CRUISE CONTROL SYSTEM(for 8AR-FTS, 2GR-FKS) TERMINALS OF ECM


  1. CHECK ECM

    B003TADN03

    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.

    (Symbol)

    		 Wiring Color Terminal Description Condition Specified Condition
    A91-1 (BATT) - F78-53 (E1) L - W-B Constant power source Always 11 to 14 V
    A91-10 (ST1-) - F78-53 (E1) P - W-B Stop light signal Engine switch on (IG) and brake pedal depressed Below 1 V
    Engine switch on (IG) and brake pedal released 11 to 14 V
    A91-9 (STP) - F78-53 (E1) R - W-B Stop light signal Brake pedal depressed 11 to 14 V
    Brake pedal released Below 1 V
    A91-43 (SFTD) - F78-53 (E1) P - W-B Down shift switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever in (-) Below 1 V
    A91-42 (SFTU) - F78-53 (E1) V - W-B Up shift switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever in (+) Below 1 V
    F78-34 (D) - F78-53 (E1) W - W-B D shift position signal Engine switch on (IG) and shift lever in D or M 11 to 14 V
    Engine switch on (IG) and shift lever in other than D or M Below 1 V
    A91-55 (CCS) - A91-41 (ECCS) B - L Cruise control main switch circuit Cruise control main switch off 10 kΩ or higher
    Cruise control main switch on Below 2.5 Ω
    +/RES switch on 235 to 245 Ω
    -/SET switch on 617 to 643 Ω
    CANCEL switch on 1509 to 1571 Ω