Infiniti QX4 (R50). Manual — part 328
Trouble Diagnoses
NBEL0055
SYMPTOM CHART
NBEL0055S01
REFERENCE PAGE (EL-
)
SYMPTOM
POWER
SUPPL
Y
AND
GROUND
CIRCUIT
CHECK
LIGHTING
SWITCH
INPUT
SIGNAL
CHECK
KEY
SWITCH
(INSER
T)
CHECK
SEA
T
BEL
T
BUCKLE
SWITCH
CHECK
DRIVER
SIDE
DOOR
SWITCH
CHECK
Light warning chime does not acti-
vate.
X
X
X
Ignition key warning chime does not
activate.
X
X
X
Seat belt warning chime does not
activate.
X
X
All warning chimes do not activate.
X
SEL301X
POWER SUPPLY AND GROUND CIRCUIT CHECK
NBEL0055S02
Power Supply Circuit Check
NBEL0055S0201
Terminals
Ignition switch position
(+)
(−)
OFF
ACC
ON
10
Ground
Battery
voltage
Battery
voltage
Battery
voltage
33
Ground
0V
0V
Battery
voltage
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
WARNING CHIME
Trouble Diagnoses
EL-129
SEL013W
Ground Circuit Check
NBEL0055S0202
Terminals
Continuity
16 - Ground
Yes
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-130
LIGHTING SWITCH INPUT SIGNAL CHECK
=NBEL0055S03
1
CHECK LIGHTING SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit terminal 34 and ground.
SEL377X
OK or NG
OK
©
Lighting switch is OK.
NG
©
GO TO 2.
2
CHECK FUSE
Is 10A fuse (No. 61, located in the fuse and fusible link box) OK?
OK or NG
OK
©
GO TO 3.
NG
©
Replace fuse.
3
CHECK TAIL LAMP RELAY CIRCUIT
Check voltage between headlamp battery saver control unit terminal 6, 14 and ground.
SEL378X
OK or NG
OK
©
Check the following.
I
Tail lamp relay
I
Harness for open or short between smart entrance control unit and tail lamp relay.
NG
©
GO TO 4.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-131
4
CHECK TAIL LAMP SWITCH GROUND CIRCUIT
1. Disconnect headlamp battery saver control unit connector.
2. Check continuity between headlamp battery saver control unit terminal 5, 13 and ground.
SEL379X
OK or NG
OK
©
Check headlamp battery saver control unit. Refer to EL-42.
NG
©
Check the following.
I
Lighting switch
I
Harness for open or short between headlamp battery saver control unit terminal 5, 13
and lighting switch terminal 11
I
Harness between lighting switch terminal 5 and ground
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-132
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