CRUISE CONTROL SYSTEM TERMINALS OF ECM


  1. CHECK ECM

    A01FIB7E01

    1. Disconnect the F1, F4, A19 and A21 ECM connectors.

    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
      A19-7 (BATT) - F4-1 (E1) L - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
      F1-1 (+BM) - F4-1 (E1) P - BR Power source of throttle motor Always 11 to 14 V
      A19-12 (ST1-) - F4-1 (E1) GR - BR Normally closed switch Engine switch on (IG), Brake pedal depressed Below 1.5 V
      A19-12 (ST1-) - F4-1 (E1) GR - BR Normally closed switch Engine switch on (IG), Brake pedal released 7.5 to 14 V
      A19-13 (STP) - F4-1 (E1) R - BR Normally open switch Brake pedal depressed 7.5 to 14 V
      A19-13 (STP) - F4-1 (E1) R - BR Normally open switch Brake pedal released Below 1.5 V
      A21-7 (SFTD) - F4-1 (E1) W - BR Down shift switch signal Engine switch on (IG) and shift lever M position 11 to 14 V
      A21-7 (SFTD) - F4-1 (E1) W - BR Down shift switch signal Engine switch on (IG) and shift lever "-" position (Down shift) Below 1 V
      A21-7 (SFTD) - F4-1 (E1) W - BR Down shift switch signal Engine switch on (IG) and "-" shift paddle operated and held (down-shift) Below 1 V
      A21-8 (SFTU) - F4-1 (E1) Y - BR Up shift switch signal Engine switch on (IG) and shift lever M position 11 to 14 V
      A21-8 (SFTU) - F4-1 (E1) Y - BR Up shift switch signal Engine switch on (IG) and shift lever "+" position (Up shift) Below 1 V
      A21-8 (SFTU) - F4-1 (E1) Y - BR Up shift switch signal Engine switch on (IG) and "+" shift paddle operated and held (up-shift) Below 1 V
      A21-15 (CCS) - Body ground B - Body ground Cruise control main switch signal Cruise control main switch on Below 1 Ω
      A21-15 (CCS) - Body ground B - Body ground Cruise control main switch signal Cruise control main switch off 1 MΩ or higher
      A21-15 (CCS) - Body ground B - Body ground Cruise control main switch signal +/RES switch is held on 235 to 245 Ω
      A21-15 (CCS) - Body ground B - Body ground Cruise control main switch signal -/SET switch is held on 617 to 643 Ω
      A21-15 (CCS) - Body ground B - Body ground Cruise control main switch signal CANCEL switch is held on 1509 to 1571 Ω
      A21-16 (S) - F4-1 (E1) R - BR M shift position switch signal Engine switch on (IG) and shift lever M position 11 to 14 V
      A21-16 (S) - F4-1 (E1) R - BR M shift position switch signal Engine switch on (IG) and shift lever except M position Below 1 V

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