2003 LEXUS LS430 Factory Repair Manual

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Page 1329 of 4500

LEXUS LS430 2003 Factory Repair Manual NG: REPAIR OR REPLACE TELEVISION CAMERA ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 42.CONNECT CONNECTOR a. Reconnect the television camera ECU connector (T24). 43.CHECK CAN BUS LINES FOR SHORT

Page 1330 of 4500

LEXUS LS430 2003 Factory Repair Manual a. Disconnect the television camera ECU sub bus line connector (J52) from the LUG-CAN J/C A side (w/earth terminal). Fig. 121: Identifying DLC3 Connector terminals Courtesy of TOYOTA MOTOR SALES,

Page 1331 of 4500

LEXUS LS430 2003 Factory Repair Manual a. Reconnect the television camera ECU sub bus line connector (J52) to the LUG-CAN J/C A side (w/earth terminal). 45.CHECK CAN BUS LINES FOR SHORT (SEAT BELT CONTROL ECU SUB BUS LINE) Fig. 122: Id

Page 1332 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: REPAIR OR REPLACE SEAT BELT CONTROL ECU SUB BUS LINE OR CONNECTOR CIRCUIT DESCRIPTION There may be a short circuit between the CAN bus lines when the resistance between terminals 6 (CANH) and 14

Page 1333 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 124: Wiring Diagram - CAN Bus Lines For Short Circuit (W/O LEXUS Navigation System) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.CHECK CAN BUS LINES FOR SHORT CIRCUIT (D

Page 1334 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 125: Disconnecting DLC3 Sub Bus Line Connector (J42) From D-CAN J/C B Side (W/O Earth Terminal) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Turn the ignition switch to the LOCK position.

Page 1335 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 126: Identifying DLC3 Connector terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. c. Measure the resistance according to the value (s) in the table below. Standard: DLC3 CONNECTOR TERM

Page 1336 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 127: Disconnecting CAN Main Bus Line Connector (J45) From P-CAN J/C A Side (W/Earth Terminal) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the CAN main bus line connector (J45) f
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