CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK HYBRID VEHICLE CONTROL ECU

    A01GYL9E07

    1. Disconnect the A76, A77, A78 and E58 ECU connectors.

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

      Terminal No (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A76-1 (BATT) - Body ground B-W - Body ground Power source circuit Always 11 to 14 V
      A77-1 (STP) - Body ground L - Body ground Stop light switch signal Brake pedal is depressed 11 to 14 V
      A77-1 (STP) - Body ground L - Body ground Stop light switch signal Depress brake pedal Below 1 V
      A78-6 (ST1-) - Body ground V - Body ground Stop light switch signal

      Power switch ON (IG),

      brake pedal is released

      		 11 to 14 V
      A78-6 (ST1-) - Body ground V - Body ground Stop light switch signal

      Power switch ON (IG),

      brake pedal is depressed

      		 Below 1 V
      A76-35 (CCS) - Body ground V - Body ground Cruise control switch signal Cruise control switch ON Below 2.5 Ω
      A76-35 (CCS) - Body ground V - Body ground Cruise control switch signal Cruise control switch OFF 1MΩ or higher
      A76-35 (CCS) - Body ground V - Body ground Cruise control switch signal +/RES switch hold ON 235 to 245 Ω
      A76-35 (CCS) - Body ground V - Body ground Cruise control switch signal -/SET switch hold ON 617 to 643 Ω
      A76-35 (CCS) - Body ground V - Body ground Cruise control switch signal CANCEL switch hold ON 1509 to 1571 Ω
      A76-6 (EC) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A77-7 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A77-6 (E12) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E58-7 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E58-6 (GND2) - 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.