Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Check shift solenoid valve SLU operation.
PREPARATION:
1. Remove the oil pan.
2. Remove the shift solenoid valve SLU.
  CHECK:
  
  Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
  
  OK:
  
  Fig 1: Locating Valves Moves Arrow
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG : Replace the shaft solenoid valve SLU (See VALVE BODY ASSEMBLY ).
  
  Fig 2: Connecting Positive (+) Lead From Battery To Terminal 2 And Negative (-) Lead To Terminal 1
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. OK : Go to next step.
Check valve body (See PROBLEM SYMPTOMS TABLE ).
1. NG : Replace the valve body (See VALVE BODY ASSEMBLY ).
2. OK : Go to next step.
Check torque converter clutch (See TORQUE CONVERTER CLUTCH AND DRIVE PLATE ).
1. OK : Repair or replace transmission (See COMPONENTS ).
2. NG : Replace the torque converter clutch.