2003 LEXUS LS430 Factory Repair Manual

Page 2273 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 81: Inspecting Rear Door Lock Assy LH (Door Closer Motor)

Page 2274 of 4500

LEXUS LS430 2003  Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE REAR DOOR LOCK ASSY LH  
OK: REPLACE REAR DOOR ECU LH  
CIRCUIT DESCRIPTION 
The door lock assembly has a built-in door closer motor. 
The door

Page 2275 of 4500

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

Page 2276 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 83: Inspecting Rear Door Lock Assy RH (Door Lock Motor) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE REAR DOOR LOCK ASSY RH

Page 2277 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to Next Step.  
2.INSPECT REAR DOOR LOCK ASSY RH (POSITION SWITCH) 
a. Disconnect the R37 ECU connector.  
b. Measure the resistance of the position switch.  
TERMINALS RESISTANCE REFERENCE 
Te

Page 2278 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 84: Inspecting Front Door Lock Assy RH (Position Switch) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE REAR DOOR LOCK ASSY RH

Page 2279 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to Next Step.  
3.INSPECT REAR DOOR LOCK ASSY RH (DOOR CLOSER MOTOR) 
a. Disconnect the R37 ECU connector.  
b. Apply battery voltage and check operation of the door closer link.  
SPECIFIED CO

Page 2280 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 85: Inspecting Rear Door Lock Assy RH (Door Closer Motor) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.