TERMINALS OF ECU
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
J157-1 (+B) - J157-20 (E) | Y - W-B | Power source (+B) | Always | 11 to 14 V |
J157-3 (SIG-) - J157-20 (E) | G - W-B | Ground | Always | Below 1 V |
J157-4 (IND1) - J157-20 (E) | LG - W-B | Manual (SOS) switch red indicator illumination signal | For 2 seconds after turning the engine switch on (IG) | 1 to 8.5 V |
Engine switch off | Below 1 V | |||
J157-5 (MCVD) - J157-20 (E) | L - W-B | Telephone microphone assembly power supply | Engine switch on (ACC) | 4 to 6 V |
Engine switch off | Below 1 V | |||
J157-6 (MCI+) - J157-20 (E) | P - W-B | Receive microphone voice signal | Voice being input to telephone microphone assembly | A waveform synchronized with microphone voice signal is input |
J157-7 (MCI-) - J157-20 (E) | G - W-B | Receive microphone voice signal | Always | Below 1 V |
J157-13 (GSW) - J157-20 (E) | L - W-B | Collision detection signal | Engine switch on (IG) | Pulse generation (Refer to waveform1) |
J157-19 (IG2) - J157-20 (E) | B - W-B | Power source (IG) | Engine switch on (IG) | 11 to 14 V |
Engine switch off | Below 1 V | |||
J157-20 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
J157-21 (SIG1) - J157-3 (SIG-) | R - G | Manual (SOS) switch button condition signal | Manual (SOS) switch not pressed | 1.3 to 1.9 V |
Manual (SOS) switch pressed | 0.5 to 0.8 V | |||
J157-22 (IND2) - J157-20 (E) | V - W-B | Manual (SOS) switch green indicator illumination signal | For 2 seconds after turning the engine switch on (IG) | 1 to 8.5 V |
Engine switch off | Below 1 V | |||
J157-23 (SGND) - J157-20 (E) | Shielded - W-B | Shield ground | Always | Below 1 Ω |
J157-25 (CANP) | R | CAN communication signal | - | - |
J157-26 (CANN) | W | CAN communication signal | - | - |
CHECK DCM (TELEMATICS TRANSCEIVER)
(a) Oscilloscope waveform:
(1) Waveform 1
Item | Condition |
---|---|
Tester connection | J157-13 (GSW) - J157-20 (E) |
Tool setting | 5.0 V/DIV., 20 ms/DIV. |
Vehicle condition | Engine switch on (IG) |
CHECK RADIO RECEIVER ASSEMBLY
w/o Navigation System: Click here
w/ Navigation System: Click here
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning Filter: Installation
INSTALLATION PROCEDURE 1. INSTALL CLEAN AIR FILTER (a) Engage the 4 guides as indicated by the arrows, in the order shown in the illustration to install the clean air filter to the air filter case. Install in this Direction (1) Install in this Direction (2) NOTICE: Make sure that the ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Brake Fluid: Bleeding
BLEEDING CAUTION / NOTICE / HINT NOTICE:
Move the shift lever to P and apply the parking brake before bleeding the brakes.
Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.
If brake fluid leaks onto any painted surface, immediately was ...