Infiniti F50. Manual — part 713
2003 Q45 – Quick Reference – Electrical
11
2003 Q45 – Brakes
PRECAUTIONS
1. Never reuse drained brake fluid.
2. Be careful not to splash brake fluid on painted surfaces.
3. Use clean brake fluid to clean or wash master cylinder wheel cylinders, and disc brake calipers
parts.
4. Mineral oils such as gasoline and kerosene should not be used. They can cause damage to
rubber parts of the hydraulic system.
5. Use flare nut wrench when removing or installing brake line fittings.
6. Always torque brake lines.
7. Always replace brake pad shims when replacing brake pads.
Warning:
Clean brake pads and shoes with a dust collector to minimize the hazard of airborne particles
or other materials.
2003 Q45 – Quick Reference – Electrical
12
2003 Q45 – Electrical
ELECTRICAL
Wire Color Code
B = Black
BR = Brown
W = White
OR = Orange
R = Red
P = Pink
G = Green
PU = Purple
L = Blue
GY = Gray
Y = Yellow
SB = Sky Blue
LG = Light Green
CH = Dark Brown
DG = Dark Green
When a wire color is striped, the base color is given first, followed
by the stripe color. Example L/W = Blue with white stripe
Battery specification:
Type
80D23L
Capacity
12 V / 52 AH
Cold cranking current
582 A
Load test at 3
×
AH for 15 seconds.
Battery charging rates
:
Amps
Time
50
1 hour
25
2 hours
10
5 hours
5
10 hours
Do not charge battery over 50 ampere rate.
Do not "quick charge" a fully discharged battery.
If battery electrolyte temperature rises above 140
°
F, stop charging.
Starter:
Type
M2T85171
Mitsubishi
Gear reduction type
No-load current
Less than 145 A
No-load RPM
More than 3,300
Alternator:
Type
A3TG0391
Hitachi
Nominal Rating
12 V / 110 A
Output current A/RPM
More Than 31 /1,300
(with 13.5 V applied)
More Than 90 / 2,500
More Than 102 / 5,000
Regulated Output Voltage 14.1 - 14.7
2003 Q45 – Quick Reference – Electrical
13
Oil Pressure Switch:
Oil pressure PSI
Engine Running
More Than 2.8 - 4.26
NO
Less Than 2.8 - 4.26
YES
Bulb Specifications:
Item
Wattage (12V).
Headlamp Low
35 (D2S xenon)
High
55W (H1)
Front Turn Signal/Park
27 (amber)
Rear Turn Signal
21
Stop/Tail Lamp
21/5
Center Stop Lamp
18
Back-up Lamp
18
License Plate Lamp
5
Front MAP Lamp
8
Rear Personal Lamp
8
Vanity Mirror Lamp
1.4
Console Lamp
1.4
Step Lamp
2.7
Trunk Room Lamp
3.4
How to perform voltage drop test: See Illustrations
2003 Q45 – Quick Reference – Electrical
14
2003 Q45 – Electrical
BATTERY CONDITION
Battery Sulphation:
A battery will be completely discharged if it is left unattended for a long time and the specific gravity
becomes less than 1.100. This may result in sulphation on the cell plates. To determine if a battery
has been sulfated, note its voltage and current when charging. If low current and higher voltage are
observed in the initial stages of charging a sulfated battery is likely. A sulfated battery may
sometimes be brought back into service by means of a long slow charge, 12 hours or more.
Checking Battery Specific Gravity With Hydrometer
Hydrometer temperature correction
Battery electrolyte temp.
°°°°
C (
°°°°
F)
Add to specific gravity reading
71 (160)
0.032
66 (150)
0.028
60 (140)
0.024
54 (129)
0.020
49 (120)
0.016
43 (110)
0.012
38 (100)
0.008
32 (90)
0.004
27 (80)
0
21 (70)
−
0.004
16 (60)
−
0.008
10 (50)
−
0.012
4 (39)
−
0.016
−
1 (30)
−
0.020
−
7 (20)
−
0.024
−
12 (10)
−
0.028
−
18 (0)
−
0.032
Corrected specific gravity
Approximate charge condition
1.260 - 1.280
Fully charged
1.230 - 1.250
3/4 charged
1.200 - 1.220
1/2 charged
1.170 - 1.190
1/4 charged
1.140 - 1.160
Almost discharged
•
Do not quick charge a fully discharged battery.
•
After charging, if the specific gravity of any two cells varies more then .050, the battery should be
replaced.
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