Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Terminals Of Ecu
TERMINALS OF ECU
CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
| *a | Component without harness connected (Skid Control ECU (Brake Actuator Assembly)) | - | - |
(a) Disconnect the A41 skid control ECU (brake actuator assembly) connectors.
(b) Measure the voltage and resistance according to the value (s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A41-14 (+BS) - Body ground | L - Body ground | Parking brake motor (parking brake actuator assembly) power supply | Always | 11 to 14 V |
| A41-45 (IG1) - Body ground | V - Body ground | IG power supply | Engine switch on (IG) | 11 to 14 V |
| A41-1 (GND1) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| A41-30 (GND2) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| A41-13 (MRR+) - Body ground | Y - Body ground | Parking brake motor RH (parking brake actuator assembly RH) (+) | - | - |
| A41-12 (MRR-) - Body ground | R - Body ground | Parking brake motor RH (parking brake actuator assembly RH) (-) | - | - |
| A41-3 (MRL+) - Body ground | B - Body ground | Parking brake motor LH (parking brake actuator assembly LH) (+) | - | - |
| A41-2 (MRL-) - Body ground | L - Body ground | Parking brake motor LH (parking brake actuator assembly LH) (-) | - | - |
| A41-38 (POL) - Body ground | L - Body ground | Electric parking brake switch indicator light | - | - |
| A41-36 (SWI1) - Body ground | G - Body ground | Electric parking brake switch (electric parking brake switch assembly) | - | - |
| A41-31 (SWO1) - Body ground | LG - Body ground | Electric parking brake switch (electric parking brake switch assembly) | - | - |
| A41-41 (SWI2) - Body ground | W - Body ground | Electric parking brake switch (electric parking brake switch assembly) | - | - |
| A41-39 (SWO2) - Body ground | R - Body ground | Electric parking brake switch (electric parking brake switch assembly) | - | - |
| A41-27 (CANH) - Body ground | B - Body ground | CAN communication line H | - | - |
| A41-43 (CANL) - Body ground | W - Body ground | CAN communication line L | - | - |
Test Mode Procedure
TEST MODE PROCEDURE REAR BRAKE PAD REPLACEMENT MODE *1 Rear Disc Brake Piston *2 Nut *a The nut moves inward in pad replacement mode HINT: When replacing the rear disc brake pad a ...
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC AND FREEZE FRAME DATA (USING TECHSTREAM) (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Can Communication System: Lost Communication with Gateway Module (Main Body ECU) (U1002)
DESCRIPTION
The main body ECU (multiplex network body ECU) will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 1.
When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Inside Vehicle: General Maintenance
GENERAL MAINTENANCE CAUTION / NOTICE / HINT
These are maintenance and inspection items that are considered to be the owner's responsibility.
The owner can do them or they can have them done at a service center. These items include those that should be checked on a daily basis, those that in most ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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