Infiniti G37 Coupe. Manual — part 331
CHG-24
< ON-VEHICLE MAINTENANCE >
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair harness or connector between IPDM E/R and alternator.
Alternator harness connector
Ground
Continuity
Connector
Terminal
F36
4
Not existed
CHG
ALTERNATOR
CHG-25
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
ON-VEHICLE REPAIR
ALTERNATOR
Exploded View
INFOID:0000000001666067
REMOVAL
DISASSEMBLY
Type: A3TJ1991
1.
“B” terminal nut
2.
“B” terminal harness
3.
Alternator connector
4.
Alternator mounting bolt
5.
Alternator stay mounting bolt
6.
Alternator stay
7.
Alternator
: Engine front
Refer to
JPMIA0495GB
CHG-26
< ON-VEHICLE REPAIR >
ALTERNATOR
Removal and Installation
INFOID:0000000001666068
REMOVAL
1.
Disconnect the battery cable from the negative terminal.
2.
Remove engine front undercover, using power tools.
3.
Remove radiator cooling fan assembly. Refer to
.
4.
Remove drive belt. Refer to
EM-12, "Removal and Installation"
.
5.
Disconnect alternator connector (1).
6.
Remove “B” terminal nut (2).
7.
Remove the harness bracket bolts (A).
1.
Rear bearing
2.
Rotor assembly
3.
Retainer
4.
Front bearing
5.
Front bracket assembly
6.
Pulley
7.
Pulley nut
8.
Stator assembly
9.
IC voltage regulator assembly
10. Diode assembly
11.
Rear bracket assembly
12. Terminal set
13. “B” terminal nut
Refer to
for symbols in the figure.
JSMIA0007GB
SKIB2605J
CHG
ALTERNATOR
CHG-27
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
8.
Remove oil pressure switch harness clip (C) from alternator stay
(1).
9.
Disconnect oil pressure switch connector (D) and oil tempera-
ture sensor connector (E).
10. Remove alternator mounting bolt (B) and alternator stay mount-
ing bolt (F) using power tools, then remove alternator stay.
11. Remove alternator mounting bolt (A), using power tools.
12. Remove alternator assembly downward from the vehicle.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
• Install alternator, and check tension of belt. Refer to
.
• For this model, the power generation voltage variable control system that controls the power generation volt-
age of the alternator has been adopted. Therefore, the power generation voltage variable control system
operation inspection should be performed after replacing the alternator, and then make sure that the system
operates normally. Refer to
CHG-23, "Inspection Procedure"
.
Inspection
INFOID:0000000001666069
ALTERNATOR PULLEY INSPECTION
Perform the following.
• Make sure that alternator pulley does not rattle.
• Make sure that alternator pulley nut is tight. Refer to
JSMIA0012ZZ
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