Front Power Window Motor Inspection: Driver-side

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
Remove the front door trim. (Driver-side) (See FRONT DOOR TRIM REMOVAL/INSTALLATION .)
Disconnect the front power window motor connector.

Apply battery positive voltage and connect the ground to front power window motor terminals E and F, and then inspect the front power window motor operation.

B+ Terminal	Ground Terminal	Operation
E	F	Close
F	E	Open

Fig 1: Connecting Ground To Front Power Window Motor Terminals E And F And Connector End View

Courtesy of MAZDA MOTORS CORP.

If the front power window motor does not operate as indicated in the table, replace it. (See FRONT POWER WINDOW MOTOR REMOVAL/INSTALLATION .)

Connect the front power window motor connector.
Connect the power window main switch connector. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Operate the front power window motor and verify the wave patterns for terminals B and C.

Fig 2: Wave Pattern For Terminal A And B Of Front Power Window Motor
Courtesy of MAZDA MOTORS CORP.
- Terminal: B(+), C(+) ↔ ground (-)
- Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range
- If the malfunction, replace the front power window motor. (See FRONT POWER WINDOW MOTOR REMOVAL/INSTALLATION .)