DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminal 18 (CA4H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the network gateway ECU and terminal 16 (BAT) of the DLC3.
Symptom | Trouble Area |
---|---|
No resistance exists between terminal 18 (CA4H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the network gateway ECU and terminal 16 (BAT) of the DLC3. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
Click here
HINT:
PROCEDURE
1. | CHECK FOR SHORT TO +B IN CAN BUS LINE (NETWORK GATEWAY ECU) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the J75 network gateway ECU connector.
*A | for DLC3 Connector Type A | *B | for DLC3 Connector Type B |
*1 | DLC3 | - | - |
*a | Front view of wire harness connector (to Network Gateway ECU) | - | - |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for DLC3 Connector Type A Tester Connection | Condition | Specified Condition |
---|---|---|
J75-18 (CA4H) - J12-16 (BAT) | Cable disconnected from negative (-) battery terminal | 6 kΩ or higher |
J75-17 (CA4L) - J12-16 (BAT) |
Tester Connection | Condition | Specified Condition |
---|---|---|
J75-18 (CA4H) - J141-16 (BAT) | Cable disconnected from negative (-) battery terminal | 6 kΩ or higher |
J75-17 (CA4L) - J141-16 (BAT) |
OK | ![]() | REPLACE NETWORK GATEWAY ECU |
|
2. | CHECK FOR SHORT TO +B IN CAN BUS LINE (ECM) |
(a) Reconnect the J75 network gateway ECU connector.
(b) Disconnect the A37 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
*A | for DLC3 Connector Type A | *B | for DLC3 Connector Type B |
*1 | DLC3 | - | - |
*a | Front view of wire harness connector (to ECM) | - | - |
Standard Resistance:
for DLC3 Connector Type A Tester Connection | Condition | Specified Condition |
---|---|---|
A37-13 (CANH) - J12-16 (BAT) | Cable disconnected from negative (-) battery terminal | 6 kΩ or higher |
A37-26 (CANL) - J12-16 (BAT) |
Tester Connection | Condition | Specified Condition |
---|---|---|
A37-13 (CANH) - J141-16 (BAT) | Cable disconnected from negative (-) battery terminal | 6 kΩ or higher |
A37-26 (CANL) - J141-16 (BAT) |
OK | ![]() | REPLACE ECM |
NG | ![]() | REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (ECM - NETWORK GATEWAY ECU) |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Main body ECU (multiplex network body ECU) Multiplex network door ECU
Power back door ON/OFF signal
Combination switch assembly signal
Power back door switch (integration control ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Door Window Frame Moulding: Components
COMPONENTS ILLUSTRATION *1 REAR DOOR REAR WINDOW FRAME MOULDING *2 REAR DOOR UPPER WINDOW FRAME MOULDING *3 REAR DOOR WEATHERSTRIP *4 REAR DOOR WINDOW FRAME MOULDING SUB-ASSEMBLY *5 RIVET - - ● Non-reusable part - - ...