Infiniti F50. Manual — part 711
2003 Q45 – Quick Reference – Electrical
3
2003 Q45 – VQ Engine
PREPARATION
Make sure that the following parts are in order.
1. Battery
2. Ignition system
3. Engine oil and coolant levels
4. Fuse
5. ECM harness connector
6. Vacuum hoses
7. Air intake system (Oil filler cap, oil level, etc.)
8. Fuel pressure
9. Engine compression
10. Throttle valve
11. Evaporative emission canister purge control valve.
Note:
•
On A/C equipped vehicles, turn A/C "Off" for testing.
•
Transmission should be in "Park" or "Neutral".
•
"CO" probe should be inserted into exhaust approximately 16 inches.
•
Turn off headlamps, heater blower, rear defogger, etc.
•
Front wheels pointed straight.
•
Perform inspection with cooling fans "Off".
2003 Q45 – Quick Reference – Electrical
4
2003 Q45 – A/T
RE5R05A
Trans Code
90x69
A/T Fluid Type
Nissan Matic 'J' ONLY (P/N 999MP-MTJ00P)
Oil Capacity
10 7/8 qt
A/T Cooler Type
Fin Type Structure
A/T Dipstick Tool #
J-45475
Up-Shift Schedule Range (at normal operating temp.) mph(km/h)
Half Throttle
Full Throttle
D
1
→
→
→
→
D
2
29 - 31 (22 - 26)
36 - 39 (64 - 68)
D
2
→
→
→
→
D
3
44 - 49 (59 - 67)
56 - 61 (95 - 103)
D
3
→
→
→
→
D
4
66 - 73 (100 - 110)
84 - 90 (147 - 157)
D
4
→
→
→
→
D
5
84 - 90 (153 - 163)
125 - 131 (219 - 229)
Complete Clutch Lock-Up mph(km/h)
Lock-up ON
Lock-up OFF
Closed Throttle
35 - 40 (71 - 79)
33 - 38 (53 - 61)
Half Throttle
104 - 109 (191 – 199)
81 - 86 (136 - 144)
Slip Lock-Up
mph(km/h)
Closed Throttle
Lock-up ON
Lock-up OFF
3
RD
Gear
23 - 28 (27 - 35)
21 - 26 (24 - 32)
4
th
Gear
23 - 28 (39 - 47)
21 - 26 (36 - 44)
5
th
Gear
27 - 32 (48 - 56)
25 - 30 (45 - 53)
Stall Rpm
R, D, 2, 1 position
2,300 - 2,600 rpm
Line Pressure psi(kg/cm
2
)
At Curb Idle
At Stall rpm
R - Position
57 - 64 (4.0 - 4.5)
247 - 274 (17.3 - 19.3)
D,M - Position
54 - 61 (3.8 - 4.3)
190 - 218 (13.3 - 15.3)
Solenoid Valves
Resistance
Pin Number
Line Pressure Sol. Valve
3 - 9
Ω
7
Torque Converter Clutch Sol. Valve
3 - 9
Ω
8
Input Clutch Sol. Valve
3 - 9
Ω
6
High & Low Rev. Clutch Sol. Valve
3 - 9
Ω
3
Front Brake Sol. Valve
3 - 9
Ω
5
Direct Clutch Sol. Valve
3 - 9
Ω
4
Low Coast Brake Sol. Valve
20 - 40
Ω
2
A/T Fluid Temp. Sensor
Condition
ATF Temp Sensor 1
ATF Temp Sensor 2
32
°
F (0
°
C)
2.2 V, 15 k
Ω
2.2 V, 10 k
Ω
68
°
F (20
°
C)
1.8 V, 6.5 k
Ω
1.7 V, 4 k
Ω
176
°
F (80
°
C)
0.6 V, 0.9 k
Ω
0.45 V, 0.5 k
Ω
Revolution Sensor
Test Condition: Use CONSULT-II pulse frequency measuring function.
Veh. Speed 12 mph in 1
st
gear, with closed throttle position switch "OFF".
Turbine Rev. Sensor 1 & 2
1.3 kHz
Rev Sensor
185 Hz
Mark Actual
To Confirm
Notes
2003 Q45 – Quick Reference – Electrical
5
2003 Q45 – A/T
PRECAUTIONS
•
Before performing any diagnostic test, vehicle should be driven for approximately 10 minutes
to raise transmission to the proper operating temperature of 122
°
to 176
°
.
•
During stall testing, never hold throttle wide open for more than 5 seconds at a time. Extended
stall testing can overheat transmission and cause serious damage.
•
Nissan
Matic 'J' ATF is the only fluid accepted for warranty, service contracts and goodwill
repairs.
•
Before performing any internal repairs, thoroughly clean the outside of the transmission case
to prevent contamination.
•
Use lint free cloth or towels for wiping parts. Common shop towels can leave contaminating
fibers on the transmission parts and cause improper transmission operation.
•
When servicing the valve body, valves, sleeves, plugs, etc. should slide along the bores in the
valve body under their own weight.
•
Before assembly, apply a coat of ATF to all internal transmission parts. Use petroleum jelly to
protect o-rings and seals, or to hold bearings and washers in place during assembly.
Important Note: Nissan Matic 'J' must be used in performing repairs paid by Infiniti for the 2002
and later Q45, such as warranty, service contract, or good-will repairs. There will not be
reimbursement for repairs when non-genuine Nissan Matic 'J' is used.
2003 Q45 – Quick Reference – Electrical
6
2003 Q45 – Htr & A/C
AIR CONDITIONER
Compressor
Make
Calsonic Kansei V-6
Type
Swash Plate (Variable Displacement)
Compressor Clutch
Disc-to-Pulley Clearance
0.012 - 0.024 in (0.3 - 0.6 mm)
Refrigerant
Type
HFC-134a (R134a)
Capacity
1.32 lb (.60 kg)
Refrigerant Oil
Type
Nissan Type "S" Lub.
Capacity
6.0 fl oz
Oil to AddPer
Evaporator
2.5 oz (75 ml)
Condenser
1.2 oz (35 ml)
*Liquid Tank
0.3 oz (10 ml)
Large Refrig. Leak
1.0 oz (30 ml)
Compressor
(*Add only if comp. is not replaced.)
Engine Idle w/A/C On
(in Neutral)
More than 700 rpm
Performance Test
Recirculating-to-Discharge Air Temp
Recirc. Air Temp. at
Discharge Air Temp. at
Blower Assy. Inlet
Center Ventilator
Relative Humidity
F
°°°°
(C
°°°°
)
F
°°°°
(C
°°°°
)
50 - 60 %
77
°
(25
°
)
48 - 52
°
(8.8 - 11.1
°
)
86
°
(30
°
)
54 - 59
°
(12.2 - 15.1
°
)
95
°
(35
°
)
62 - 68
°
(16.4 - 20.0
°
)
60 - 70 %
77
°
(25
°
)
52 - 56
°
(11.1 - 13.5
°
)
86
°
(30
°
)
59 - 64
°
(15.1 - 18.0
°
)
95
°
(35
°
)
68 - 74
°
(20.0 - 23.2
°
)
Ambient Air Temp-to-Operating Pressure
Air temperature
Relative Humidity 50-70%
F
°°°°
(C
°°°°
)
High-pres. Low-pres.
86
°
(30
°
)
197.2 - 240.7 psi
30.5 - 39.2 psi
95
°
(35
°
)
214.6 - 261.0 psi
36.3 - 46.4 psi
104
°
(40
°
)
275.5 - 301.6 psi
43.5 - 52.2 psi
Mark Actual
To Confirm
Notes
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