Mazda CX-5 Service & Repair Manual: Oil Pressure Switch [Fw6 A EL, Fw6 Ax EL]

Mazda CX-5 Service & Repair Manual / Engine / Lubrication / Oil Pressure Switch [Fw6 A EL, Fw6 Ax EL]

Purpose/Function

The oil pressure switch detects the engagement pressures of the low clutch, 2-6 brake, R-3-5 brake, and the high clutch.
The oil pressure switch signal is used for automatic shift control, manual shift control, TCC control, line pressure control, direct electric shift control, and the on-board diagnostic system.

Construction

The oil pressure switch contacts the oil passages of the low clutch, 2-6 brake, R-3-5 brake, and the high clutch and is installed to the control valve body.
The oil pressure switch is an on/off type switch.

Relation of oil pressure switch and engagement pressure detection targets


Oil pressure switch		Clutch/brake
Oil pressure switch A	Oil pressure switch No.2	2-6 brake
Oil pressure switch A	Oil pressure switch No.3	R-3-5 brake
Oil pressure switch B	Oil pressure switch No.1	Low clutch
Oil pressure switch B	Oil pressure switch No.4	High clutch

Operation

When engagement pressure is supplied to the applicable clutch and brake, the oil pressure switch contact point closes.
The TCM detects that clutch engagement pressure is supplied to the applicable clutch/brake by opening/closing the oil pressure switch contact point.

X: Contact point is closed


Oil pressure switch	1GR	2GR	3GR	4GR	5GR	6GR
Oil pressure switch No.1	X	X	X	X
Oil pressure switch No.2		X				X
Oil pressure switch No.3			X		X
Oil pressure switch No.4				X	X	X

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