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Terminals Of ECM

  1. CHECK ECM 
    Fig 1: Identifying ECM Connectors Terminals
    GTY137652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminals No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A10-27 (TC) - B12-81 (E1) P - W-B Ground Engine switch on (IG) 11 to 14 V
    A10-27 (TC) - B12-81 (E1) P - W-B Ground Connect terminals TC and CG of DLC3 Below 1 V
    A10-36 (STP) - B12-81 (E1) W - W-B Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V
    A10-36 (STP) - B12-81 (E1) W - W-B Stop light signal Engine switch on (IG), Brake pedal released Below 1 V
    A10-35 (ST1-) - B12-81 (E1) GR - W-B Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V
    A10-35 (ST1-) - B12-81 (E1) GR - W-B Stop light signal Engine switch on (IG), Brake pedal released 11 to 14 V
    A10-40 (CCS) - B12-81 (E1) GR - W-B Cruise control main switch circuit Engine switch on (IG) 11 to 14 V
    A10-40 (CCS) - B12-81 (E1) GR - W-B Cruise control main switch circuit Engine switch on (IG), CANCEL switch ON 6.6 to 10.1 V
    A10-40 (CCS) - B12-81 (E1) GR - W-B Cruise control main switch circuit Engine switch on (IG), SET/COAST switch ON 4.5 to 7.1 V
    A10-40 (CCS) - B12-81 (E1) GR - W-B Cruise control main switch circuit Engine switch on (IG), RES/ACC switch ON 2.3 to 4.0 V
    A10-40 (CCS) - B12-81 (E1) GR - W-B Cruise control main switch circuit Engine switch on (IG), MAIN switch ON Below 1 V
    B12-62 (NSW) - B12-81 (E1) L-B - W-B Park/Neutral position switch signal Engine switch on (IG), Shift lever position P or N Below 1 V
    B12-62 (NSW) - B12-81 (E1) L-B - W-B Park/Neutral position switch signal Engine switch on (IG), Shift lever position other than P or N 11 to 14 V
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