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Knowledge Base

Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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BASIC POWER WINDOW SYSTEM INSPECTION [POWER WINDOW SYSTEM]

Manual Open/close Function Inspection

STEP	INSPECTION		ACTION
1	Switch the ignition ON (engine off or on). Operate the power window using the manual open/close function on the power window main switch. Does the power window operate properly?	Yes	Go to the next step.
		No	Inspect the power window main switch, power window motor and the wiring harness. (See POWER WINDOW MAIN SWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
2	Operate the power window using the manual open/close function on the power window sub switch. Does the power window operate properly?	Yes	Go to the next step.
		No	Inspect the power window sub switch and the wiring harness. (See POWER WINDOW SUBSWITCH INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.)
3	Turn the power-cut switch off (contact point: closed). Does the door glass other than driver’s door glass operate?	Yes	There is a malfunction in the power-cut switch. Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.)
		No	Manual open/close function is normal. Perform the auto open function inspection. (See Auto Open Function Inspection.)

Auto Open Function Inspection

Driver-side

STEP	INSPECTION		ACTION
1	Switch the ignition ON (engine off or on). Operate the power window using the auto open function on the power window main switch. Does the power window operate properly?	Yes	Go to the next step.
		No	If the power window automatically opens during the closing operation: Go to DOOR GLASS REVERSE OPENS DURING MANUAL-CLOSE OPERATION (MIS REVERSE OPEN) [POWER WINDOW SYSTEM]. (See DOOR GLASS REVERSE OPENS DURING MANUAL-CLOSE OPERATION (MIS REVERSE OPEN) [POWER WINDOW SYSTEM].) Others: Go to DRIVER-SIDE DOOR GLASS CAN BE OPERATED MANUALLY BUT CANNOT BE OPERATED AUTOMATICALLY [POWER WINDOW SYSTEM]. (See DRIVER-SIDE DOOR GLASS CAN BE OPERATED MANUALLY BUT CANNOT BE OPERATED AUTOMATICALLY [POWER WINDOW SYSTEM].)
2	Operate the power window main switch to the close position while the power window is opening. Does the power window operation stop?	Yes	Auto open function is normal. Perform the IG-OFF timer function inspection. (See IG-OFF Timer Function Inspection.)
		No	Inspect the power window main switch, power window motor and the wiring harness. (See POWER WINDOW MAIN SWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)

Passenger-side

STEP	INSPECTION		ACTION
1	Switch the ignition ON (engine off or on). Operate the power window using the auto open function on the power window sub switch. Does the power window operate properly?	Yes	Go to the next step.
		No	If the power window automatically opens during the closing operation: Go to DOOR GLASS REVERSE OPENS DURING MANUAL-CLOSE OPERATION (MIS REVERSE OPEN) [POWER WINDOW SYSTEM]. (See DOOR GLASS REVERSE OPENS DURING MANUAL-CLOSE OPERATION (MIS REVERSE OPEN) [POWER WINDOW SYSTEM].) Others: Go to PASSENGER-SIDE DOOR GLASS CAN BE OPERATED MANUALLY BUT CANNOT BE OPERATED AUTOMATICALLY [POWER WINDOW SYSTEM]. (See PASSENGER-SIDE DOOR GLASS CAN BE OPERATED MANUALLY BUT CANNOT BE OPERATED AUTOMATICALLY [POWER WINDOW SYSTEM].)
2	Operate the power window sub switch to the close position while the power window is opening. Does the power window operation stop?	Yes	Auto open function is normal. Perform the IG-OFF timer function inspection. (See IG-OFF Timer Function Inspection.)
		No	Inspect the power window sub switch, power window motor and the wiring harness. (See POWER WINDOW SUBSWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)

IG-OFF Timer Function Inspection

Driver-side

STEP	INSPECTION		ACTION
1	Switch the ignition from ON (engine off or on) to off. Operate the power window main switch within 40 s after switching the ignition to off. Does the power window operate?	Yes	Go to the next step.
		No	Inspect the power window main switch, power window motor and the wiring harness. (See POWER WINDOW MAIN SWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
2	Switch the ignition from ON (engine off or on) to off. Operate the power window main switch within 60 s after switching the ignition to off. Does the power window operate?	Yes	Inspect the power window main switch, power window motor and the wiring harness. (See POWER WINDOW MAIN SWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
		No	IG-OFF timer function operation is normal.

Passenger-side

STEP	INSPECTION		ACTION
1	Switch the ignition from ON (engine off or on) to off. Operate the power window sub switch within 40 s after switching the ignition to off. Does the power window operate?	Yes	Go to the next step.
		No	Inspect the power window sub switch, power window motor and the wiring harness. (See POWER WINDOW SUBSWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
2	Switch the ignition from ON (engine off or on) to off. Operate the power window sub switch within 60 s after switching the ignition to off. Does the power window operate?	Yes	Inspect the power window sub switch, power window motor and the wiring harness. (See POWER WINDOW SUBSWITCH INSPECTION.) (See POWER WINDOW MOTOR INSPECTION.) Repair or replace malfunctioning parts. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION.) (See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)
		No	IG-OFF timer function operation is normal.

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