Toyota Sequoia (2005). Manual - part 458

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1627

1821

ACTIVE TEST
Performing the ACTIVE TEST using the hand–held tester allows the meters, indicators and so on to operate
without part removal. Performing the ACTIVE TEST as the first step of troubleshooting is one way to shorten
labor time.
It is possible to display the DATA LIST on the hand–held tester during the ACTIVE TEST.
(a)

Connect the hand–held tester to the DLC3.

(b)

Turn the ignition switch to the ON position.

(c)

From the display on the tester, perform the ”ACTIVE TEST”.

METER:

Item

Test Details

Diagnostic Note

SPEED METER

Operate speedometer: 0 / 40 (24) / 80 (48) / 120

(72) / 160 (96) / 

200 (120) km/h (mph)

The needle position should be within the accept-

able tolerance

TACHOMETER

Operate tachometer:

 0 rpm / 1,000 rpm / 2,000 rpm / 3,000 rpm /

4,000 rpm / 5,000 rpm / 6,000 rpm / 7,000 rpm

Confirm that the vehicle is stopped and engine is

idling.

FUEL GAUGE

Operate fuel gauge: EMPTY, 1/2, FULL

Confirm that the vehicle is stopped and engine is

idling.

COOLANT TEMP

Operate engine coolant temperature receiver

gauge: HIGH / NORMAL / LOW (OFF)

Confirm that the vehicle is stopped and engine is

idling.

D BELT REMIND

Operate driver’s seat belt warning light: 

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

OPEN DOOR WARN

Operate open door warning light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

LOW FUEL WARN

Operate fuel level warning light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

TAILLIGHT INDIC

Operate taillight indicator light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

HEADLIGHT INDIC

Operate Hi–beam indicator light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

SRS WARN

Operate SRS warning light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

ODO/TRIP DISP

Operate ODO/TRIP display: OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

KEY REMND BUZZR

Operate key reminder buzzer: OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

SEAT BELT BUZZR

Operate driver’s seat belt warning buzzer:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

MAINT REQD

Operate oil maintenance indicator light:

OFF / ON

Confirm that the vehicle is stopped and engine is

idling.

VOLT METER

Operate volt meter: 9 V / 12 V / 15 V / 18V

Confirm that the vehicle is stopped and engine is

idling.

OIL PRESS METER

Operate oil pressure meter: HIGH, 3/4, 1/2, 1/4,

LOW (OFF)

Confirm that the vehicle is stopped and engine is

idling.

DID8Y–01

DI–1628

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DIAGNOSTICS

COMBINATION METER SYSTEM

1822

CIRCUIT INSPECTION

Entire combination meter does not operate

CIRCUIT DESCRIPTION

This is the power source circuit of the combination meter.
The combination meter uses BEAN to determine that the ignition switch is in the ACC position or not.
The ST terminal (C5–3) is used as an auxiliary power source to prevent voltage drop when the ignition switch
is ON. When the ST terminal circuit is open or shorted, the combination meter illumination may flicker when
cranking the engine.

I28557

I18
Ignition SW

Instrument Panel J/B

Combination Meter

Engine Room J/B

Sub J/B No. 4

IE

Battery

J8
J/C

IA5

F10
Fusible
Link Block

C6

C5

C6

C6

C5

1F

1J

1C

1D

1H

1C

1C

1D

1D

1J

1J

2C

2D

2

2

2C

4B

4A

AM2

IG2

ST2

(*1) (*2)

W–B

W–R

B–R

B–W

BR

B–O

W–R

B–R

W–R

W–R

B–R

B–R

B

A

B

B

B

B

8

9

3

9

8

2

1

1

1

4

5

Short Pin ECU–B

AM2

STA

4

5

8

2

11

9

3

7

6

5

3

3

9

6

IGN1

IGN2

12

23

24

28

Engine Room R/B

*1: Head (USA)
*2: Tail (CANADA)

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1629

1823

WIRING DIAGRAM

DI–1630

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DIAGNOSTICS

COMBINATION METER SYSTEM

1824

INSPECTION PROCEDURE

1

Check fuse.

CHECK:
Measure the resistance of the IGN2 fuse and IGN1 fuse in the instrument panel J/B.
OK:

Below 1 

Ω

CHECK:
Measure the resistance of the STA fuse in the engine room R/B.
OK:

Below 1 

Ω

CHECK:
Measure the resistance of the ECU–B fuse and AM2 fuse in the engine room R/B.
OK:

Below 1 

Ω

NG

Inspect for short circuit in harness and all com-
ponents connected to fuse.

OK