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Terminals Of ECM

WARNING: This page is about a different car, the 2006 Lexus IS 350 and 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ECM 
    Fig 1: Identifying ECM Terminal Connector
    G04049195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL SPECIFICATION CHART

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    A6-3 (TC) - E4-7 (E1) V - BR Ground Engine switch on (IG) 10 to 14 V
    A6-3 (TC) - E4-7 (E1) V - BR Ground Connect terminals TC and CG of DLC3 Below 1 V
    A6-4 (STP) - E4-7 (E1) R-B - BR Stop light signal Engine switch on (IG), Depress brake pedal 10 to 14 V
    A6-4 (STP) - E4-7 (E1) R-B - BR Stop light signal Engine switch on (IG), Release brake pedal Below 1 V
    A6-31 (CCS) - E4-7 (E1) L-B - BR Cruise control main switch circuit Engine switch on (IG) 10 to 14 V
    A6-31 (CCS) - E4-7 (E1) L-B - BR Cruise control main switch circuit CANCEL switch ON 6.6 to 10.1 V
    A6-31 (CCS) - E4-7 (E1) L-B - BR Cruise control main switch circuit SET/COAST switch ON 4.5 to 7.1 V
    A6-31 (CCS) - E4-7 (E1) L-B - BR Cruise control main switch circuit RES/ACC switch ON 2.3 to 4.0 V
    A6-31 (CCS) - E4-7 (E1) L-B - BR Cruise control main switch circuit MAIN switch ON Below 1 V
    A5-8 (ST1-) - E4-7 (E1) G-W - BR Stop light signal Engine switch on (IG), Depress brake pedal Below 1 V
    A5-8 (ST1-) - E4-7 (E1) G-W - BR Stop light signal Release brake pedal Engine switch on (IG) 10 to 14 V
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