2003 LEXUS LS430 Factory Repair Manual

Page 2265 of 4500

LEXUS LS430 2003  Factory Repair Manual NG: REPLACE FRONT DOOR LOCK ASSY RH
OK: Go to Next Step.  
3.INSPECT FRONT DOOR LOCK ASSY RH (DOOR CLOSER MOTOR) 
a. Disconnect the F24 ECU connector.  
b. Apply battery voltage and check operation of

Page 2266 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 77: Inspecting Front Door Lock Assy RH (Door Closer Motor) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 2267 of 4500

LEXUS LS430 2003  Factory Repair Manual NG: REPLACE FRONT DOOR LOCK ASSY RH
OK: REPLACE PASSENGER DOOR ECU  
CIRCUIT DESCRIPTION 
The door lock assembly has a built-in door closer motor. 
The door ECU actuates the door closer motor to fully

Page 2268 of 4500

LEXUS LS430 2003  Factory Repair Manual Measurement ConditionSpecified Condition
Battery positive (+) --> Terminal 2 Battery negative (-) --
> Terminal 1Moves to LOCK
Battery positive (+) --> Terminal 1 Battery negative (-) --
> Terminal 2M

Page 2269 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 79: Inspecting Rear Door Lock Assy LH (Door Lock Motor) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE REAR DOOR LOCK ASSY LH

Page 2270 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to Next Step.  
2.INSPECT REAR DOOR LOCK ASSY LH (POSITION SWITCH) 
a. Disconnect the R36 ECU connector.  
b. Measure the resistance of the position switch.  
TERMINALS RESISTANCE REFERENCE 
Te

Page 2271 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 80: Inspecting Front Door Lock Assy LH (Position Switch) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE REAR DOOR LOCK ASSY LH

Page 2272 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to Next Step.  
3.INSPECT REAR DOOR LOCK ASSY LH (DOOR CLOSER MOTOR) 
a. Disconnect the R36 ECU connector.  
b. Apply battery voltage and check operation of the door closer link.  
SPECIFIED CO