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

   Fig 1: Applying Battery Positive Voltage Into Power Window Motor Connector Terminals

   Courtesy of MAZDA MOTORS CORP.
   • 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.

Fig 2: Power Window Motor Voltage Characteristics

Courtesy of MAZDA MOTORS CORP.

• 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 ).