2003 LEXUS LS430 Factory Repair Manual

Page 1297 of 4500

LEXUS LS430 2003  Factory Repair Manual LINE) 
Fig. 90: Disconnecting Suspension Control ECU Sub Bus Line Connector (J38) From D
-CAN J/C A 
Side (W/Earth Terminal) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Disconnect the suspension

Page 1298 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 91: 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 TERMI

Page 1299 of 4500

LEXUS LS430 2003  Factory Repair Manual 6.CONNECT CONNECTOR 
a. Reconnect the suspension control ECU sub bus line connector (J38) to the D-CAN J/C A side 
(w/earth terminal).  
7.CHECK CAN BUS LINES FOR SHORT CIRCUIT (GATEWAY ECU) 
Fig. 92:

Page 1300 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 93: 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 TERMI

Page 1301 of 4500

LEXUS LS430 2003  Factory Repair Manual 8.CONNECT CONNECTOR 
a. Reconnect the gateway ECU sub bus line connector (J36) to the D-CAN J/C A side (w/earth 
terminal).  
9.CHECK CAN BUS LINES FOR SHORT CIRCUIT (ECM SUB BUS LINE) 
Fig. 94: Disco

Page 1302 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 95: 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 TERMI

Page 1303 of 4500

LEXUS LS430 2003  Factory Repair Manual 10.CONNECT CONNECTOR 
a. Reconnect the ECM sub bus line connector (J40) to the D-CAN J/C B side (w/o earth terminal).  
11.CHECK CAN BUS LINES FOR SHORT CIRCUIT (SKID CONTROL ECU WITH ACTUATOR 
SUB BU

Page 1304 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 97: 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 TERMI