stopper, breakage or disconnection of the water control valve shaft or misalignment of the ball valve position sensor is judged, and the ECM illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main) Water control valve
Frequency of Operation Once per driving cycle

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the engine switch off and wait for at least 30 seconds.

  6. Start the engine.

  7. Idle the engine for 120 seconds or more.

  8. Turn the engine switch off and wait for at least 30 seconds.

  9. Turn the engine switch on (IG).

  10. Turn the GTS on.

  11. Enter the following menus: Powertrain / Engine / Trouble Codes.

  12. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  14. Input the DTC: P16B479.

  15. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

CAUTION / NOTICE / HINT

Tech Tips

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P16B479)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P16B479 is output A
      DTC P16B479 and other DTCs are output B

      Tech Tips

      If any DTCs other than P16B479 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CUSTOMER PROBLEM ANALYSIS AND CHECK VEHICLE (CHECK FOR OVERHEATING)


    1. Perform a customer problem analysis to check whether overheating occurred.

      Tech Tips

      Check whether "High coolant temperature warning light" was displayed on the combination meter.

      Result
      Result Proceed to
      Overheating occurred A
      Overheating did not occur B

    B

    GO TO STEP 7 Click here

    A

  3. CHECK VEHICLE (CHECK FOR OVERHEATING)


    1. Check the engine coolant quantity.

      Click here

      Result
      Result Proceed to
      At or below reserve tank LOW level or trace of coolant boiling over A
      At or above reservoir tank LOW level and no trace of coolant boiling over B

    B

    GO TO STEP 7 Click here

    A

  4. CHECK FOR COOLANT LEAK


    1. Check the engine cooling system for coolant leaks.

      Click here

      OK
      No leaks.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 6 Click here

    NG

  5. REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA


    1. Repair any engine coolant leaks.

      Tech Tips

      Check for damage to parts due to overheating and replace any abnormal parts.

      Result
      Proceed to
      NEXT

    NEXT

  6. ADD COOLANT


    1. Fill the reservoir tank up to the FULL line with engine coolant.

      Click here

      Tech Tips

      Add engine coolant and perform air bleeding after repair.

      Result
      Proceed to
      NEXT

    NEXT

  7. REPLACE WATER CONTROL VALVE


    1. Replace the water control valve.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    REPLACE COOLANT Click here When replacing any cooling system parts, if excessive deposits of rust or scale exist or the concentration of the engine coolant is abnormal, replace the engine coolant.