TERMINALS OF ECU
CHECK 4WD ECU ASSEMBLY
(a) Measure the voltage and resistance of the connector.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
R10-10 (4WDS) - R10-4 (GND) | P - W-B | AWD lock mode switch signal | Engine switch on (IG) AWD lock mode switch released → pressed and held | 11 to 14 V → Below 1 V |
R10-6 (CANH) - R10-5 (CANL) | B - W | HIGH-level CAN bus wire - LOW-level CAN bus wire | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
R10-4 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
R10-3 (IG1) - R10-4 (GND) | B - W-B | Power source voltage | Engine switch on (IG) | 11 to 14 V |
R10-2 (SLC+) - R10-1 (SLC-) | L - B | 4WD linear solenoid signal | Shift lever in D, engine idling | Pulse generation (See waveform 1) |
If the result is not as specified, the 4WD ECU assembly may have a malfunction.
(b) Using an oscilloscope, check the waveform 1.
Waveform 1 (Reference) Item | Content |
---|---|
Terminal No. (Symbol) | R10-2 (SLC+) - R10-1 (SLC-) |
Tester Range | 2 V/DIV., 1 msec./DIV. |
Condition | Shift lever in D, engine idling |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Combination Light Assembly (w/o Rear No. 2 Seat): Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL REAR COMBINATION LIGHT ASSEMBLY (a) Engage the grommet. (b) Engage the 3 guides and pin to temporarily install the rear combination ...
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