2003 LEXUS LS430 Factory Repair Manual

Page 1481 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 267: Identifying DLC3 Connector terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Measure the resistance according to the value (s) in the table below.  
Standard:  
DLC3 CONNECTOR TERM

Page 1482 of 4500

LEXUS LS430 2003  Factory Repair Manual 13.CHECK CAN BUS LINE FOR SHORT TO GND (STEERING SENSOR SUB BUS LINE) 
Fig. 268: Identifying Steering Sensor Sub Bus Line Connector (J43)
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Disconnect

Page 1483 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 269: Identifying DLC3 Connector terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Measure the resistance according to the value (s) in the table below.  
Standard:  
DLC3 CONNECTOR TERM

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LEXUS LS430 2003  Factory Repair Manual 15.CHECK CAN BUS LINE FOR SHORT TO GND (D-CAN J/C) 
Fig. 270: Disconnecting CAN Main Bus Line Connector (J37) From D
-CAN J/C A Side (W/Earth 
Terminal) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 271: Identifying DLC3 Connector terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Measure the resistance according to the value (s) in the table below.  
Standard:  
DLC3 CONNECTOR TERM

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LEXUS LS430 2003  Factory Repair Manual (w/earth terminal).  
17.CHECK CAN BUS LINE FOR SHORT TO GND (SUSPENSION CONTROL ECU SUB BUS 
LINE) 
Fig. 272: Identifying DLC3 Connector terminals
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. D

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LEXUS LS430 2003  Factory Repair Manual NG: REPAIR OR REPLACE SUSPENSION CONTROL ECU SUB BUS LINE OR CONNECTOR 
(CAN-H, CAN-L)  
18.CONNECT CONNECTOR 
a. Reconnect the gateway ECU sub bus line connector (J36) to the D-CAN J/C A side (w/eart

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LEXUS LS430 2003  Factory Repair Manual OK: REPLACE GATEWAY ECU  
NG: REPAIR OR REPLACE GATEWAY ECU SUB BUS LINE OR CONNECTOR (CAN-H, 
CAN-L)  
20.CONNECT CONNECTOR 
a. Reconnect the ECM sub bus line connector (J40) to the D-CAN J/C B side