Toyota Sequoia (2005). Manual - part 859

I28551

A

B

C

D

E

F

G

–

BODY ELECTRICAL

POWER OUTLET

BE–21

3425

5.

INSPECT INSTRUMENT PANEL J/B (IPO) CIRCUIT

Disconnect the connector from the instrument panel J/B and in-
spect the connector on the wire harness side as shown in the
table below.

Tester connection

Condition

Specified condition

A–10 – Body ground

C–3 – Body ground

C–4 – Body ground

Always

10 to 14 V

BE–22

–

BODY ELECTRICAL

POWER OUTLET

3426

A–10 – Body ground

C–3 – Body ground

C–4 – Body ground

Ignition switch OFF for 2 hours 

→

 ON, or ignition

switch ON after disconnection and reconnection

of battery terminal cable.

10 to 14 V

B–6 – Body ground

Always

Below 1 V

D–1 – Body ground

Always

10 to 14 V

F–1 – Body ground

Ignition switch OFF 

→

 ON or ACC

Below 1 V 

→

 10 to 14 V

F–4 – Body ground

Ignition switch OFF 

→

 ON

Below 1 V 

→

 10 to 14 V

G–12 – Body ground

Always

Below 1 V

If the circuit is not as specified, inspect the circuit connected to
other parts.

BE0OP–20

I28401

Ignition Switch

Key Unlock Warning Switch

Instrument Panel J/B

 IG2 Fuse

–

BODY ELECTRICAL

IGNITION SWITCH AND KEY UNLOCK WARNING 
SWITCH

BE–23

3427

IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH

LOCATION

BE25S–04

I08467

LOCK

ACC

ON

START

N20125

1

2

OFF

ON

BE–24

–

BODY ELECTRICAL

IGNITION SWITCH AND KEY UNLOCK WARNING 
SWITCH

3428

INSPECTION

1.

INSPECT IGNITION SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

LOCK

–

No continuity

ACC

1 – 3

Continuity

ON

1 – 2 – 3

5 – 6

Continuity

START

1 – 2

4 – 5 – 6

Continuity

If continuity is not as specified, replace the switch.

2.

INSPECT KEY UNLOCK WARNING SWITCH CONTI-
NUITY

Switch position

Tester connection

Specified condition

OFF (Key removed)

–

No continuity

ON (Key set)

1 – 2

Continuity

If continuity is not as specified, replace the switch.