POWER WINDOW SUBSWITCH INSPECTION
2016 – MX-5 – Body and Accessories
POWER WINDOW SUBSWITCH INSPECTION
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE 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 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 subswitch.
Terminal Voltage Table (Reference)
Power Window Main Switch
|
Terminal |
Signal name |
Connected to |
Measurement condition |
Voltage (V) |
Inspection item(s) |
|
A |
Serial communication |
Power window main switch |
Terminal used for communication therefore determination based on terminal voltage is not possible. |
||
|
B |
— |
— |
— |
— |
— |
|
C |
Power supply |
P.WINDOW 30 A fuse |
Under any condition |
B+ |
|
|
D |
Hall effect switch No.1 |
Power window motor (passenger’s side) |
Door glass (passenger’s side) is operating |
Wave pattern (See Inspection Using an Oscilloscope (Reference)) |
Power window motor (passenger’s side) |
|
E |
Hall effect switch No.2 |
Power window motor (passenger’s side) |
Door glass (passenger’s side) is performing open operation |
Wave pattern (See Inspection Using an Oscilloscope (Reference)) |
Power window motor (passenger’s side) |
|
F |
Door switch signal |
Door latch and lock actuator (passenger’s side) |
Door is close |
B+ |
Door latch and lock actuator (passenger’s side) |
|
Door is open |
1.0 or less |
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|
G |
— |
— |
— |
— |
— |
|
H |
Close signal |
Power window motor (passenger’s side) |
Door glass is performing close operation |
B+ |
Power window motor (passenger’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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|
I |
Open signal |
Power window motor (passenger’s side) |
Door glass is performing open operation |
B+ |
Power window motor (passenger’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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|
J |
Hall effect switch power supply |
Power window motor (passenger’s side) |
Ignition is switched ON (engine off or on) |
B+ |
Power window motor (passenger’s side) |
|
Ignition is switched off (LOCK) |
1.0 or less |
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|
K |
Ground |
Body ground |
Under any condition |
1.0 or less |
Body ground |
|
L |
Hall effect switch ground |
Power window motor (passenger’s side) |
Under any condition |
1.0 or less |
Power window motor (passenger’s side) |
Inspection Using an Oscilloscope (Reference)
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Connection terminal:
D (+) ↔ body ground (-)
E (+) ↔ body ground (-)
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Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range