Remote Up / Down Function Does Not Operate

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: Remote Up / Down Function does not Operate

Remote Up / Down Function does not Operate

DESCRIPTION

If the remote control does not operate, the remote function may have been disables by a malfunction that was detected in the power window circuit. Also, when any power window switch or the wire harness has a malfunction, the remote control for the applicable power window does not function.

WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: Check which power window cannot be operated, and then proceed with the troubleshooting for the applicable power window as shown in the table below.





PROCEDURE

1. CHECK MANUAL UP / DOWN FUNCTION (PASSENGER SIDE)
(a) Check that the door glass can be operated by the power window switch.
NG -- OTHER PROBLEM
OK -- Continue to next step.
2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH
(a) Using the Techstream, check operation of the master switch using the Data List.
Standard:
Driver Door






NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH
OK -- Continue to next step.
3. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH)




(a) Disconnect the P7 power window switch connector.
(b) Turn the ignition switch ON.
(c) Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the passenger side switch of the power window master switch.
Standard:
The waveform is as shown in the illustration.
NG -- REPLACE POWER WINDOW REGULATOR SWITCH (REAR LH)
OK -- Continue to next step.
4. CHECK WIRE HARNESS (POWER WINDOW SWITCH - BODY ECU)




(a) Disconnect the B3 body ECU connector from the instrument panel J/B assembly.
(b) Check the continuity between the terminals of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)
5. CHECK MANUAL UP / DOWN FUNCTION (REAR LH)
(a) Check that the power window can be operated by the power window switch.
NG -- OTHER PROBLEM
OK -- Continue to next step.
6. INSPECT POWER WINDOW REGULATOR MASTER SWITCH
(a) Using the Techstream, check operation of the master switch using the data list.
Standard:
Driver Door






NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH
OK -- Continue to next step.
7. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH)




(a) Disconnect the P8 power window switch connector.
(b) Turn the ignition switch ON.
(c) Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the rear LH switch of the master switch.
Standard:
The waveform is as shown in the illustration.
OK -- REPLACE POWER WINDOW REGULATOR SWITCH (REAR LH)
NG -- Continue to next step.
8. CHECK WIRE HARNESS (POWER WINDOW SWITCH - BODY ECU)




(a) Disconnect the B4 body ECU connector from the instrument panel J/B assembly.
(b) Check the continuity between the terminals of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)
9. CHECK MANUAL UP / DOWN FUNCTION (REAR LH)
(a) Check that the power window can be operated by the power window switch.
NG -- OTHER PROBLEM
OK -- Continue to next step.
10. INSPECT POWER WINDOW REGULATOR MASTER SWITCH
(a) Using the Techstream, check operation of the master switch using the data list.
Standard:
Driver Door






NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH
OK -- Continue to next step.
11. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH)




(a) Disconnect the P9 power window switch connector.
(b) Turn the ignition switch ON.
(c) Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the rear RH switch of the master switch.
Standard:
The waveform is as shown in the illustration.
OK -- REPLACE POWER WINDOW REGULATOR SWITCH (REAR RH)
NG -- Continue to next step.
12. CHECK WIRE HARNESS (POWER WINDOW SWITCH - BODY ECU)




(a) Disconnect the B4 body ECU connector from the instrument panel J/B assembly.
(b) Check the continuity between the terminals of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)
13. CHECK POWER WINDOW LOCK SWITCH
(a) Turn the window lock switch OFF and check that the remote function operates.
OK -- END
NG -- Continue to next step.
14. INSPECT POWER WINDOW REGULATOR MASTER SWITCH (FOR WINDOW LOCK SWITCH)




(a) Remove the master switch (the connector is connected).
(b) Turn the ignition switch ON.
(c) Check the voltage between terminal 6 and the body ground when operating the window lock switch on the master switch.
Standard voltage:






NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (WINDOW REGULATOR MASTER SWITCH - EACH SWITCH)