Toyota Sequoia (2005). Manual - part 857

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BODY ELECTRICAL

TROUBLESHOOTING

BE–13

3417

BACK DOOR POWER WINDOW CONTROL SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.

Symptom

Suspect Area

See page

Back door power window does not operate.

1. Back Door Power Window Motor Circuit

2. Window Pulse Sensor Circuit

3. Rear Wiper Motor Circuit

4. Back Door Control Light Switch Circuit

5. Back Door ECU

6. Body ECU

IN–35

DI–1877

DI–1880

DI–1864

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TRAILER TOWING

Symptom

Suspect Area

See page

Trailer towing does not operate.

1. TOWING Fuse

2. TOWING TAIL Fuse

3. TOWING BRK Fuse

4. TOWING TAIL Relay

5. BATT CHARGE Relay

6. Towing Converter Relay

7. Brake Controller

8. Wire Harness

BE–14

BE–14

BE–14

BE–148

BE–148

BE–148

BE–148

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BE2DG–03

I28397

Engine Room R/B No. 2

Engine Room J/B

 FL Block

Instrument Panel J/B

Driver Side R/B

Engine Room R/B No. 3

FL Block:

A

B

B

A

B

Engine Room R/B 
No. 4

NOTICE:

When removing the FL block, pinch ”A” using pliers and pull it out.
Since ”B” is easy to damage, do not pinch with pliers.

BE–14

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BODY ELECTRICAL

POWER SOURCE

3418

POWER SOURCE

LOCATION

I28398

Fuses:

Relays:

1. *1 H–LP LL
2. *1 H–LP RL

3. STA
4. *1 H–LP LH
5. *1 H–LP RH

A

G

F

E

D

B

C

6

10

3 4 5

A. AIR SUS Relay
B. CDS FAN Relay
C. MG CLT Relay
D. A/F Relay
E. *1 DRL No. 4 Relay
F. DIMMER Relay

G. ST Relay

*1 w/ Daytime Running Light

Engine Room R/B No. 2

7
8

9

11

12

6. AIR SUS No. 2
7. RSE

8. A/F
9. SECURITY

10. DEF I/UP
11.      –
12.      –

1 2

10 A
10 A

7.5 A

10 A
10 A
10 A

7.5 A

20 A
15 A

7.5 A

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BODY ELECTRICAL

POWER SOURCE

BE–15

3419

I18638

A. Taillight Relay

Instrument Panel J/B:

Relays:

B. Back–Up Light Relay
C. ACC Relay
D. Power Main Relay
E. Fog Light Relay
F. MIRROR HEATER Relay
G. FLASHER Relay
H. SEAT HEATER Relay

Fuses:

1. TAIL Fuse
2. PWR No. 4 Fuse
3. PANEL Fuse
4. ECU–IG Fuse

1

2

3

4

5

6

7

8

9

10

11

12

13

14

A

B

C

D

E

G

H

F

15

16

17

18

19

20

21

22

23

24

25

26

5. CIG Fuse
6. PWR No. 1 Fuse
7. HTR Fuse
8. WSH Fuse
9. RAD No. 2 Fuse

10. WIP Fuse
11. FOG Fuse
12. AC INV Fuse         15 A
13. 4WD Fuse

14. IGN1 Fuse
15. GAUGE Fuse
16. IGN 2 Fuse
17. STOP Fuse
18. SUN ROOF Fuse
19. PWR OUTLET Fuse
20. PWR No. 3 Fuse
21. OBD Fuse
22. PWR No. 2 Fuse
23. SEAT HTR Fuse
24. PWR SEAT Fuse
25. AM1 Fuse
26. PWR No. 5 Fuse

15 A

10 A

20 A

7.5 A
10 A

15 A
25 A
10 A
25 A

7.5 A

25 A

15 A

20 A

15 A

20 A
15 A

25 A

15 A
20 A

7.5 A

25 A

15 A

30 A
40 A

30 A

BE–16

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BODY ELECTRICAL

POWER SOURCE

3420