POWER WINDOW MOTOR INSPECTION
2016 – MX-5 – Body and Accessories
POWER WINDOW MOTOR INSPECTION
Driver-side
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the door trim. (Driver-side) (See DOOR TRIM REMOVAL/INSTALLATION.)
3. Disconnect the power window motor connector.
4. Apply battery positive voltage and connect the ground to power window motor terminals G and A, and then inspect the power window motor operation.
|
B+ Terminal |
Ground Terminal |
Operation |
|
G |
A |
Close |
|
A |
G |
Open |
-
If the power window motor does not operate as indicated in the table, replace it. (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
5. Connect the battery positive voltage to power window motor terminal D and connect terminal H to ground.
6. Operate the power window motor and verify the wave patterns for terminals B and F.
-
Terminal:
B(+), F(+) ↔ ground (-)
-
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range
-
If the malfunction, replace the power window motor. (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
Passenger-side
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the door trim. (Passenger-side) (See DOOR TRIM REMOVAL/INSTALLATION.)
3. Disconnect the power window motor connector.
4. Apply battery positive voltage and connect the ground to power window motor terminals G and A, and then inspect the power window motor operation.
|
B+ Terminal |
Ground Terminal |
Operation |
|
G |
A |
Close |
|
A |
G |
Open |
-
If the power window motor does not operate as indicated in the table, replace it. (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
5. Connect the battery positive voltage to power window motor terminal D and connect terminal H to ground.
6. Operate the power window motor and verify the wave patterns for terminals B and F.
-
Terminal:
B(+), F(+) ↔ ground (-)
-
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range
-
If the malfunction, replace the power window motor. (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)