Power Window Control System (W/ Jam Protection Function) Auto Up / Down Function Does Not Operate
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK MANUAL UP / DOWN FUNCTION
CHECK LIGHT OF MASTER SWITCH
RESET POWER WINDOW REGULATOR MOTOR ASSEMBLY
CHECK WIRE HARNESS (MASTER SWITCH - MOTOR)
CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (PLS, PLS2 SIGNAL)
POWER WINDOW CONTROL SYSTEM (w/ Jam Protection Function) - Auto Up / Down Function does not Operate |
DESCRIPTION
If the AUTO UP / DOWN function does not operate, the cause may be one or more of the following:- The recorded power window fully closed position, which is stored in the power window regulator master switch, was erased as a result of: 1) the DOOR fuse, ECU-IG & GAUGE fuse or IG1 relay being replaced; or 2) the battery cable and the master switch's connector being disconnected.
- The master switch has a malfunction.
- The pulse sensors in the driver side power window regulator motor have a malfunction.
- The wiring between the master switch and the driver side power window regulator motor is open or short-circuited.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK MANUAL UP / DOWN FUNCTION |
Check that the manual UP / DOWN function operates normally.
- OK:
- Manual UP / DOWN function operates normally.
2.CHECK LIGHT OF MASTER SWITCH |
Turn the ignition switch ON.
Operate the master switch's driver side window switch for 2 seconds or more.
Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration.
ResultBlinking Pattern
| Proceed to
|
1 or 3
| A
|
2
| B
|
4
| C
|
| |
|
| REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY |
|
|
3.RESET POWER WINDOW REGULATOR MOTOR ASSEMBLY |
Check that the power window operates normally after reset (Toyota Fortuner RM000001DJB00GX.html).
- OK:
- Power window operates normally.
4.CHECK WIRE HARNESS (MASTER SWITCH - MOTOR) |
Disconnect the P6 master switch connector.
Disconnect the P7 motor connector.
Measure the resistance of the wire harness side connectors.
- Standard resistance:
Tester Connection
| Specified Condition
|
P6-3 (VCC) - P7-4 (SSRB)
| Below 1 Ω
|
P6-14 (PLS) - P7-5 (PLS)
| Below 1 Ω
|
P6-17 (PLS2) - P7-3 (PLS2)
| Below 1 Ω
|
P6-2 (GND) - P7-6 (E)
| Below 1 Ω
|
P6-3 (VCC) or P7-4 (SSRB) - Body ground
| 10 kΩ or higher
|
P6-14 (PLS) or P7-5 (PLS) - Body ground
| 10 kΩ or higher
|
P6-17 (PLS2) or P7-3 (PLS2) - Body ground
| 10 kΩ or higher
|
| REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
5.CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (PLS, PLS2 SIGNAL) |
Remove the power window regulator master switch assembly with its connectors still connected.
Using an oscilloscope, check the waveform.
- OK:
Tester Connection
| Condition
| Specified Condition
|
P6-14 (PLS) - Body ground
| Ignition switch ON, driver side power window switch OFF → UP or DOWN
| Pulse waveform is output
|
P6-17 (PLS2) - Body ground
|
| REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY |
|
|
OK |
|
|
|
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY |
|