Toyota Sequoia (2005). Manual — part 700
SF1XP–01
B17510
–
SFI
ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
SF–55
2789
INSTALLATION
1.
INSTALL VSV FOR ACIS
(a)
Install the VSV to the intake manifold with the bolt.
Torque: 7.5 N·m (76 kgf·cm, 66 in.·lbf)
(b)
Connect the 2 vacuum hoses to the VSV.
2.
INSTALL INTAKE MANIFOLD ASSEMBLY
(See page
3.
INSTALL THROTTLE BODY COVER
SF1XQ–01
S04947
Continuity
Ohmmeter
Ohmmeter
No Continuity
1
2
3
5
S04946
Battery
Ohmmeter
Continuity
1
2
3
5
SF–56
–
SFI
EFI MAIN RELAY
2790
EFI MAIN RELAY
INSPECTION
1.
REMOVE RELAY BOX COVER
2.
REMOVE EFI MAIN RELAY (Marking: EFI)
3.
INSPECT EFI MAIN RELAY CONTINUITY
(a)
Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b)
Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
4.
INSPECT EFI MAIN RELAY OPERATION
(a)
Apply battery voltage across terminals 1 and 2.
(b)
Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
5.
REINSTALL EFI MAIN RELAY
6.
REINSTALL RELAY BOX COVER
SF1XR–01
S04947
Continuity
Ohmmeter
Ohmmeter
No Continuity
1
2
3
5
S04946
Battery
Ohmmeter
Continuity
1
2
3
5
–
SFI
A/F SENSOR HEATER RELAY
SF–57
2791
A/F SENSOR HEATER RELAY
INSPECTION
1.
REMOVE RELAY BOX COVER
2.
REMOVE A/F SENSOR HEATER RELAY (Marking: A/F
HTR)
3.
INSPECT A/F SENSOR HEATER RELAY CONTINUITY
(a)
Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b)
Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
4.
INSPECT A/F SENSOR HEATER RELAY OPERATION
(a)
Apply battery voltage across terminals 1 and 2.
(b)
Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
5.
REINSTALL A/F SENSOR HEATER RELAY
6.
REINSTALL RELAY BOX COVER
SF1XS–01
S04947
Continuity
2
1
No Continuity
Ohmmeter
Ohmmeter
3
5
S04946
Continuity
Ohmmeter
Battery
2
1
3
5
SF–58
–
SFI
CIRCUIT OPENING RELAY
2792
CIRCUIT OPENING RELAY
INSPECTION
1.
REMOVE RELAY BOX COVER
2.
REMOVE CIRCUIT OPENING RELAY
(Marking: C/O)
3.
INSPECT CIRCUIT OPENING RELAY CONTINUITY
(a)
Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b)
Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
4.
INSPECT CIRCUIT OPENING RELAY OPERATION
(a)
Apply battery positive voltage across terminals 1 and 2.
(b)
Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
5.
REINSTALL CIRCUIT OPENING RELAY
6.
REINSTALL RELAY BOX COVER
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