2003 LEXUS LS430 Control actuator

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Page 86 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to next step  
The same DTC is recorded.  
NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS 
TABLE  
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT
 )  
CIRCUIT DESCR

Page 97 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 69: Identifying Skid Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR  
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLA

Page 101 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 73: Identifying SKID Control ECU Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
3.RECONFIRM DTC 
HINT: 
This code is detected when a problem is determined in the brake actuato

Page 102 of 4500

LEXUS LS430 2003  Factory Repair Manual HINT: 
It is suspect that the DTCs output was caused by the poor connection on the connector terminal. 
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT
 )  
CIRCUIT DESCRIPTION 
If trouble o

Page 103 of 4500

LEXUS LS430 2003  Factory Repair Manual NORMAL CODE DESCRIPTION 
B: REPAIR ENGINE CONTROL SYSTEM ACCORDING TO DTC OUTPUT  
A: REPLACE ECM  
CIRCUIT DESCRIPTION 
DTC DETECTING CONDITION DESCRIPTION 
INSPECTION PROCEDURE 
REPLACE ECM  
CIRCUI

Page 125 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to next step  
2.INSPECT BATTERY 
a. Check the battery voltage.  
Standard:  
Voltage: 10 to 14 V  
NG: INSPECT CHARGING SYSTEM (SEE ON
-VEHICLE INSPECTION )  
OK: Go to next step  
3.INSPECT S

Page 126 of 4500

LEXUS LS430 2003  Factory Repair Manual TESTER CONNECTION SPECIFIED CONDITION
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND TERMINAL - BODY 
GROUND)  
Fig. 92: Identifying Skid Control ECU Connector Terminals
 
Courtesy of TOYOTA MOTOR SA

Page 128 of 4500

LEXUS LS430 2003  Factory Repair Manual c. Select the DATA LIST mode on the hand-held tester. 
MEASUREMENT ITEM / RANGE (DISPLAY) DESCRIPTION 
d. Check that the brake fluid pressure value of the master cylinder pressure sensor observed in t
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