Toyota Sequoia (2005). Manual - part 464

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1651

1845

INSPECTION PROCEDURE

HINT:
Start the inspection from step 1 when using the hand–held tester and start from step 2 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

SEAT BELT BUZZR

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

D BELT REMIND

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

OK:

Switch condition (ON/OFF) can be switched by ACTIVE TEST.

NG

Replace combination meter
(See page 

IN–35

).

OK

I28578

w/o Power Seat:

B16

ON

OFF

I28579

w/ Power Seat:

B16

ON

OFF

DI–1652

–

DIAGNOSTICS

COMBINATION METER SYSTEM

1846

2

Inspect front seat inner belt (Driver side).

PREPARATION:
Disconnect the connector from the front seat inner belt assy
(Driver Side).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Terminal No.

Condition

Specified condition

(*1) B16–3 – B16–13

Seat belt is fastened

10 k

Ω

 or higher

(*1) B16–3 – B16–13

Seat belt is unfastened

Below 1 

Ω

(*2) B16–2 – B16–3

Seat belt is fastened

10 k

Ω

 or higher

(*2) B16–2 – B16–3

Seat belt is unfastened

Below 1 

Ω

*1: w/o Power Seat
*2: w/ Power Seat

NG

Replace front seat inner belt (Driver side).

OK

I28580

Front Seat Inner Belt:
(w/ Power Seat)

(w/o Power Seat)

B16

B16

I28569

Combination Meter:

C5–4

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1653

1847

3

Check harness and connector (Front seat inner belt – combination meter and
front seat inner belt – body ground).

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

C5–4 – B16–2 (*1)

Below 1 

Ω

C5–4 – B16–13 (*2)

Below 1 

Ω

B16–3 – Body ground

Below 1 

Ω

C5–4 – Body ground

10 k

Ω

 or higher

*1: w/ Power Seat
*2: w/o Power Seat

NG

Repair or replace harness or connector.

OK

Replace combination meter 
(See page 

IN–35

).

I28563

O2
Oil Pressure Sender

Combination Meter

Heat Wire

IG4

C5

1

L–B

16

27

L–B

DI–1654

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DIAGNOSTICS

COMBINATION METER SYSTEM

1848

Malfunction in oil pressure receiver gauge

CIRCUIT DESCRIPTION

The oil pressure sender detects the oil pressure generated by engine start.
The combination meter determines that the engine is on when the engine revolution is 400 rpm or more, and
determines that the engine is off when the engine revolution is 200 rpm or less.
The oil pressure receiver gauge detects and indicates the oil pressure applied to the oil pressure sender.

WIRING DIAGRAM

DID95–01