HYBRID CONTROL SYSTEM Pattern Select Switch Eco Mode Circuit

DESCRIPTION

When selecting ECO mode, the ECO mode switch (combination switch assembly) operation signal is sent to the air conditioning amplifier assembly. Following this, ECO mode control is activated for the heater and air conditioning system.

WIRING DIAGRAM

A005CX6E57

PROCEDURE


  1. READ VALUE USING GTS (CAN BUS CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: System Select / CAN Bus Check.

      Result
      Result Proceed to
      All of the ECUs and sensors that are currently connected to the CAN communication system are displayed. A
      None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed. B

    4. Turn the power switch off.


    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK DTC OUTPUT (HEALTH CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: System Select / Health Check.

    4. Check DTCs.

      Result
      Result Proceed to
      No DTCs are output. A
      DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART

    A

  3. PERFORM ACTIVE TEST USING GTS (INDICAT. ECO MODE)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / Combination Meter / Active Test / Indicat. ECO Mode.

    4. Perform the "Indicat. ECO MODE" Active Test.

      OK
      The ECO MODE indicator light comes on or blinks.
      Result
      Result Proceed to
      OK A
      NG (w/o Multi-information Display) B
      NG (w/ Multi-information Display) C

    5. Turn the power switch off.


    B

    REPLACE METER CIRCUIT PLATE Click here

    C

    REPLACE COMBINATION METER SUB-ASSEMBLY Click here

    A

  4. READ VALUE USING GTS (ECO MODE)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / ECO Mode.

    4. Read the value displayed on the GTS.

      Tester Display Measurement Item/Range Normal Condition
      ECO Mode

      ECO mode transition availability/

      ON or OFF

      		 In ECO mode: ON
      Result
      Result Proceed to
      The GTS display changes according to the ECO mode switch (combination switch assembly) operation. A
      The GTS display does not changes according to the ECO mode switch (combination switch assembly) operation. B

    5. Turn the power switch off.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  5. READ VALUE USING GTS (ECO SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / Air Conditioning / Data List / ECO Switch.

    4. Read the value displayed on the GTS.

      Tester Display Measurement Item/Range Normal Condition
      ECO Switch

      ECO switch condition/

      ON or OFF

      ECO switch being pushed and held: ON

      ECO switch not pushed: OFF
      Result
      Result Proceed to
      The GTS display changes according to the ECO mode switch (combination switch assembly) operation. A
      The GTS display does not changes according to the ECO mode switch (combination switch assembly) operation. B

    5. Turn the power switch off.


    A

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    B

  6. CHECK ECO MODE SWITCH (COMBINATION SWITCH ASSEMBLY)


    1. Remove the ECO mode switch (combination switch assembly).

    2. A005D9SE19
      Text in Illustration
      *a

      Component without harness connected

      (ECO Mode Switch (Combination Switch Assembly))

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      5 (ECU) - 3 (E) ECO mode switch (combination switch assembly) being pushed and held Below 1 Ω
      ECO mode switch (combination switch assembly) not pushed 10 kΩ or higher

    3. Install the ECO mode switch (combination switch assembly).


    NG

    REPLACE ECO MODE SWITCH (COMBINATION SWITCH ASSEMBLY) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (ECO MODE SWITCH (COMBINATION SWITCH ASSEMBLY) - BODY GROUND)


    1. Disconnect the L143 ECO mode switch (combination switch assembly) connector.

    2. A005BTKE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECO Mode Switch (Combination Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L143-3 (E) - Body ground Always Below 1 Ω

    3. Reconnect the L143 ECO mode switch (combination switch assembly) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY - ECO MODE SWITCH (COMBINATION SWITCH)


    1. Disconnect the L17 air conditioning amplifier assembly connector.

    2. Disconnect the L143 ECO mode switch (combination switch assembly) connector.

    3. A005C11E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Amplifier Assembly)
      *b

      Front view of wire harness connector

      (to ECO Mode Switch (Combination Switch Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L17-15 (ECOS) - L143-5 (ECU) Always Below 1 Ω
      L17-15 (ECOS) or L143-5 (ECU) - Body ground Always 10 kΩ or higher

    4. Reconnect the L143 ECO mode switch (combination switch assembly) connector.

    5. Reconnect the L17 air conditioning amplifier assembly connector.


    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR