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
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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
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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
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