Toyota Prius: Oil Pressure Switch

Toyota Prius (XW60) 2023-2025 Service Manual / Engine/Hybrid System / 2zr-fxe (lubrication) / Oil Pressure Switch

Removal

REMOVAL

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	NO. 1 ENGINE UNDER COVER ASSEMBLY	51410	-	-	-
2	ENGINE OIL PRESSURE SWITCH ASSEMBLY	83530		-	-

★

Precoated part

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

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2. REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY

(1) Disconnect the engine oil pressure switch assembly connector.

(2) Using a 24 mm deep socket wrench, remove the engine oil pressure switch assembly.

NOTICE:

If the engine oil pressure switch assembly is dropped or subjected to a strong impact, replace it with a new one.

Inspection

INSPECTION

PROCEDURE

1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY

Pre-procedure1

CAUTION:

To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fans when working in the engine compartment with the engine running or the ignition switch on (IG).
To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

(a) Disconnect the engine oil pressure switch assembly connector.

(b) Put the engine in inspection mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

Procedure1

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition	Result
1 - Switch body	Idling	10 kΩ or higher	kΩ
1 - Switch body	Engine stopped	Below 1 Ω	Ω

If the result is not as specified, replace the engine oil pressure switch assembly.

Post-procedure1

(e) Connect the engine oil pressure switch assembly connector.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	ENGINE OIL PRESSURE SWITCH ASSEMBLY	83530		-	-
2	INSPECT FOR ENGINE OIL LEAK	-	-	-
3	CHECK ENGINE OIL LEVEL	-	-	-
4	NO. 1 ENGINE UNDER COVER ASSEMBLY	51410	-	-	-

	Nm (kgfcm, ft.*lbf): Specified torque		Adhesive 1344
★	Precoated part	-	-

PROCEDURE

1. INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY

*a	Oil Inlet Port	*b	3 Threads or More
	Adhesive Application Area	-	-

(1) Apply adhesive to the area shown in the illustration.

Adhesive:

Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent

NOTICE:

Do not apply adhesive to the oil inlet port of the engine oil pressure switch assembly.
Apply the adhesive to the first 3 threads or more of the engine oil pressure switch assembly.
Apply adhesive to the entire circumference of the thread.

(2) Using a 24 mm deep socket wrench, install the engine oil pressure switch assembly.

Torque:

15 N·m {153 kgf·cm, 11 ft·lbf}

NOTICE:

If the engine oil pressure switch assembly is dropped or subjected to a strong impact, replace it with a new one.
Do not start the engine within 1 hour of installation.

(3) Connect the engine oil pressure switch assembly connector.

2. INSPECT FOR ENGINE OIL LEAK

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