Infiniti Q45. Manual — part 345
PRECAUTIONS
EC-19
C
D
E
F
G
H
I
J
K
L
M
A
EC
●
After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.
●
When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
●
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
●
B1 indicates the bank 1 and B2 indicates the bank 2 as
shown in the figure.
SEF217U
SEF348N
PBIB1144E
EC-20
PRECAUTIONS
●
Do not operate fuel pump when there is no fuel in lines.
●
Tighten fuel hose clamps to the specified torque.
●
Do not depress accelerator pedal when starting.
●
Immediately after starting, do not rev up engine unneces-
sarily.
●
Do not rev up engine just prior to shutdown.
●
When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–
Keep the antenna as far as possible from the electronic
control units.
–
Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–
Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
–
Be sure to ground the radio to vehicle body.
PBIB2462E
SEF709Y
SEF708Y
PREPARATION
EC-21
C
D
E
F
G
H
I
J
K
L
M
A
EC
PREPARATION
PFP:00002
Special Service Tools
NBS001Q2
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
EG17650301
(J-33984-A)
Radiator cap tester
adapter
Adapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV10117100
(J-36471-A)
Heated oxygen
sensor wrench
Loosening or tightening heated oxygen sensor 2
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrench
Loosening or tightening air fuel ratio sensor 1
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kit
Checking fuel pressure
KV109E0010
(J-46209)
Break-out box
Measuring the ECM signals with a circuit tester
KV109E0080
(J-45819)
Y-cable adapter
Measuring the ECM signals with a circuit tester
S-NT564
S-NT379
S-NT636
LEC642
S-NT825
S-NT826
EC-22
PREPARATION
Commercial Service Tools
NBS001Q3
Tool name
(Kent-Moore No.)
Description
Leak detector
i.e.: (J-41416)
Locating the EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD)
Applying positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382)
Checking fuel tank vacuum relief valve opening
pressure
Socket wrench
Removing and installing engine coolant
temperature sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)
Reconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: J-43897-18 18 mm diameter with pitch 1.5
mm for Zirconia Oxygen Sensor
b: J-43897-12 12 mm diameter with pitch 1.25
mm for Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL
specification MIL-A-
907)
Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779
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