CRUISE CONTROL SYSTEM TERMINALS OF ECM


  1. CHECK ECM (for 1AR-FE)

    A0027PZE60

    Tech Tips

    The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A43-11 (STP) - C1-16 (E1) G - BR Stop light switch assembly signal Brake pedal depressed 11 to 14 V
    A43-11 (STP) - C1-16 (E1) G - BR Stop light switch assembly signal Brake pedal released Below 1 V
    A43-24 (ST1-) - C1-16 (E1) L - BR Stop light switch assembly signal Ignition switch ON and brake pedal depressed Below 1 V
    A43-24 (ST1-) - C1-16 (E1) L - BR Stop light switch assembly signal Ignition switch ON and brake pedal released 11 to 14 V
    A43-27 (S) - C1-16 (E1) LG - BR S shift position signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-27 (S) - C1-16 (E1) LG - BR S shift position signal Ignition switch ON and shift lever not in S range Below 1 V
    A43-40 (CCS) - C1-16 (E1) R - BR Cruise control main switch circuit Cruise control main switch (ON-OFF button) released 1 MΩ or higher
    A43-40 (CCS) - C1-16 (E1) R - BR Cruise control main switch circuit Cruise control main switch (ON-OFF button) pushed Below 1.5 Ω
    A43-40 (CCS) - C1-16 (E1) R - BR Cruise control main switch circuit +RES switch ON 235 to 245 Ω
    A43-40 (CCS) - C1-16 (E1) R - BR Cruise control main switch circuit -SET switch ON 617 to 643 Ω
    A43-40 (CCS) - C1-16 (E1) R - BR Cruise control main switch circuit CANCEL switch ON 1509 to 1571 Ω
    A43-42 (SFTU) - C1-16 (E1) V - BR Up-shift position switch signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-42 (SFTU) - C1-16 (E1) V - BR Up-shift position switch signal Ignition switch ON and shift lever in "+" Below 1 V
    A43-43 (SFTD) - C1-16 (E1) SB - BR Down-shift position switch signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-43 (SFTD) - C1-16 (E1) SB - BR Down-shift position switch signal Ignition switch ON and shift lever in "-" Below 1 V
    C1-67 (D) - C1-16 (E1) G - BR D shift position signal Ignition switch ON and shift lever in D 11 to 14 V
    C1-67 (D) - C1-16 (E1) G - BR D shift position signal Ignition switch ON and shift lever not in D Below 1 V

  2. CHECK ECM (for 2GR-FKS)

    A0027PZE60

    Tech Tips

    The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A43-38 (SFTU) - C1-53 (E1) V - BR Up-shift position switch signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-38 (SFTU) - C1-53 (E1) V - BR Up-shift position switch signal Ignition switch ON and shift lever in "+" Below 1 V
    A43-42 (ST1-) - C1-53 (E1) L - BR Stop light switch assembly signal Ignition switch ON and brake pedal depressed Below 1 V
    A43-42 (ST1-) - C1-53 (E1) L - BR Stop light switch assembly signal Ignition switch ON and brake pedal released 11 to 14 V
    A43-17 (S) - C1-53 (E1) LG - BR S shift position signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-17 (S) - C1-53 (E1) LG - BR S shift position signal Ignition switch ON and shift lever not in S range Below 1 V
    A43-41 (CCS) - C1-53 (E1) R - BR Cruise control main switch circuit Cruise control main switch (ON-OFF button) released 1 MΩ or higher
    A43-41 (CCS) - C1-53 (E1) R - BR Cruise control main switch circuit Cruise control main switch (ON-OFF button) pushed Below 1.5 Ω
    A43-41 (CCS) - C1-53 (E1) R - BR Cruise control main switch circuit +RES switch ON 235 to 245 Ω
    A43-41 (CCS) - C1-53 (E1) R - BR Cruise control main switch circuit -SET switch ON 617 to 643 Ω
    A43-41 (CCS) - C1-53 (E1) R - BR Cruise control main switch circuit CANCEL switch ON 1509 to 1571 Ω
    A43-37 (SFTD) - C1-53 (E1) SB - BR Down-shift position switch signal Ignition switch ON and shift lever in S range 11 to 14 V
    A43-37 (SFTD) - C1-53 (E1) SB - BR Down-shift position switch signal Ignition switch ON and shift lever in "-" Below 1 V
    A43-27 (STP) - C1-53 (E1) G - BR Stop light switch assembly signal Brake pedal depressed 11 to 14 V
    A43-27 (STP) - C1-53 (E1) G - BR Stop light switch assembly signal Brake pedal released Below 1 V
    C1-139 (D) - C1-53 (E1) R - BR D shift position signal Ignition switch ON and shift lever in D 11 to 14 V
    C1-139 (D) - C1-53 (E1) R - BR D shift position signal Ignition switch ON and shift lever not in D Below 1 V