СИСТЕМА ECD, Diagnostic DTC:P205C, P205D

DTC Code DTC Name
P205C Reductant Tank Temperature Sensor Circuit Low
P205D Reductant Tank Temperature Sensor Circuit High

DESCRIPTION

Refer to DTC P202B Click here.

P205C
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON and wait for 10 seconds or more.

An open or short circuit occurs in the temperature sensor circuit for 10 seconds or more.

(1 trip detection logic)

  • Open or short in temperature sensor circuit

  • Temperature sensor (Urea Pump)

  • Urea pump control ECU
P205D
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON and wait for 10 seconds or more.

An open or short circuit occurs in the temperature sensor circuit for 10 seconds or more.

(1 trip detection logic)

  • Open or short in temperature sensor circuit

  • Temperature sensor (Urea Pump)

  • Urea pump control ECU
Related Data List
DTC No. Data List

P205C

P205D

 Reductant Temperature

MONITOR DESCRIPTION

The urea pump control ECU calculates the temperature of the urea solution based on the output voltage of the temperature sensor. When the temperature sensor output voltage is outside the normal range, there may be a malfunction, short or open circuit in the temperature sensor. In this case, the urea pump control ECU determines that there is a malfunction in the temperature sensor, and then illuminates the MIL and stores a DTC through the ECM.

WIRING DIAGRAM

B007TCUE03

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Enter the following menus: Powertrain / Engine and ECT / Reductant Temperature.

    4. Read the values.

      Standard
      Reductant temperature is the same as the ambient temperature of urea tank assembly.
      Result
      Result Proceed to
      -40°C (-40°F) A
      80°C (176°F) B

      Tech Tips


      • When the GTS indicates -40°C (-40°F), there is a open circuit.

      • When the GTS indicates 80°C (176°F), there is a short circuit.


    B

    READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS) Click here

    A

  2. READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)


    1. Disconnect the urea pump connector.

      B007SNUE02
      Text in Illustration
      *1 Temperature Sensor (Urea Pump) *2 Urea Pump Control ECU
      *a

      Front view of wire harness connector

      (to Urea Pump)

      		 - -

    2. Connect terminals 8 (TUW) and 7 (ETUW) of the urea pump connector on the wire harness side.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON and turn the GTS on.

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Reductant Temperature.

    6. Read the values.

      OK
      80°C (176°F)

    NG

    CHECK HARNESS AND CONNECTOR (UREA PUMP - UREA PUMP CONTROL ECU) Click here

    OK

  3. REPLACE UREA PUMP


    1. Replace the urea pump Click here.


    NEXT

  4. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off and wait for 30 seconds or more.

    5. Read the DTCs.


    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the GTS to the DLC3.

    2. Turn the GTS on.

    3. Turn the ignition switch to ON and wait for 10 seconds or more.

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

    5. Confirm that the DTCs are not output again.


    NEXT

    END

  6. CHECK HARNESS AND CONNECTOR (UREA PUMP - UREA PUMP CONTROL ECU)

    B007UXAE15
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Urea Pump)

    		 *b

    Front view of wire harness connector

    (to Urea Pump Control ECU)

    1. Disconnect the urea pump connector.

    2. Disconnect the urea pump control ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      Tester Connection Condition Specified Condition
      A47-8 (TUW) - A45-54 (THU) Always Below 1 Ω
      A47-7 (ETUW) - A45-53 (ETHU) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  7. REPLACE UREA PUMP CONTROL ECU


    1. Replace the urea pump control ECU Click here.


    NEXT

    CLEAR DTC Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

    CLEAR DTC Click here

  9. READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS)


    1. B007PKME01
      Text in Illustration
      *1 Temperature Sensor (Urea Pump)
      *2 Urea Pump Control ECU

      Disconnect the urea pump assembly connector.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Reductant Temperature.

    6. Read the values.

      OK
      -40°C (-40°F)

    NG

    CHECK WIRE HARNESS AND CONNECTOR (UREA PUMP - UREA PUMP CONTROL ECU) Click here

    OK

    REPLACE UREA PUMP

  10. CHECK WIRE HARNESS AND CONNECTOR (UREA PUMP - UREA PUMP CONTROL ECU)

    B007UXAE16
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Urea Pump)

    		 *b

    Front view of wire harness connector

    (to Urea Pump Control ECU)

    1. Disconnect the urea pump connector.

    2. Disconnect the urea pump control ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      Tester Connection Condition Specified Condition
      A47-8 (TUW) and A45-54 (THU) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

    REPLACE UREA PUMP CONTROL ECU