Toyota Sequoia (2005). Manual - part 455

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1615

1809

Seat belt warning lamp for driver’s seat does not operate.

Refer to troubleshooting procedures

DI–1650

SLIP warning light does not come on.

1. SLIP warning light circuit

2. Wire harness and connector

3. Combination meter assy

4. Skid control ECU

DI–1041

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IN–35
IN–35

INDICATOR LIGHTS:

Symptom

Suspected Area

See page

Turn indicator light does not come on.

1. Turn signal flasher relay

2. Wire harness or connector

3. Combination meter assy

BE–36

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IN–35

High beam indicator light does not come on.

1. Headlight dimmer switch (*1)

Headlight dimmer switch circuit (*2)

2. Wire harness or connector

3. Combination meter assy

BE–27

DI–1755

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IN–35

Washer level indicator light does not come on.

1. Washer level warning switch

2. Wire harness or connector

3. Combination meter assy

BE–49

–

IN–35

Tire pressure indicator light does not come on.

1. Tire pressure monitor ECU

2. Wire harness or connector

3. Combination meter assy

DI–873

–

IN–35

CRUISE main indicator light does not come on.

1. CRUISE main indicator light circuit

2. Cruise main control switch circuit

3. Wire harness or connector

4. Combination meter assy

DI–1557
DI–1561

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IN–35

VSC OFF indicator light does not come on.

1. VSC OFF indicator light circuit

2. Combination meter assy

DI–1048

IN–35

VSC TRAC indicator light does not come on.

1. VSC TRAC indicator light circuit

2. Combination meter assy

DI–1027

IN–35

Security indicator light does not come on.

1. Security indicator light circuit

2. Combination meter assy

DI–1731

IN–35

4HI indicator light does not come on.

1. Wire harness and connector

2. Combination meter assy

3. 4WD control ECU

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IN–35
IN–35

4LO indicator light does not come on.

1. Wire harness and connector

2. Combination meter assy

3. 4WD control ECU

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IN–35
IN–35

CTR DIF LOCK indicator light does not come on.

1. Wire harness and connector

2. Combination meter assy

3. 4WD control ECU

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IN–35
IN–35

Height control indicator lamp does not come on.

1. Height control indicator lamp circuit

2. Combination meter assy

DI–785

IN–35

Height control manual indicator lamp does not come on.

1. Height control manual indicator lamp circuit

2. Combination meter assy

DI–789

IN–35

A/T indicator light does not come on.

1. Park/neutral position switch circuit

2. Wire harness and connector

3. Combination meter assy

DI–576

–

IN–35

*1: w/o Day time running light
*2: w/ Day time running light
OTHERS:

Symptom

Suspected Area

See page

All buzzers (key reminder, seat belt) do not operate.

Combination meter assy

IN–35

DID8V–01

I27709

C5

C6

DI–1616

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DIAGNOSTICS

COMBINATION METER SYSTEM

1810

TERMINALS OF ECU

COMBINATION METER ASSY

(a)

Disconnect the C5 and C6 connectors.

(b)

Measure the resistance of each terminal of the wire harness side connector.
Standard:

Terminals No.

Wiring Color

Terminal Description

Condition

Specified Condition

C5–5 – Body ground

L–W – Body

ground

Compass and garage

door opener

Always

Below 1 

Ω

C5–6 – Body ground

L–R – Body

ground

Compass and garage

door opener communica-

tion line

Always

Below 1 

Ω

C5–30 (*2) – Body ground

W – Body ground

Multiplex communication

signal

Always

Below 1 

Ω

C5–31 – Body ground

LG–R – Body

ground

Multiplex communication

signal

Always

Below 1 

Ω

C5–32 – Body ground

LG–B – Body

ground

Multiplex communication

signal

Always

Below 1 

Ω

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DIAGNOSTICS

COMBINATION METER SYSTEM

DI–1617

1811

(c)

Reconnect the C5 and C6 connectors.

(d)

Measure the voltage of each terminal of the wire harness side connector.
Standard:

Terminals No.

Wiring Color

Terminal Description

Condition

Specified Condition

C5–1 – Body ground

R–B – Body

ground

Parking brake signal

Parking brake warning light ON

6.7 to 12 V

C5–1 – Body ground

R–B – Body

ground

Parking brake signal

Parking brake warning light OFF

Below 1 V

C5–2 – Body ground

LG–R – Body

ground

CRUISE signal

CRUISE indicator light ON

Below 1 V

C5–2 – Body ground

LG–R – Body

ground

CRUISE signal

CRUISE indicator light OFF

10 to 14 V

C5–3 – Body ground

B – Body ground

Ignition switch signal

(Start)

Ignition switch OFF

Below 1 V

C5–3 – Body ground

B – Body ground

Ignition switch signal

(Start)

Ignition switch START

10 to 14 V

C5–4 – Body ground

G–Y – Body

ground

Seat belt condition signal

(Driver side)

D–BELT indicator light ON

Below 1 V

C5–4 – Body ground

G–Y – Body

ground

Seat belt condition signal

(Driver side)

D–BELT indicator light OFF

10 to 14 V

C5–13 – Body ground

LG–R – Body

ground

Washer level signal

WASH LVL indicator light ON

Below 1 V

C5–13 – Body ground

LG–R – Body

ground

Washer level signal

WASH LVL indicator light OFF

10 to 14 V

C5–14 – Body ground

L–O – Body

ground

O/D OFF indicator signal

O/D OFF indicator light ON

Below 1 V

C5–14 – Body ground

L–O – Body

ground

O/D OFF indicator signal

O/D OFF indicator light OFF

10 to 14 V

C5–15 (*1) – Body ground

Y–R – Body

ground

A/T oil temperature signal

A/T OIL TEMP. warning light ON

Below 1 V

C5–15 (*1) – Body ground

Y–R – Body

ground

A/T oil temperature signal

A/T OIL TEMP. warning light OFF

10 to 14 V

C5–16 – Body ground

LG–B – Body

ground

Security indicator light

signal (Engine immobilizer

system)

Security indicator light ON

10 to 14 V

C5–16 – Body ground

LG–B – Body

ground

Security indicator light

signal (Engine immobilizer

system)

Security indicator light OFF

Below 1 V

C5–17 – Body ground

GR – Body

ground

Security indicator light

signal (Theft deterrent

system)

Security indicator light ON

10 to 14 V

C5–17 – Body ground

GR – Body

ground

Security indicator light

signal (Theft deterrent

system)

Security indicator light OFF

Below 1 V

C5–18 – Body ground

V–W – Body

ground

CHECK ENGINE signal

CHECK ENGINE warning light ON

Below 1 V

C5–18 – Body ground

V–W – Body

ground

CHECK ENGINE signal

CHECK ENGINE warning light OFF

10 to 14 V

C5–19 – Body ground

G–B – Body

ground

A/T shift position signal

(L)

A/T L indicator OFF

Below 1 V

DI–1618

–

DIAGNOSTICS

COMBINATION METER SYSTEM

1812

C5–19 – Body ground

G–B – Body

ground

A/T shift position signal

(L)

A/T L indicator ON

10 to 14 V

C5–20 – Body ground

GR–L – Body

ground

Tire pressure signal

Tire pressure warning light ON

6.7 to 12 V

C5–20 – Body ground

GR–L – Body

ground

Tire pressure signal

Tire pressure warning light OFF

Below 1 V

C5–21 – Body ground

R – Body ground

Injector signal

Ignition switch ON

Pulse generation

C5–22 – Body ground

W–G – Body

ground

Illumination signal

Light control switch OFF

Below 1 V

C5–22 – Body ground

W–G – Body

ground

Illumination signal

Light control switch ON

10 to 14 V

C5–23 – Body ground

Y–G – Body

ground

Tachometer signal

Engine running

Pulse generation

(see waveform 1)

C5–24 – Body ground

Y – Body ground

Speed signal (Input)

Ignition switch ON and turn the

wheel slowly

10 to 14 V 

↔

 

Below 1 V

C5–25 – Body ground

G–O – Body

ground

Speed signal (Output)

Ignition switch ON and turn the

wheel slowly

Pulse generation 

(see waveform 2)

C5–26 – Body ground

V – Body ground

Power source for fuel

sender gauge

Ignition switch ON, fuel level is

FULL

Below 1 V

C5–26 – Body ground

V – Body ground

Power source for fuel

sender gauge

Ignition switch ON, fuel level is

EMPTY

4 to 7 V

C5–27 – Body ground

L–B – Body

ground

Oil pressure signal

Oil pressure warning light ON

Below 1 V

C5–27 – Body ground

L–B – Body

ground

Oil pressure signal

Oil pressure warning light OFF

10 to 14 V

C5–28 – Body ground

B–R – Body

ground

Injector power signal

Ignition switch ON

10 to 14 V

C5–29 – Body ground

B–Y – Body

ground

SRS warning light signal

SRS warning light ON

Below 1 V

C5–29 – Body ground

B–Y – Body

ground

SRS warning light signal

SRS warning light OFF

8 to 14 V

C5–33 – Body ground

G–Y – Body

ground

Turn signal (R)

Ignition switch ON, turn signal RH

indicator OFF

Below 1 V

C5–33 – Body ground

G–Y – Body

ground

Turn signal (R)

Ignition switch ON, turn signal RH

indicator ON

10 to 14 V

C5–34 – Body ground

L–Y – Body

ground

A/T shift position signal

(P)

A/T P indicator OFF

Below 1 V

C5–34 – Body ground

L–Y – Body

ground

A/T shift position signal

(P)

A/T P indicator ON

10 to 14 V

C5–35 – Body ground

B–Y – Body

ground

A/T shift position signal

(R)

A/T R indicator OFF

Below 1 V

C5–35 – Body ground

B–Y – Body

ground

A/T shift position signal

(R)

A/T R indicator ON

10 to 14 V

C5–36 – Body ground

G–R – Body

ground

A/T shift position signal

(N)

A/T N indicator OFF

Below 1 V

C5–36 – Body ground

G–R – Body

ground

A/T shift position signal

(N)

A/T N indicator ON

10 to 14 V

C5–37 – Body ground

W–R – Body

ground

A/T shift position signal

(D)

A/T D indicator OFF

Below 1 V