Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WIRE HARNESS (LIMIT SWITCH CIRCUIT)
1. Disconnect the D17 power window regulator master switch and P7 power window regulator motor assy LH connectors.
  
  Fig 1: Disconnecting Power Window Regulator Master Switch & Power Window Regulator Motor Assy LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the continuity between the disconnected connectors.
Standard:

Fig 2: Checking Continuity Between Limit Switch Circuit Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR

OK: Go to next step.
CHECK WIRE HARNESS (PULSE SENSOR CIRCUIT)
1. Disconnect the D17 power window regulator master switch and P7 power window regulator motor assy LH connectors.
  
  Fig 3: Disconnecting Power Window Regulator Master Switch & Power Window Regulator Motor Assy LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the continuity between the disconnected connectors.
Standard:

Fig 4: Checking Continuity Between Pulse Sensor Circuit Specifications Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR

OK: Go to next step.
REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH
1. Replace the power window regulator motor assy LH.
2. Check the power window operation.
OK: END

NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY