Toyota Sequoia (2005). Manual - part 465

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1655

1849

INSPECTION PROCEDURE

HINT:
Start the inspection from step 1 when using the hand–held tester and start from step 3 when not using the
hand–held tester.

1

Perform active test by hand–held tester.

PREPARATION:
(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch ON, and push the hand–held tester main switch ON.

CHECK:
From the display on the tester, perform the ”ACTIVE TEST”.
METER:

Item

Test Details

Diagnostic Note

OIL PRESS METER

HIGH, 3/4, 1/2, 1/4, LOW (OFF)

Confirm that the vehicle is stopped and engine is

idling.

OK:

Oil pressure receiver gauge readings change according to hand–held tester operation.

NG

Replace combination meter 
(See page 

IN–35

).

OK

I01278

DI–1656

–

DIAGNOSTICS

COMBINATION METER SYSTEM

1850

2

Read value of hand–held tester.

PREPARATION:
(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch ON, and push the hand–held tester main switch ON.

CHECK:
Operate the hand–held tester according to the steps on the display and select ”DATA LIST”.
METER:

Item

Measurement Item /

Range (Display)

Normal Condition

Diagnostic Note

OIL GAUGE

Oil Gauge /

Min.: 0 Max.: 255

Tester indication changes accord-

ing to the oil pressure receiver

gauge angle.

OK:

Oil pressure displayed on the tester is almost the same as the actual oil pressure.

OK

Replace combination meter.
(See page 

IN–35

)

NG

3

Inspect oil pressure sender gauge.

PREPARATION:
Disconnect the connector from the oil pressure sender.
CHECK:
(a)

Check that no continuity exists between the terminal and
ground with the engine stopped.

(b)

Check that continuity exists between the terminal and
ground with the engine running.

HINT:
Oil pressure should be over 24.5 kPa (0.25 kgf/cm

2

, 3.55 psi).

OK:

When engine is stopped:
No continuity
When engine is running:
Continuity

NG

Replace oil pressure sender gauge.

OK

I28569

Combination Meter:

C5–27

I28581

Oil Pressure Sender Gauge 
Wire Harness:

O2

–

DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1657

1851

4

Check harness and connector (Oil pressure sender gauge – combination meter).

PREPARATION:
Disconnect the C5 connector of the combination meter.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Specified Condition

C5–27 – O2–1

Below 1 

Ω

C5–27 – Body ground

10 k

Ω

 or higher

NG

Repair or replace harness or connector.

OK

Replace combination meter 
(See page 

IN–35

).

I28564

I18
Ignition SW

Instrument Panel J/B

Combination Meter

Engine Room J/B

F10
Fusible LB

Battery

IGN1

AM2

AM2

IG2

2D

2C

1

1

1C

1H

1C

1J

2

11

3

7

5

6

B–R

B–O

W–R

B

B

4

5

C6

24

W–R

DI–1658

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DIAGNOSTICS

COMBINATION METER SYSTEM

1852

Malfunction in volt meter

CIRCUIT DESCRIPTION

The voltmeter indicates the voltage applied to the IG terminal of the combination meter.

WIRING DIAGRAM

DID96–01