POWER WINDOW MAIN SWITCH INSPECTION
2016 – MX-5 – Body and Accessories
POWER WINDOW MAIN SWITCH INSPECTION
NOTE:
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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 power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.)
3. Connect the power window main switch connector.
4. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
5. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).
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If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
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If the system does not work normally even though the inspection items are normal, replace the power window main switch.
Terminal Voltage Table (Reference)
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+ |
|
|
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+ |
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|
Other |
1.0 or less |
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|
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+ |
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|
Other |
1.0 or less |
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|
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 |
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|
1H |
Top lock switch signal |
Top lock switch |
Convertible top is close |
B+ |
Top lock switch |
|
Convertible top is open |
1.0 or less |
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|
1I |
??? |
??? |
??? |
??? |
??? |
|
1J |
Convertible top switch signal |
Convertible top switch |
Convertible top is close |
B+ |
Convertible top switch |
|
Convertible top is open |
1.0 or less |
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|
1K |
IG1 |
C/U IG1 15 A fuse |
Ignition is switched ON (engine off or on) |
B+ |
|
|
1L |
Serial communication |
Power window subswitch |
Terminal used for communication therefore determination based on terminal voltage is not possible. |
||
|
2D |
Hall effect switch No.1 |
Power window motor (driver’s side) |
Door glass (driver’s side) is operating |
Wave pattern (See Inspection Using an Oscilloscope (Reference)) |
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 |
Wave pattern (See Inspection Using an Oscilloscope (Reference)) |
Power window motor (driver’s side) |
|
2I |
??? |
??? |
??? |
??? |
??? |
|
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 |
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|
2M |
??? |
??? |
??? |
??? |
??? |
|
2N |
??? |
??? |
??? |
??? |
??? |
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 off |
B+ |
|
|
Ignition is switched off (LOCK) |
1.0 or less |
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|
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 |
??? |
??? |
??? |
??? |
??? |
|
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 |
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|
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)
-
Connection terminal:
2D (+) ??? body ground (-)
2F (+) ??? body ground (-)
-
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range