DESCRIPTION
There may be an open circuit in one of the bus 3 main lines when the resistance between terminals 6 (CA3H) and 21 (CA3L) of the network gateway ECU is 70 Ω or higher.
Symptom | Trouble Area |
---|---|
Resistance between terminals 6 (CA3H) and 21 (CA3L) of network gateway ECU is 70 Ω or higher. |
|
This malfunction is not related to the lines of a bus 3 branch or to ECUs or sensors connected to a bus 3 branch.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
Click here
HINT:
PROCEDURE
1. | CHECK FOR OPEN IN CAN BUS LINES (NO. 6 CAN JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the J98 No. 6 CAN junction connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition | Connected to |
---|---|---|---|
J98-7 (CANH) - J98-18 (CANL) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω | Network gateway ECU |
J98-11 (CANH) - J98-22 (CANL) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω | Network gateway ECU |
OK | REPLACE NO. 6 CAN JUNCTION CONNECTOR |
|
2. | CHECK FOR OPEN IN CAN BUS LINES (NETWORK GATEWAY ECU - NO. 6 CAN JUNCTION CONNECTOR) |
(a) Reconnect the J98 No. 6 CAN junction connector.
(b) Disconnect the J75 network gateway ECU connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J75-6 (CA3H) - J75-19 (CAYH) | Cable disconnected from negative (-) battery terminal | Below 1 Ω |
J75-21 (CA3L) - J75-20 (CAYL) | Cable disconnected from negative (-) battery terminal | Below 1 Ω |
OK | REPLACE NETWORK GATEWAY ECU |
NG | REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NETWORK GATEWAY ECU - NO. 6 CAN JUNCTION CONNECTOR) |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Wiper And Washer System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Wiper and Washer System DTC No. Detection Item DTC Detection Condition Link B1245 Lost Communication with Wiper ECU LIN When the battery voltage is 9.5 V or more, a communication malfunction between the main body ECU (multiplex network body ECU) and win ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Clearance Warning Buzzer (for Rear Side Without Rear No. 2 Seat): Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 2 CLEARANCE WARNING BUZZER (a) Connect the connector. (b) Engage the clamp to install the No. 2 clearance warning buzzer. 2. INSTALL DECK TRIM SIDE PANEL ASSEMBLY RH Click here 3. INSTALL RECLINING REMOTE CONTROL BEZEL RH (w/o Rear Power Seat System) Click her ...