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HOMESERVICE MANUALSMAZDA20103 MAZDASPEED, 2.3 4REPAIR AND DIAGNOSISBODY & FRAMEWINDOWSSYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEM]NO. 2 THE DRIVER'S SIDE POWER WINDOW IS INOPERATIVE [POWER WINDOW SYSTEM]DIAGNOSTIC PROCEDURE
2010 Mazda 3 Mazdaspeed, 2.3 4

Diagnostic procedure

2010 Mazda 3 Mazdaspeed, 2.3 4SECTION Diagnostic procedure
DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Switch the ignition to ON.
  • Does the LED on the power window main switch illuminate?
 Yes Go to Step 6.
No Go to the next step.
2
  • Operate all power windows other than the driver's side window using the power window main switch.
  • Does the power window operate properly?
 Yes Go to the next step.
No Inspect for an open or short circuit in the following wiring harnesses. Inspect the connector connections (damage/pulled-out pins, corrosion):
  • P.WIND 30 A fuse-Power window main switch terminal 1M
  • Power window main switch terminal 1B-ground.

Repair or replace if necessary.
3
  • Is the P.WIND 30 A fuse normal?
 Yes Go to Step 5.
No Inspect the following:
  • Short circuit in B+ power supply wiring harness
  • Short circuit in power window motor

Repair or replace if necessary.
Replace with the appropriate standard fuse.
Then, go to the next step.
4
  • Initialize the power window system.
  • Operate the power window system.
  • Do the power windows operate properly?
 Yes Troubleshooting is completed.
No Re-confirm the symptom and go to Step 1.
5
  • Measure the voltage at the power window main switch terminal 1M.
  • Is the voltage B+?
 Yes Replace the power window main switch.
(See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
No Inspect for an open or short circuit in the power window main switch wiring harness (battery power supply).
Inspect the power window main switch connector connection, (damage/pulled-out pins, corrosion)
Repair or replace if necessary.
6
  • Measure the voltage at the power window main switch, (power window motor output terminal) while operating the power window using the power window main switch.
  • Is the voltage B+?

    (Open: terminal 1L/close: terminal U)

 Yes Go to the next step.
No Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
7
  • Measure the voltage at the power window motor, (battery power supply terminal) while operating the power window using the power window motor.
  • Is the voltage B+?

    (Open: terminal F/close: terminal E)

 Yes Go to the next step.
No Inspect for an open or short circuit in the wiring harness between the power window main switch and the power window motor.
Inspect the power window main switch and power window motor connector connections, (damage/pulled-out pins, corrosion)
Repair or replace if necessary.
8
  • Operate the driver's side power window using the power window main switch.
  • Does the power window motor operate (rotate)?
    CAUTION:
    • If the power window motor temperature is high, the motor may not rotate due to the motor internal bimetal function. Leave it untouched for about 3 min to cool it down, then reinspect.
 Yes Go to the next step.
No Replace the power window motor. (See POWER WINDOW MOTOR REMOVAL/INSTALLATION .)
9
  • Remove the door glass from the carrier plate.
  • Make sure that the door glass moves smoothly using your hand.
  • Does the door glass move smoothly?
 Yes Replace the power window regulator. (See FRONT POWER WINDOW REGULATOR REMOVAL/INSTALLATION .) (See REAR POWER WINDOW REGULATOR REMOVAL/INSTALLATION .)
No Inspect for a bent regulator guide or other possible malfunction. If normal, replace the door glass run-channel.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.