Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW LOCK SWITCH
1. Turn the window lock switch OFF. Then operate the remote UP/DOWN function of the power window regulator master switch assy, passenger door and rear door windows. Check if function operates normally.
OK: Remote UP/DOWN function operates normally.

NG: Go to step 2

Fig 1: Checking Power Window Lock Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step.
CHECK MANUAL UP/DOWN FUNCTION
1. Check that the passenger side power window manual UP/DOWN function operates normally.
NG: OTHER PROBLEM (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step.
CHECK WIRE HARNESS
1. Disconnect the D25, F17, R13 and R14 ECU connector.
2. Disconnect the DG and DI J/B connectors.
3. Disconnect the PE and PI J/B connectors.
4. Measure the resistance of the wire harness side connectors.
Standard:

Fig 2: Terminals Resistance Reference Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Driver side J/B, passenger side J/B

Fig 3: Terminals Resistance Reference Chart (Driver Side J/B, Passenger Side J/B)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Checking Driver side J/B, passenger side J/B Wire Harness
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )