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2016 – MX-5 – Body and Accessories

POWER WINDOW CONTROL MODULE/POWER OUTER MIRROR CONTROL MODULE

Purpose

• The power window control module controls the power window system based on the following information.

• Power window main switch operation signal

• Power window subswitch operation signal

• Pulse from power window motor

• The power window control module performs control of the door interlock open/close based on the switch ON/OFF signal from the door latch switch.

• The power window control module performs control of the convertible-top interlock open based on the convertible-top open/close signal from the convertible top switch and top lock switch.

• The power outer mirror control module controls the power outer mirror system based on the power window main switch operation signal.

Function

• When the power window control module receives the following signals, it turns on/off the open/close relay.

• Power window main switch operation signal

• Power window subswitch operation signal

• Switch ON/OFF signal from door latch switch

• When the power window control module receives the following signals, the open relay turns on/off.

• Convertible-top open signal

• Convertible-top close signal

• The power window control module detects the power window motor operation status based on the pulse from the power window motor.

• The power outer mirror control module operates left-right and up-down motors for the power outer mirror based on the power window main switch operation signal.

Construction

• The power window control module is built into the power window main switch and power window subswitch.

• The power outer mirror control module is built into the power window main switch.

Operation

Power window control module

• The power window control module detects the motor rotation speed and rotation direction based on pulse 1 and 2 from the power window motor.

  

• When all of the following conditions are met, the power window control module turns the open relay or close relay for the power window motor on/off.

When door is opened

• Door glass is placed at position less than 6.5 mm {0.6 in} from fully-closed position

• Recording of door glass fully-closed position is completed

• ON signal is received from door latch switch

When door is closed

• Door interlock open open/close function is operating

• OFF signal is received from door latch switch

• When all of the following conditions are met, the power window control module turns the open relay for the power window motor on/off.

When convertible-top is opened

• Door glass is placed at position less than 140 mm {5.51 in} from fully-closed position

• Recording of door glass fully-closed position is completed

• Convertible-top open signal is received from top lock switch

When convertible-top is closed

• Door glass is placed at position less than 140 mm {5.51 in} from fully-closed position

• Recording of door glass fully-closed position is completed

• Convertible-top close signal is received from convertible-top switch

Power outer mirror control module

• For the power outer mirror control module operation, refer to the [POWER OUTER MIRROR SYSTEM]. (See POWER OUTER MIRROR SYSTEM.)

Fail-safe

• When the power window control module detects a pulse (Hall effect switch) error, it switches the power window system to fail-safe mode to prevent incorrect operation.

Malfunction condition	Ignition is switched ON (engine off or on)	Ignition is switched off	Recovery condition
Power window control module detected pulse 1 error (for pinching and door glass position detection) stop malfunction During close or open operation, pulse 2 cannot be detected while pulse 1 is detected	Driver’s side Auto operation is prohibited (Manual operation is enabled) Operation of front passenger’s side power window main switch is prohibited Passenger’s side Auto operation is prohibited (Manual operation is enabled)	Auto and manual operations are prohibited	Pulse signals 1 and 2 are received normally during close operation, and lowering amount detected when window is fully closed and during automatic reverse operation
Power window control module detected pulse 2 error (for door glass direction detection) stop malfunction During close or open operation, pulse 2 cannot be detected while pulse 1 is detected
Power window control module detected pulse signal error (inversion of pulse 1 and pulse 2 input signals or large phase deviation between pulses 1 and 2) Difference detected between the direction detected by the signals of pulses 1 and 2, and the actual direction during close or open operation
Power window control module detected pulse 1 error (Non-return range lowering) During close operation, pulse 1 signal from the power window motor detected more than set times even after the window reached the fully-closed position recorded by the power window control module.
Power window control module detected pulse 1 and 2 stop malfunction Pulse signals 1 and 2 are not detected for 1 s after the open operation is started from the fully closed position

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