2003 LEXUS LS430 Factory Repair Manual

Page 2889 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 192: Identifying Transmission Control Switch Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Standard:  
TRANSMISSION CONTROL SWITCH - BODY GROUND - RESISTANCE TABLE 
NG: REPAI

Page 2890 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to next step  
3.INSPECT TRANSMISSION CONTROL SWITCH 
a. Measure resistance between each terminal of shift lock control unit assy when the shift lever is 
moved to each position. 
Fig. 193: Ide

Page 2891 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 194: Transmission Control Switch Reference Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE TRANSMISSION CONTROL SWITCH (See COMPONENTS
 )  
OK: Go to next step  
4.CHECK HARNESS

Page 2892 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 195: Identifying ECM Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Standard:  
Fig. 196: Transmission Control Switch Reference Chart
 
Courtesy of TOYOTA MOTOR SALES, U.S.A.,

Page 2893 of 4500

LEXUS LS430 2003  Factory Repair Manual e. Measure the resistance according to the value(s) in the table below when the shift lever is moved to 
each position. 
Fig. 197: Disconnecting ECM Connector
 
Courtesy of TOYOTA MOTOR SALES, U.S.A.,

Page 2894 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 198: Transmission Control Switch Reference Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT 
INSPECTION PROCEDURE )  
OK: PR

Page 2895 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 199: Pattern Select Switch Circuit (PWR) - Wiring Diagram 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSY NO. 1 - BO

Page 2896 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 200: Identifying Pattern Select Switch Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Standard:  
PATTERN SELECT SWITCH NO. 1 - BODY GROUND - RESISTANCE TABLE 
NG: REPAIR OR R