Front Power Window Motor Inspection: Driver-side

Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the power window main switch. (Refer to POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
Remove the front door trim. (Driver-side) (Refer to 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: Front Power Window Motor Circuit Diagram

Courtesy of MAZDA MOTORS CORP.

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

Connect the battery positive voltage to front power window motor terminal A and connect terminal D to ground.
Operate the front power window motor and verify the wave patterns for terminals B and C.

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