SFI SYSTEM(w/o Canister Pump Module) Active Control Engine Mount System

DESCRIPTION


The active control engine mount system decreases engine vibration at a low engine speed using the vacuum switching valve (for active control engine mount system). The vacuum switching valve (for active control engine mount system) is controlled by a pulse signal transmitted to the vacuum switching valve (for active control engine mount system) from the ECM. The frequency of this pulse signal is matched to the engine speed to decrease engine vibration.

WIRING DIAGRAM

B0083FYE06

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE ACM INHIBIT)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Active Test / Activate the ACM Inhibit.


      Powertrain > Engine > Active Test
      Tester Display
      Activate the ACM Inhibit
    5. According to the display on the GTS, perform the Active Test to operate the vacuum switching valve (for active control engine mount system) and for check the operating sound of the vacuum switching valve (for active control engine mount system).

      OK
      Operating sounds can be heard.
      Result
      Proceed to
      OK
      NG

    NG
    OK
  2. CHECK VACUUM HOSES

    B00843CC01
    *1 Engine
    *2 Vacuum Pump Assembly
    *3 Front Engine Mounting Insulator
    *4 Rear Engine Mounting Insulator
    *5 ECM
    *6 Vacuum Switching Valve (for Active Control Engine Mount System)

    1. Check the air and vacuum hoses for looseness, disconnection and blockage.

      OK
      No looseness, disconnection or blockage.
      Result
      Proceed to
      OK
      NG

    NG
    OK
  3. CHECK VACUUM

    B0087JS

    1. Disconnect the vacuum hose from the vacuum pump assembly.

    2. Start the engine.

    3. Check that the disconnected port located on the vacuum pump assembly applies suction to your finger.

      OK
      Vacuum exists.
      Result
      Proceed to
      OK
      NG

    NG
    OK
  4. INSPECT FRONT ENGINE MOUNTING INSULATOR


    1. Inspect the front engine mounting insulator.

      Click here

      Result
      Proceed to
      OK
      NG

    NG
    OK
  5. INSPECT REAR ENGINE MOUNTING INSULATOR


    1. Inspect the rear engine mounting insulator.

      Click here

      Result
      Proceed to
      OK
      NG

    OK
    NG
  6. CHECK TERMINAL VOLTAGE (POWER SOURCE OF VACUUM SWITCHING VALVE (FOR ACTIVE CONTROL ENGINE MOUNT SYSTEM))

    B0085MFC16
    *a

    Front view of wire harness connector

    (to Vacuum Switching Valve (for Active Control Engine Mount System))


    1. Disconnect the vacuum switching valve (for active control engine mount system) connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C15-1 (+B) - Body ground Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG
    OK
  7. INSPECT VACUUM SWITCHING VALVE (FOR ACTIVE CONTROL ENGINE MOUNT SYSTEM)


    1. Inspect the vacuum switching valve (for active control engine mount system).

      Click here

      Result
      Proceed to
      OK
      NG

    NG
    OK
  8. CHECK HARNESS AND CONNECTOR (VACUUM SWITCHING VALVE (FOR ACTIVE CONTROL ENGINE MOUNT SYSTEM) - ECM)


    1. Disconnect the vacuum switching valve (for active control engine mount system) 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
      C15-2 (ACM) - C57-44 (ACM) Always Below 1 Ω
      C15-2 (ACM) or C57-44 (ACM) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK
    NG