Toyota Tundra Service Manual: 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

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

B

Go to CAN COMMUNICATION SYSTEM

A

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

OK:

Needle indication is normal.

NG

REPLACE COMBINATION METER ASSEMBLY

OK

(a) Disconnect the E11 sender gauge connector.

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

(c) Check that the LED does not illuminate when the engine is stopped.

(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.

B

REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY

C

REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY

D

REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY

A

(a) Disconnect the J28 meter connector.

(b) Disconnect the E11 gauge connector.

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

Standard Resistance:

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR