CRUISE CONTROL SYSTEM(for 1WW) TERMINALS OF ECU

  1. CHECK ECM

    U124101E02

    1. Disconnect the A76 ECM connector.

      Note:

      After turning the ignition switch off, make sure to wait at least 6 minutes before disconnecting the ECM connector or replacing the ECM.

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      A76-15 (BATT) - Body ground

      B - Body ground

      Power source circuit

      Always

      11 to 14 V

      A76-37 (IGSW) - Body ground

      B - Body ground

      IG power source circuit

      Ignition switch ON

      11 to 14 V

      Ignition switch off

      Below 1 V

      A76-10 (ST1-) - Body ground

      R-W - Body ground

      Stop light switch signal circuit

      Ignition switch ON, brake pedal released

      11 to 14 V

      Ignition switch ON, brake pedal depressed

      Below 1 V

      A76-48 (STP) - Body ground

      V - Body ground

      Stop light switch signal circuit

      Brake pedal depressed

      11 to 14 V

      Brake pedal released

      Below 1 V

      A76-7 (D) - Body ground

      W - Body ground

      Clutch switch signal circuit

      Ignition switch ON, clutch pedal depressed

      11 to 14 V

      Ignition switch ON, clutch pedal released

      Below 1 V

      A76-41 (CCS) - A76-42 (ECCS)

      L - BR

      Cruise control switch circuit

      Cruise control switch on

      Below 2.5 Ω

      Cruise control switch off

      10 MΩ or higher

      +RES switch held on

      235 to 245 Ω

      -SET switch held on

      617 to 643 Ω

      CANCEL switch held on

      1509 to 1571 Ω

      A76-4 (E1) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.