Infiniti G35 (V35). Manual — part 722

SC-24

CHARGING SYSTEM

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 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.

11. Diagnostic result is displayed on the tester. Refer to

SC-24,

"DIAGNOSTIC RESULT ITEM CHART"

.

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.

DIAGNOSTIC RESULT ITEM CHART

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

Go to

SC-25, "WORK FLOW"

.

LOW CHARGING VOLTAGE

HIGH CHARGING VOLTAGE

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

SC-25, "WORK FLOW"

.

CHARGING SYSTEM

SC-25

C

D

E

F

G

H

I

J

L

M

A

B

SC

WORK FLOW

*1

SC-27, "Check “L” Terminal Circuit
(Open)"

*2

SC-28, "Check “L” Terminal Circuit
(Short)"

*3

SC-28, "Check “S” Terminal Circuit"

*4

SC-29, "Check “B” Terminal Circuit"

*5

SC-31, "ALTERNATOR PULLEY
INSPECTION"

SKIB0527E

SC-26

CHARGING SYSTEM

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 terminals connection.

2.

CHECK FUSE AND FUSIBLE LINK

Check for blown alternator and combination meter fuses.

OK or NG

OK

>> GO TO 3.

NG

>> Be sure to eliminate cause of malfunction before installing new fuse. Refer to

PG-3, "POWER

SUPPLY ROUTING CIRCUIT"

.

3.

CHECK “E” TERMINAL CONNECTION

Check if “E” terminal is clean and tight.

OK or NG

OK

>> GO TO 4.

NG

>> Repair “E” terminal connection.

4.

CHECK ALTERNATOR AND POWER STEERING OIL PUMP BELT TENSION

Check alternator and power steering oil pump belt tension. Refer to

EM-14, "Checking Drive Belts"

.

OK or NG

OK

>> INSPECTION END

NG

>> Repair as needed.

Unit

Power source (Power supply terminals)

Fuse No.

Alternator

Battery (“S” terminal)

36

Combination meter

Ignition switch ON (“L” terminal)

14

CHARGING SYSTEM

SC-27

C

D

E

F

G

H

I

J

L

M

A

B

SC

DIAGNOSTIC PROCEDURE 1
Check “L” Terminal Circuit (Open)

1.

CHECK “L” TERMINAL CONNECTION

1.

Turn ignition switch OFF.

2.

Check if “L” terminal is clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair “L” terminal connection. Confirm repair by performing complete Battery/Starting/Charging

system test.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1.

Disconnect alternator connector.

2.

Apply ground to alternator harness connector F20 terminal 3 (W/
R) with the ignition switch in the ON position.

OK or NG

OK

>> Go to

SC-25, "WORK FLOW"

.

NG

>> Check the following.

●

Charge warning lamp (combination meter)

●

Harness for open between combination meter and
fuse

●

Harness for open between combination meter and alternator

3 (W/R) – Ground

: Charge warning lamp should
light up.

SKIB0599E