Home Vehicle Interior Meter/Gauge/Display METER / GAUGE SYSTEM
Last Modified: 11-27-2007 1.6 J
Service Category: Vehicle Interior Section: Meter/Gauge/Display
Model Year: 2008 Model: LX570 Doc ID: RM00000302W005X
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DESCRIPTION (2008 LX570)

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



INSPECTION PROCEDURE

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check for DTCs METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

Result

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

B

A

2.

PERFORM ACTIVE TEST USING TECHSTREAM (OIL PRESSURE SENSOR)

(a) Operate the Techstream according to the display and select the Active Test METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570) .

Combination Meter

Tester Display

Test Part

Control Range

Diagnostic Note

Oil Pressure Meter Operation

Oil pressure receiver gauge

LOW, 1/4, 1/2, 3/4 or HIGH

Perform the test with the vehicle stopped and the engine idling.

OK:

Needle indication is normal.

OK

3.

INSPECT OIL PRESSURE GAUGE ASSEMBLY (OIL PRESSURE SENSOR)


(a) Check that the needle moves in accordance with the engine speed.

OK:

Needle is as shown in illustration when engine is stopped.

Needle moves when engine is running.

OK

4.

CHECK HARNESS AND CONNECTOR (COMBINATION METER - OIL PRESSURE SENSOR)



(a) Disconnect the E77 meter connector.

(b) Disconnect the D6 gauge connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

E77-40 (S) - D6-1 (S)

Always

Below 1 Ω

E77-40 (S) or D6-1 (S) - Body ground

Always

10 kΩ or higher

OK