ECD SYSTEM(for Swirl Control Valve), Diagnostic DTC:P1201

DTC Code DTC Name
P1201 Physical Range Check High for Fuel Temperature

DESCRIPTION

Refer to DTC P0182 (Click here).

DTC No.

DTC Detection Condition

Trouble Area

P1201

Fuel temperature sensor output is more than 114.9°C (239°F) for 4 seconds.

(3 trip detection logic)

  • Open or short in fuel temperature sensor circuit

  • Fuel temperature sensor

  • ECM

WIRING DIAGRAM

A389833E07

CAUTION / NOTICE / HINT

Note:

When replacing the ECM, the ECM needs Registration and Initialization (Click here).

Tip:

  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • 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. CHECK HARNESS AND CONNECTOR (FUEL TEMPERATURE SENSOR - ECM)

    1. Disconnect the fuel temperature sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      C95-1 (THF) - C112-93 (THF)

      Always

      Below 1 Ω

      C95-2 (E2) - C112-124 (ETHF)

      Always

      Below 1 Ω

      C95-1 (THF) or C112-93 (THF) - Body ground

      Always

      10 kΩ or higher

      C95-2 (E2) or C112-124 (ETHF) - Body ground

      Always

      10 kΩ or higher

    REPAIR OR REPLACE HARNESS OR CONNECTORClick here

  2. INSPECT FUEL TEMPERATURE SENSOR

    1. Inspect the fuel temperature sensor (Click here).

    REPLACE FUEL TEMPERATURE SENSORClick here

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P1201)

    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 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

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

    8. Read the DTCs.

      Table 1. Result

      Result

      Proceed to

      No DTC output

      A

      DTC P1201

      B

    END

    REPLACE ECMClick here

  4. REPAIR OR REPLACE HARNESS OR CONNECTOR

    1. Repair or replace the harness or connector.

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  5. REPLACE FUEL TEMPERATURE SENSOR

    1. Replace the fuel temperature sensor (Click here).

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  6. REPLACE ECM

    1. Replace the ECM (Click here).

  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

    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 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

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

    8. Confirm that the DTC is not output again.

    END