Infiniti I30 (A33). Manual — part 583
Wiring Diagram — CHARGE —
NHSC0010
MEL758M
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
Wiring Diagram — CHARGE —
SC-21
Trouble Diagnoses with
Battery/Starting/Charging System Tester
NHSC0020
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter
and alternator test segments must be done as a set from start to
finish.
SEL417X
1.
Turn off all loads on the vehicle electrical system.
2.
Perform battery and starting system test with Battery/Starting/
Charging system tester.
3.
Press “ENTER” to begin the charging system test.
4.
Start engine.
SEL418X
5.
Press “ENTER” until “LOADS OFF REV ENGINE 5 SEC” is
displayed.
6.
Raise and hold the engine speed at 1,500 to 2,000 rpm for
about 5 seconds, then return to the engine to idle.
Once the increase in engine rpm is detected, press “ENTER”
to continue.
NOTE:
I
If after 30 seconds an increase in engine idle speed is not
detected, “RPM NOT DETECTED” will display.
I
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, continue on
with the testing process. The final results will not be affected.
SEL419X
7.
The tester now checks the engine at idle and performs the
DIODE/RIPPLE check.
8.
When complete, the tester will prompt you to turn on the fol-
lowing electrical loads.
I
Heater fun set to highest. Do not run the A/C or windshield
defroster.
I
Headlamp high beam
I
Rear window defogger
NOTE:
Do not run the windshield wipers or any other cyclical loads.
CHARGING SYSTEM
Trouble Diagnoses with Battery/Starting/Charging System Tester
SC-22
SEL420X
9.
Press “ENTER” to continue.
SEL421X
10. 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 con-
tinue.
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.
SEL422X
11. Diagnostic result is displayed on the tester. Refer to “DIAG-
NOSTIC RESULT ITEM CHART”, SC-24.
SEL577X
12. Press “ENTER” then test output code is displayed. Record the
test output code on the repair order.
13. Toggle back to the “DIAGNOSTIC SCREEN” for test results.
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
Trouble Diagnoses with Battery/Starting/Charging System Tester (Cont’d)
SC-23
DIAGNOSTIC RESULT ITEM CHART
NHSC0020S01
Diagnostic item
Service procedure
CHARGING SYSTEM NORMAL
Charging system is normal and will also show DIODE RIPPLE test result.
NO CHARGING VOLTAGE
Go to “WORK FLOW”, SC-25.
LOW CHARGING VOLTAGE
Go to “WORK FLOW”, SC-25.
HIGH CHARGING VOLTAGE
Go to “WORK FLOW”, SC-25.
DIODE RIPPLE NORMAL
Diode ripple is OK and will also show CHARGING VOLTAGE test result.
EXCESS RIPPLE DETECTED
Replace the alternator. Perform “DIODE RIPPLE” test again using Battery/Starting/
Charging system tester to confirm repair.
DIODE RIPPLE NOT DETECTED
Go to “WORK FLOW”, SC-25.
CHARGING SYSTEM
Trouble Diagnoses with Battery/Starting/Charging System Tester (Cont’d)
SC-24
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