Infiniti FX35, FX50 (S51). Manual — part 436
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PREPARATION
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< PREPARATION >
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D
E
F
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H
I
J
K
L
B
A
O
P
N
PREPARATION
PREPARATION
Special Service Tools
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Commercial Service Tools
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Tool number
(Kent-Moore No.)
Tool name
Description
—
(J-44373 Model MCR620)
Starting/Charging System Tester
Tests starting and charging systems.
For operating instructions, refer to Technical
Service Bulletin.
SEL403X
Tool name
Description
Power tool
Loosening bolts, nuts and screws
PIIB1407E
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< PERIODIC MAINTENANCE >
CHARGING SYSTEM PRELIMINARY INSPECTION
PERIODIC MAINTENANCE
CHARGING SYSTEM PRELIMINARY INSPECTION
Inspection Procedure
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1.
CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair battery terminals connection.
2.
CHECK FUSE
Check for blown fuse and fusible link.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Be sure to eliminate the cause of malfunction before installing new fuse.
3.
CHECK “E” TERMINAL CONNECTION
Check if “E” terminal (alternator ground harness) is clean and tight.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair “E” terminal connection.
4.
CHECK DRIVE BELT TENSION
Check drive belt tension.
• VQ35HR
.
• VK50VE
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair as needed.
Unit
Power source (Power supply terminals)
Fuse No.
Alternator
Battery (“S” terminal)
31
Combination meter
Ignition switch ON (“L” terminal)
4
CHG
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
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< PERIODIC MAINTENANCE >
C
D
E
F
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L
B
A
O
P
N
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION
Inspection Procedure
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CAUTION:
When performing this inspection, always use a charged battery that has completed the battery inspec-
tion. (When the charging rate of the battery is low, the response speed of the voltage change will
become slow. This can cause an incorrect inspection.)
1.
CHECK ECM (CONSULT-III)
Perform ECM self-diagnosis with CONSULT-III. Refer to the following.
• VQ35HR models:
EC-124, "CONSULT-III Function"
.
• VK50VE models:
EC-718, "CONSULT-III Function"
Self-diagnostic results content
No malfunction detected>> GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
2.
CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
1.
Connect CONSULT-III and start the engine.
2.
The selector lever is in “P” or “N” position and all of the electric loads and A/C, etc. are turned OFF.
3.
Select “ALTERNATOR DUTY” at “Active Test” of “ENGINE”, and then check the value of “BATTERY
VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.
4.
Check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to
80.0%.
Is the measurement value within the specification?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
CHECK IPDM E/R (CONSULT-III)
Perform IPDM E/R self-diagnosis with CONSULT-III. Refer to the following.
• VQ35HR models:
PCS-13, "CONSULT-III Function (IPDM E/R)"
• VK50VE models:
PCS-13, "CONSULT-III Function (IPDM E/R)"
.
Self-diagnostic results content
No malfunction detected>> GO TO 4.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
4.
CHECK HARNESS BETWEEN ALTERNATOR AND IPDM E/R
1.
Turn ignition switch OFF.
2.
Disconnect alternator connector and IPDM E/R connector.
3.
Check continuity between alternator harness connector and IPDM E/R harness connector.
“BATTERY VOLT”
2 seconds after setting the
DUTY value of “ALTERNA-
TOR DUTY” to 40.0 %
: 12 - 13.6 V
“BATTERY VOLT”
20 seconds after setting
the DUTY value of “ALTER-
NATOR DUTY” to 80.0 %
: +0.5 V or more against
the value of “BATTERY
VOLT” monitor when
DUTY value is 40.0 %
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< PERIODIC MAINTENANCE >
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
4.
Check continuity between alternator harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair harness or connector between IPDM E/R and alternator.
Alternator harness connector
IPDM E/R harness connector
Continuity
Connector
Terminal
Connector
Terminal
F36
4
E7
76
Existed
Alternator harness connector
Ground
Continuity
Connector
Terminal
F36
4
Not existed
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