Toyota Sequoia (2005). Manual — part 465
–
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
).
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
)
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
).
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
–
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
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