Infiniti Q45 (FY33). Manual - part 266
SEL070Y
DIAGNOSTIC PROCEDURE 1
(“L” terminal circuit check)
CHECK “L” TERMINAL CONNECTION.
Check to see if “L” terminal is clean and
tight.
OK
E
NG
Repair “L” terminal connec-
tion. Confirm repair by per-
forming complete Battery/
Starting/Charging system
test.
CHECK “L” TERMINAL CIRCUIT.
1. Disconnect
E108
connector.
2. Apply ground to harness connector
E108
terminal
q
3
(W/R) with the ignition
switch in the ON position.
CHARGE lamp should light up.
OK
E
NG
Check the following.
I
7.5A fuse [No.
4
, located
in fuse block (J/B)]
I
CHARGE lamp
I
Harness for open or short
between combination
meter and fuse
I
Harness for open or short
between combination
meter and alternator
Replace the alternator.
Confirm repair by performing complete
Battery/Starting/Charging system test.
SEL071Y
DIAGNOSTIC PROCEDURE 2
(“B” terminal circuit check)
SEL072Y
CHECK “B” TERMINAL CONNECTION.
Check to see if “B” terminal is clean and
connected tightly.
OK
E
NG
Repair “B” terminal connec-
tion.
CHECK ALTERNATOR “B” TERMINAL
CIRCUIT.
Check voltage between alternator harness
connector
E107
terminal
q
1
(B/R) and
ground using a digital circuit tester.
Battery voltage should exist.
OK
E
NG
Check the following.
I
120A fusible link (letter a ,
located in fuse and fus-
ible link box)
I
Harness for open or short
between alternator and
fusible link
CHECK “B” TERMINAL CONNECTION
QUALITY (VOLTAGE DROP TEST).
Check voltage between alternator harness
connector
E107
terminal
q
1
(B/R) and bat-
tery positive terminal using a digital tester.
When the engine running at idle and warm:
Voltage: Less than 0.2V
OK
E
NG
Check harness between the
battery and the alternator
for poor continuity.
Replace the alternator.
Confirm repair by performing complete
Battery/Starting/Charging system test.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
CHARGING SYSTEM
Trouble Diagnoses with
Battery/Starting/Charging System Tester
(Cont’d)
H
H
H
H
H
EL-55