Terminals Of 4WD Ecu Assembly [12/2013 - ]

CHECK 4WD ECU ASSEMBLY

Fig 1: 4WD ECU Assembly Connector End View F14

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Measure the voltage and resistance of the connector.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
F14-10 (4WDL) - F14-4 (GND)	BE - BR	AWD lock switch signal	Ignition switch ON AWD lock switch OFF → ON	11 to 14 V → Below 1 V
F14-6 (CANH) - F14-5 (CANL)	L - W	HIGH-level CAN bus wire - LOW-level CAN bus wire	Cable disconnected from negative (-) battery terminal	54 to 69 Ω
F14-4 (GND) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω
F14-3 (IG1) - F14-4 (GND)	B - BR	Power source voltage	Ignition switch ON	11 to 14 V
F14-2 (SLC+) - F14-1 (SLC-)	G - R	4WD linear solenoid signal	Shift lever in D, idling	Pulse generation (See waveform 1)

If the result is not as specified, the 4WD ECU assembly may have a malfunction.

Using an oscilloscope, check the waveform 1.

WAVEFORM 1 (REFERENCE)

Fig 2: Waveform 1