POWER WINDOW MAIN SWITCH INSPECTION


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Note
•  The power outer mirror switch is built into the power window main switch.

1.  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

2.  Remove the driver-side door trim. (See DOOR TRIM REMOVAL/INSTALLATION.)

3.  Remove the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.)

4.  Connect the power window main switch connector.

5.  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

6.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
―  If the system does not work normally even though the inspection items are normal, replace the power window main switch.


Terminal Voltage Table (Reference)

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Power Window Main Switch

Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

1A
Ground
Body ground
Under any condition
1.0 or less
Body ground
1B
Power supply
P.WINDOW 30 A fuse
Under any condition
B+
•  P.WINDOW 30 A fuse
•  Battery
1C
Hall effect switch ground
Power window motor (driver's side)
Under any condition
1.0 or less
Power window motor (driver's side)
1D
Open signal
Power window motor (driver's side)
Door glass is performing open operation
B+
Power window motor (driver's side)
Door glass is performing open operation during approx. 40 s after ignition is switched from ON (engine off or on) to off
B+
Other
1.0 or less
1E
1F
Close signal
Power window motor (driver's side)
Door glass is performing close operation
B+
Power window motor (driver's side)
Door glass is performing close operation during approx. 40 s after ignition is switched from ON (engine off or on) to off
B+
Other
1.0 or less
1G
Hall effect switch power supply
Power window motor (driver's side)
Ignition is switched ON (engine off or on)
B+
Power window motor (driver's side)
Ignition is switched off (LOCK)
1.0 or less
1H
Top lock switch signal*1
Top lock switch
Convertible top is close
B+
Top lock switch
Convertible top is open
1.0 or less
Retractable hardtop control module signal*2
Retractable hardtop control module
Terminal used for communication therefore determination based on terminal voltage is not possible.
1I
1J
Convertible top switch signal*1
Convertible top switch
Convertible top is close
B+
Convertible top switch
Convertible top is open
1.0 or less
Retractable hardtop control module signal*2
Retractable hardtop control module
Terminal used for communication therefore determination based on terminal voltage is not possible.
1K
IG1
C/U IG1 15 A fuse
Ignition is switched ON (engine off or on)
B+
•  C/U IG1 15 A fuse
•  Battery
1L
Serial communication
Power window subswitch
Terminal used for communication therefore determination based on terminal voltage is not possible.
2A
ACC
MIRROR 7.5 A fuse
Ignition is switched ON (engine off or on) or ACC
B+
•  MIRROR 7.5 A fuse
•  Battery
Ignition is switched off (LOCK)
1.0 or less
2D
Hall effect switch No.1
Power window motor (driver's side)
Door glass (driver's side) is operating
Power window motor (driver's side)
2F
Hall effect switch No.2
Power window motor (driver's side)
Door glass (driver's side) is performing open operation
Power window motor (driver's side)
2K
2L
Door switch signal
Door latch and lock actuator (driver's side)
Door is close
B+
Door latch and lock actuator (driver's side)
Door is open
1.0 or less
2M
2N

*1  :Convertible top
*2  :Retractable hardtop

Power Outer Mirror Switch

Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

2A
ACC
MIRROR 7.5 A fuse
Ignition is switched ON (engine off or on) or ACC
B+
•  MIRROR 7.5 A fuse
•  Battery
Ignition is switched off (LOCK)
1.0 or less
2B
Power outer mirror right/down signal
Power outer mirror (LH)
Outer mirror glass (LH) is operating downward or to right direction
B+
Power outer mirror
Other
1.0 or less
2C
Power outer mirror right/down signal
Power outer mirror (RH)
Outer mirror glass (RH) is operating downward or to right direction
B+
Power outer mirror
Other
1.0 or less
2E
Ground
Body ground
Under any condition
1.0 or less
Body ground
2G
Power outer mirror left signal
Power outer mirror (LH)
Outer mirror glass (LH) is operating to left direction
B+
Power outer mirror
Other
1.0 or less
2H
Power outer mirror up signal
Power outer mirror (LH/RH)
Outer mirror glass (LH/RH) is operating upward
B+
Power outer mirror
Other
1.0 or less
2J
Power outer mirror left signal
Power outer mirror (RH)
Outer mirror glass (RH) is operating to left direction
B+
Power outer mirror
Other
1.0 or less


Inspection Using an Oscilloscope (Reference)

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