Nissan Altima L32. Instruction — part 237
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-69
< FUNCTION DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
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Component Parts Location
INFOID:0000000004349161
1.
Intake valve timing control solenoid
valve
2.
Ignition coil (with power transistor)
and spark plug
3.
Knock sensor,
Crankshaft position sensor (POS)
4.
Air fuel ratio (A/F) sensor 1
5.
Camshaft position sensor (PHASE)
6.
Engine coolant temperature sensor
7.
Park/neutral position (PNP) switch
8.
ECM
9.
Refrigerant pressure sensor
10. Battery current sensor
11. IPDM E/R
12. Mass air flow sensor (with intake
temperature sensor)
13. Tumble control valve actuator
14. EVAP service port
15. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
16. EVAP canister purge volume control
solenoid valve
17. Fuel injector
18. Power steering pressure sensor
ALBIA0046ZZ
EC-70
< FUNCTION DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
1.
Battery
2.
Fuel pump fuse (15A)
3.
IPDM E/R
4.
Brake master cylinder
5.
Engine ground
6.
Air cleaner assembly
7.
Mass air flow sensor (with intake air
temperature sensor)
8.
Radiator hose (upper)
9.
Engine coolant temperature sensor
10. Intake air duct
11. Camshaft position sensor (PHASE)
12. Tie rod (RH)
13. Power steering pressure sensor
14. Knock sensor
15. Engine oil cooler
16. Crankshaft position sensor (POS)
17. Drive shaft (RH)
: Vehicle front
ALBIA0091ZZ
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-71
< FUNCTION DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
C
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A
EC
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JMBIA0118GB
1.
Exhaust manifold cover
2.
Air fuel ratio (A/F) sensor 1
3.
Heated oxygen sensor 2
(This illustration is a view from under
vehicle.)
4.
Engine oil pan
: Vehicle front
ALBIA0068ZZ
EC-72
< FUNCTION DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
1.
EVAP service port
2.
Intake air duct
3.
EVAP canister purge volume control so-
lenoid valve
4.
Intake manifold collector
5.
Park/neutral position (PNP) switch (CVT)
(This illustration is view with air cleaner
assembly removed.)
6.
Park/neutral position (PNP) switch (M/T)
(This illustration is view with air cleaner
assembly removed.)
7.
Intake valve timing control
solenoid valve
(This illustration is view with
engine removed.)
8.
Exhaust manifold cover
9.
Air fuel ratio (A/F) sensor 1
10. Air fuel ratio (A/F) sensor 1
harness connector
11. Heated oxygen sensor 2
(This illustration is view from under vehi-
cle.)
12. Heated oxygen sensor 2 harness con-
nector
(This illustration is view from under vehi-
cle.)
13. Engine oil pan
14. Heated oxygen sensor 3
(This illustration is view form under vehi-
cle.)
15. Heated oxygen sensor 3 harness con-
nector
(This illustration is view from under vehi-
cle.)
: Vehicle front
ALBIA0092ZZ
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