Toyota Tundra Service Manual: Oil Pressure Gauge Malfunction

Toyota Tundra Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / Oil Pressure Gauge Malfunction

DESCRIPTION

The oil pressure sender detects the oil pressure generated when the engine is started. The combination meter determines that the engine is running when the engine speed is 400 rpm or more, and determines that the engine is cranking when the engine speed is 200 rpm or less. The oil pressure receiver gauge detects and indicates the oil pressure applied to the oil pressure sender.

WIRING DIAGRAM

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output (See page ).

Result

Result	Proceed to
CAN communication system DTC is not output	A
CAN communication system DTC is output	B

Go to CAN COMMUNICATION SYSTEM

2.	PERFORM ACTIVE TEST USING TECHSTREAM (OIL PRESSURE RECEIVER GAUGE)

(a) Operate the Techstream according to the display and select "Active Test" (See page ).

Combination Meter:

Tester Display	Test Part	Control Range	Diagnostic Note
Oil Pressure Meter Operation	Oil pressure receiver gauge	OFF, LOW, 1/4, 1/2, 3/4 or HIGH	Perform the test with the vehicle stopped and engine idling

OK:

Needle indication is normal.

REPLACE COMBINATION METER ASSEMBLY

3.	INSPECT OIL PRESSURE SENDER GAUGE

(a) Disconnect the E11 sender gauge connector.

(b) Apply battery positive (+) voltage to the sender gauge terminal through a test LED.

(d) Check that the LED flashes when the engine is running. The number of flashes varies with engine speed.

OK:

LED flashes when engine is running.

LED does not illuminate when engine is stopped.

Result

Result	Proceed to
LED operates correctly according to engine condition	A
LED does not operate correctly according to engine condition (for 1UR-FE)	B
LED does not operate correctly according to engine condition (for 3UR-FE)	C
LED does not operate correctly according to engine condition (for 3UR-FBE)	D

REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY

4.	CHECK HARNESS AND CONNECTOR (COMBINATION METER - OIL PRESSURE SENDER GAUGE)

(a) Disconnect the J28 meter connector.

(b) Disconnect the E11 gauge connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J28-27 (S) - E11-1	Always	Below 1 Ω
J28-27 (S) or E11-1 - Body ground	Always	10 kΩ or higher

REPLACE COMBINATION METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

How To Proceed With Troubleshooting

Operation Check

See More:

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