Nissan Pathfinder (2006 year). Manual — part 373
CHARGING SYSTEM
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2006 Pathfinder
Wiring Diagram — CHARGE —
EKS00FTP
WKWA4249E
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CHARGING SYSTEM
2006 Pathfinder
Trouble Diagnoses with Battery/Starting/Charging System Tester
EKS00FTQ
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be done
as a set from start to finish.
Before starting, perform the preliminary inspection. Refer to
SC-25, "PRELIMINARY INSPECTION"
1.
Stop the operation of the power generation variable voltage control system using either of the following
procedures.
●
Using the CONSULT-II set the "ALT DUTY" to 0%. Keep "ALT DUTY" at 0% until the end of the inspec-
tion. When the "ALT DUTY" value is 0% or 100%, normal power generation is performed according to
the characteristic of the IC regulator in the generator.
●
Turn the ignition switch off, and disconnect the battery current sensor connector. Disconnecting the bat-
tery current sensor may cause DTC (P1550 - P1554) to set. After finishing the inspection, connect the
battery current sensor connector and erase the self-diagnostic results history of the engine using CON-
SULT-II.
2.
Turn off all loads on the vehicle electrical system.
3.
Perform battery and starting system test with Battery/Starting/
Charging system tester.
4.
Press “ENTER” to begin the charging system test.
5.
Start engine.
6.
Press “ENTER” until “LOADS OFF REV ENGINE 5 SEC” is dis-
played.
7.
Raise and hold the engine speed at 1,500 to 2,000 rpm for about
5 seconds, then return the engine to idle.
Once the increase in engine rpm is detected, press “ENTER” to
continue.
NOTE:
●
If after 30 seconds an increase in engine idle speed is not
detected, “RPM NOT DETECTED” will display.
●
Some engines may have a higher idle initially after starting,
particularly when the engine is cold. The tester may detect
this without any other action being taken. If this occurs, con-
tinue on with the testing process. The final results will not be affected.
8.
The tester now checks the engine at idle and performs the
DIODE/RIPPLE check.
9.
When complete, the tester will prompt you to turn on the follow-
ing electrical loads.
●
Heater fan set to highest speed. Do not run the A/C or wind-
shield defroster.
●
Head lamp high beam
●
Rear window defogger
NOTE:
Do not run the windshield wipers or any other cyclical loads.
SEL417X
SEL418X
SEL419X
CHARGING SYSTEM
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2006 Pathfinder
10. Press “ENTER” to continue.
11. Raise and hold the engine speed at 1,500 to 2,000 rpm for about
5 seconds, then return the engine to idle. Once the increase in
engine rpm is detected, press “ENTER” to continue.
NOTE:
If after 30 seconds an increase in engine idle speed is not
detected, “RPM NOT DETECTED” will be displayed. Press
“ENTER” to restart the test.
12. Diagnostic result is displayed on the tester. Refer to
"DIAGNOSTIC RESULT ITEM CHART"
13. Press “ENTER” then test output code is displayed. Record the
test output code on the repair order.
14. Toggle back to the “DIAGNOSTIC SCREEN” for test results.
DIAGNOSTIC RESULT ITEM CHART
SEL420X
SEL421X
SEL422X
SEL577X
Diagnostic item
Service procedure
CHARGING SYSTEM NORMAL
Charging system is normal and will also show DIODE RIPPLE test result.
NO CHARGING VOLTAGE
LOW CHARGING VOLTAGE
HIGH CHARGING VOLTAGE
DIODE RIPPLE NORMAL
Diode ripple is OK and will also show CHARGING VOLTAGE test result.
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CHARGING SYSTEM
2006 Pathfinder
WORK FLOW
EXCESS RIPPLE DETECTED
Replace the generator. Refer to
SC-30, "Removal and Installation"
. Perform “DIODE RIP-
PLE” test again using Battery/Starting/Charging system tester to confirm repair.
DIODE RIPPLE NOT DETECTED
Go to
Diagnostic item
Service procedure
WKIA3717E
CHARGING SYSTEM
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2006 Pathfinder
PRELIMINARY INSPECTION
1.
CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair battery terminal connections.
