CRUISE CONTROL SYSTEM > TERMINALS OF ECU

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CHECK ECM (1GR-FE)

G035613E02

  1. Disconnect the E14, E15 and E17 ECM connectors.

  2. Measure the voltage and resistance of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BATT (E14-3) - E1 (E17-1)
    		L - BR
    		Battery
    		Always
    		10 to 14 V
    IGSW (E14-9) - E1 (E17-1)
    		B-O - BR
    		IG power supply
    		Ignition switch ON
    		10 to 14 V
    IGSW (E14-9) - E1 (E17-1)
    		B-O - BR
    		IG power supply
    		Ignition switch OFF
    		Below 1 V
    E1 (E17-1) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E2 (E15-28) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the E14, E15 and E17 ECM connectors.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    STP (E14-15) - E1 (E17-1)
    		G-W - BR
    		Stop light switch input signal
    		Ignition switch ON, release brake pedal
    		Below 1 V
    STP (E14-15) - E1 (E17-1)
    		G-W - BR
    		Stop light switch input signal
    		Ignition switch ON, depress brake pedal
    		10 to 14 V
    ST1- (E14-16) - E1 (E17-1)
    		R-L - BR
    		Cruise cancel input signal
    		Ignition switch ON, depress brake pedal
    		Below 1 V
    ST1- (E14-16) - E1 (E17-1)
    		R-L - BR
    		Cruise cancel input signal
    		Ignition switch ON, release brake pedal
    		10 to 14 V
    CCS (E13-2) - E1 (E17-1)
    		G-W - BR
    		Cruise control main switch signal
    		Ignition switch ON
    		10 to 14 V
    CCS (E13-2) - E1 (E17-1)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on CANCEL
    		6.6 to 10.1 V
    CCS (E13-2) - E1 (E17-1)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on SET/COAST
    		4.5 to 7.1 V
    CCS (E13-2) - E1 (E17-1)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on RES/ACC
    		2.3 to 4.0 V
    CCS (E13-2) - E1 (E17-1)
    		G-W - BR
    		Cruise control main switch signal
    		Press and hold main switch ON-OFF button
    		Below 1 V
    If the result is not as specified, the ECM may have a malfunction.


CHECK ECM (1KD-FTV)

E110509E01

  1. Disconnect the E5, E6, E7 and E8 ECM connectors.

  2. Measure the voltage and resistance of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BATT (E6-2) - E1 (E7-7)
    		L - BR
    		Battery
    		Always
    		10 to 14 V
    IGSW (E5-9) - E1 (E7-7)
    		B-O - BR
    		IG power supply
    		Ignition switch ON
    		10 to 14 V
    IGSW (E5-9) - E1 (E7-7)
    		B-O - BR
    		IG power supply
    		Ignition switch OFF
    		Below 1 V
    E1 (E7-7) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E2 (E8-28) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the E5, E6, E7 and E8 ECM connectors.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    STP (E6-15) - E1 (E7-7)
    		G-W - BR
    		Stop light switch input signal
    		Ignition switch ON, release brake pedal
    		Below 1 V
    STP (E6-15) - E1 (E7-7)
    		G-W - BR
    		Stop light switch input signal
    		Ignition switch ON, depress brake pedal
    		10 to 14 V
    ST1- (E6-14) - E1 (E7-7)
    		R-L - BR
    		Cruise cancel input signal
    		Ignition switch ON, depress brake pedal
    		Below 1 V
    ST1- (E6-14) - E1 (E7-7)
    		R-L - BR
    		Cruise cancel input signal
    		Ignition switch ON, release brake pedal
    		10 to 14 V
    CCS (E5-21) - E1 (E7-7)
    		G-W - BR
    		Cruise control main switch signal
    		Ignition switch ON
    		10 to 14 V
    CCS (E5-21) - E1 (E7-7)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on CANCEL
    		6.6 to 10.1 V
    CCS (E5-21) - E1 (E7-7)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on SET/COAST
    		4.5 to 7.1 V
    CCS (E5-21) - E1 (E7-7)
    		G-W - BR
    		Cruise control main switch signal
    		Set and hold main switch on RES/ACC
    		2.3 to 4.0 V
    CCS (E5-21) - E1 (E7-7)
    		G-W - BR
    		Cruise control main switch signal
    		Press and hold main switch ON-OFF button
    		Below 1 V
    If the result is not as specified, the ECM may have a malfunction.