Toyota Sequoia (2005). Manual - part 461

I28461

ECM:

E5

TACH

I28569

C5–23

Combination Meter:

–

DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1639

1833

4

Check harness and connector (ECM – combination meter).

PREPARATION:
(a)

Disconnect the C5 connector of the combination meter.

(b)

Disconnect the E5 connector of the ECM.

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection (Symbol)

Specified Condition

C5–23 – E5–1 (TACH)

Below 1 

Ω

C5–23 – Body ground

10 k

Ω

 or higher

NG

Repair or replace harness or connector.

OK

Replace ECM (See page 

IN–35

).

I28560

F19
Fuel Sender

Combination Meter

C6

C5

12

26

11

C6

BB1

J8
J/C

IE

J49

J48

BB1

1F

1D

9

6

BR

W–B

Y–B

Y–B

Y–B

V

V

V

1

4

2

3

A

G

J/C

A

G

A

J49

J48

DI–1640

–

DIAGNOSTICS

COMBINATION METER SYSTEM

1834

Malfunction in fuel receiver gauge

CIRCUIT DESCRIPTION

The fuel sender has a variable resistance mechanism. The resistance decreases when the fuel amount in-
creases, and the resistance increases when the fuel amount decreases.
The fuel receiver gauge changes based on the resistance of the fuel sender.

WIRING DIAGRAM

DID91–01

–

DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1641

1835

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

FUEL GAUGE

EMPTY, 1/2, FULL

Confirm that the vehicle is stopped and engine is

idling.

OK:

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

NG

Replace combination meter
(See page 

IN–24

).

OK

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

FUEL GAUGE

Fuel Input /

Min.: 0 Max.: 255

Tester indication changes accord-

ing to the fuel receiver gauge

angle.

OK:

Fuel value signal displayed on the tester is almost the same as the needle indication.

NG

Replace combination meter
(See page 

IN–24

).

OK

I28574

F

Float

E

3

2

1

DI–1642

–

DIAGNOSTICS

COMBINATION METER SYSTEM

1836

3

Inspect fuel receiver gauge.

PREPARATION:
Remove the fuel sender gauge assy.
CHECK:
(a)

Measure the resistance between terminals 2 and 3 of the
connector according to the value(s) in the table below.

OK:

Float level

Specified condition

F

3 to 5 

Ω

E

107.5 to 112.5 

Ω

NG

Replace fuel sender gauge.

OK