POWER WINDOW SUBSWITCH INSPECTION


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1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the power window subswitch. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.)

3.  Connect the power window subswitch connector.

4.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

5.  Measure the voltage at each terminal.

•  If the voltage is not as specified in the terminal voltage table, inspect the parts under “Inspection item(s)” and related wiring harnesses.
―  If the system does not work properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the power window subswitch. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.)


Terminal voltage table (reference)

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Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item (s)

A
Serial communication
Power window main switch
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible
•  Power window subswitch
•  Related wiring harness
C
Power supply
P.WIND2 25 A fuse
Under any condition
B+
•  P.WIND2 25 A fuse
•  Related wiring harness
D
Pulse 2
Power window motor
Door glass operating
Wave pattern
•  Power window motor
•  Related wiring harness
F
Pulse 1
Power window motor
Door glass operating
Wave pattern
•  Power window motor
•  Related wiring harness
H
Close output
Power window motor
Door glass closing
B+
•  Power window motor
•  Related wiring harness
while door glass is closing for approx. 40 s after ignition is switched OFF (LOCK) from ON
B+
Other
1.0 or less
I
Open output
Power window motor
Door glass opening
B+
•  Power window motor
•  Related wiring harness
while door glass is opening for approx. 40 s after ignition is switched OFF (LOCK) from ON
B+
Other
1.0 or less
J
Power supply
Power window motor
Switch the ignition to ACC or ON (engine off)
B+
•  Power window motor
•  Related wiring harness
Switch the ignition OFF (LOCK)
1.0 or less
K
GND
Body ground
Under any condition:
1.0 or less
•  Related wiring harness
L
Sensor ground
Power window motor
Under any condition:
1.0 or less
•  Power window motor
•  Related wiring harness


Inspection Using an Oscilloscope (Reference)

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•  Terminal:
D, F(+) ↔ ground (-)
•  Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range