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Diagnostic Procedure

ALL POWER WINDOWS INOPERATIVE DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	Switch the ignition ON (engine off or on). Set the power cut-off switch to the UNLOCK (contact point: Close) position. Inspect the power window system operation again. Does the system operate properly?	Yes	System is now normal, (power cut-off switch is not set properly.)
1		No	Go to the next step.
2	Operate all power windows other than driver's window using the power window main switch. Does any power window operate?	Yes	Go to Step 6.
2		No	Go to the next step.
3	Operate the driver's power window using the power window main switch. Does the power window operate?	Yes	Go to the next step.
3		No	Inspect for an open circuit in the wiring harness between the power window main switch and the body ground. Inspect the power window main switch connector connection, (damage/pulled-out pins, corrosion) Repair or replace if necessary.
4	Is the P.WINDOW1 30 A fuse normal?	Yes	Replace with the appropriate standard fuse. If the fuse is melted, inspect the wiring harness for a short to ground. Repair or replace the wiring harness, then replace the fuse.
4	Is the P.WINDOW1 30 A fuse normal?	No	Go to the next step.
5	Measure the voltage at the power window main switch terminal 1L. Is the voltage B+?	Yes	Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
5		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	Identify the inoperative power window. Measure the voltage at the suspect power window motor (battery power supply) while operating the power window motor using the suspect power window subswitch. Is the voltage B+? (Open: terminal F/close: terminal E)	Yes	Go to the next step.
6		No	Go to Step 9.
7	Operate the power window using the power window subswitch. 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.
7		No	Replace the power window motor. (See POWER WINDOW MOTOR REMOVAL/INSTALLATION .)

ALL POWER WINDOWS ARE INOPERATIVE - POWER WINDOW SYSTEMS (WITH AUTO-OPEN/CLOSE FUNCTION FOR DRIVER-SIDE) DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
5	Inspect glass run channel and door glass sliding surface. Visually inspect the sliding surface of the glass run channel and door glass. Is there soiling, foreign matter, or roughness on the sliding surface of the glass run channel and door glass?	Yes	Soiling on the sliding surface of the glass run channel and door glass: Clean the glass run channel and door glass. Object is caught between glass run channel and door glass: Remove the object. Roughness on the sliding surface (rubber surface): Replace the glass run channel. After performing one of the above actions, reinspect. If the malfunction is not corrected, go to Step 3.
5		No	Go to the next step.
6	Inspect tightening of door glass to carrier plate. Is it normal?	Yes	Go to the next step.
6		No	After tightening correctly, reinspect. If the malfunction is not corrected, go to Step 3.
7	Inspect condition of glass run channel and door glass. Is it normal?	Yes	Go to the next step.
7		No	Assemble the glass run channel and door glass securely, and reinspect. If the malfunction is not corrected, go to Step 3.
8	Inspect door glass closing speed. Does the door glass hesitate at any location?	Yes	Repeat the inspection from Step 3.
8		No	Troubleshooting completed.

Fig 1: Inspecting Glass Run Channel

G09787367

Courtesy of MAZDA MOTORS CORP.