Terminals Of Ecu [08/2020 - ]
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- CHECK 4WD ECU ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Measure the voltage and resistance of the connector.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G131-6 (CANH) - G131-5 (CANL) G - W HIGH-level CAN bus wire - LOW-level CAN bus wire Cable disconnected from negative (-) battery terminal 54 to 69 Ω G131-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω G131-3 (IG1) - G131-4 (GND) BE - W-B Power source voltage Engine switch on (IG) 11 to 14 V G131-2 (SLC+) - G131-1 (SLC-) W - B 4WD linear solenoid signal D position, engine 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)
Item Content Terminal No. (Symbol) G131-2 (SLC+) - G131-1 (SLC-) Tester Range 2 V/DIV., 1 msec./DIV. Condition D position, engine idling
- Measure the voltage and resistance of the connector.