2.
CHECK FUSE AND FUSIBLE LINK
Check for blown fuses and fusible link. Refer to
PG-84, "FUSE AND FUSIBLE LINK BOX"
OK or NG
OK
>> GO TO 3.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
3.
CHECK GENERATOR DRIVE BELT TENSION
Check generator drive belt tension. Refer to
OK or NG
OK
>> Inspection End.
NG
>> Repair as needed.
DIAGNOSTIC PROCEDURE 1
Check Charge Warning Lamp Circuit (Open)
1.
CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION
1.
Turn the ignition switch OFF.
2.
Check terminal "2" harness connector.
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal "2" connection. Confirm repair by performing complete Battery/Starting/Charging
system test. Refer to
SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"
*1
SC-25, "DIAGNOSTIC PROCE-
DURE 1"
*2
SC-28, "DIAGNOSTIC PROCE-
DURE 4"
*3
SC-26, "DIAGNOSTIC PROCE-
DURE 2"
*4
SC-28, "DIAGNOSTIC PROCE-
DURE 4"
*5
SC-31, "GENERATOR PULLEY
INSPECTION"
Unit
Power source (Power supply terminals)
Fuse or fusible link
Generator
Battery (“1” terminal)
a
Battery (“3” terminal)
30
Combination meter
Ignition switch ON (“2” terminal)
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CHARGING SYSTEM
2006 Pathfinder
2.
CHECK CHARGE WARNING LAMP CIRCUIT (OPEN)
1.
Disconnect E205 connector from generator.
2.
Apply ground to connector E205 terminal 2 with the ignition
switch in the ON position.
OK or NG
OK
>> GO TO
NG
>> Check the following.
●
Charge warning lamp (Combination meter)
●
Harness for open or short between combination
meter and fuse
●
Harness for open between combination meter and
generator
DIAGNOSTIC PROCEDURE 2
Check Charge Warning Lamp Circuit (Short)
1.
CHECK CHARGE WARNING LAMP CIRCUIT (SHORT)
1.
Turn the ignition switch OFF.
2.
Disconnect generator connector E205.
3.
Turn ignition switch ON.
Does charge warning lamp light up?
YES
>> Check the following.
●
Harness for short between combination meter and generator
●
Charge warning lamp (Combination meter)
NO
>> GO TO
CHARGE lamp should light up.
WKIA3184E
CHARGING SYSTEM
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2006 Pathfinder
DIAGNOSTIC PROCEDURE 3
Check Voltage Regulator Circuit
1.
CHECK VOLTAGE REGULATOR CIRCUIT CONNECTION
1.
Turn the ignition switch OFF.
2.
Check terminal "3" harness connector.
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal "3" connection. Confirm repair by performing complete Battery/Starting/Charging
system test. Refer to
SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"
2.
CHECK GENERATOR VOLTAGE REGULATOR CIRCUIT
Check voltage between generator connector E205 terminal 3 and
ground using a digital circuit tester.
OK or NG
OK
>> GO TO
NG
>> Check harness for open between generator and fuse.
Battery voltage should exist.
WKIA3186E
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CHARGING SYSTEM
2006 Pathfinder
DIAGNOSTIC PROCEDURE 4
Check Battery Circuit
1.
CHECK BATTERY CIRCUIT CONNECTION
1.
Turn the ignition switch OFF.
2.
Check to see if terminal "1" is clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal "1" connection. Confirm repair by performing complete Battery/Starting/Charging
system test. Refer to
SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"
2.
CHECK BATTERY CIRCUIT
Check voltage between generator connector E206 terminal 1 and
ground using a digital circuit tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open between generator and fusible
link.
3.
CHECK VOLTAGE DROP ON BATTERY CIRCUIT
1.
Start engine.
2.
While engine is running at idle and warm, check voltage
between generator connector E206 terminal 1 and battery posi-
tive terminal using a digital circuit tester.
OK or NG
OK
>>
.
NG
>> Check harness between the battery and the generator
for poor continuity.
Battery voltage should exist.
WKIA2111E
With engine running
at idle and warm.
: Less than 0.2V
WKIA3185E
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