Infiniti G20 (P11). Manual — part 333
Trouble Diagnoses
NCEL0055
SYMPTOM CHART
NCEL0055S01
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
X
SEL177XA
POWER SUPPLY AND GROUND CIRCUIT CHECK
NCEL0055S02
Power Supply Circuit Check
NCEL0055S0201
Terminals
Ignition switch position
(+)
(−)
OFF
ACC
ON
10
Ground
Battery
voltage
Battery
voltage
Battery
voltage
11
33
Ground
0V
0V
Battery
voltage
SEL781V
Ground Circuit Check
NCEL0055S0202
Terminals
Continuity
16 - Ground
Yes
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
WARNING CHIME
Trouble Diagnoses
EL-109
LIGHTING SWITCH INPUT SIGNAL CHECK
=NCEL0055S03
1
CHECK LIGHTING SWITCH INPUT SIGNAL
Check voltage between control unit terminal 34 and ground.
SEL782V
Voltage [V]:
Condition of lighting switch: 1ST or 2ND
Approx. 12
Condition of lighting switch: OFF
0
OK or NG
OK
©
Lighting switch is OK.
NG
©
Check the following.
I
10A fuse (No. 34, located in the fuse and fusible link box)
I
Harness for open or short between control unit and lighting switch
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-110
KEY SWITCH (INSERT) CHECK
=NCEL0055S04
1
CHECK KEY SWITCH INPUT SIGNAL
Check voltage between control unit terminal 32 and ground.
SEL783V
Voltage [V]:
Condition of key switch: Key is inserted.
Approx. 12
Condition of key switch: Key is withdrawn.
0
OK or NG
OK
©
Key switch is OK.
NG
©
GO TO 2.
2
CHECK KEY SWITCH (INSERT)
Check continuity between terminals 1 and 2.
SEL784V
Continuity:
Condition of key switch: Key is inserted.
Yes
Condition of key switch: Key is removed.
No
OK or NG
OK
©
Check the following.
I
10A fuse [No. 24, located in fuse block (J/B)]
I
Harness for open or short between key switch and fuse
I
Harness for open or short between control unit and key switch
NG
©
Replace key switch.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-111
SEAT BELT BUCKLE SWITCH CHECK
=NCEL0055S05
1
CHECK SEAT BELT BUCKLE SWITCH INPUT SIGNAL
1. Turn ignition switch “ON”.
2. Check voltage between control unit terminal 22 and ground.
SEL785V
Voltage [V]:
Condition of seat belt buckle switch: Fastened
Approx. 12
Condition of seat belt buckle switch: Unfastened
0
OK or NG
OK
©
Seat belt buckle switch is OK.
NG
©
GO TO 2.
2
CHECK SEAT BELT BUCKLE SWITCH
Check continuity between terminals 1 and 2 when seat belt is fastened and unfastened.
SEL298VB
Continuity:
Seat belt is fastened.
No
Seat belt is unfastened.
Yes
OK or NG
OK
©
Check the following.
I
Seat belt buckle switch ground circuit
I
Harness for open or short between control unit and seat belt buckle switch
NG
©
Replace seat belt buckle switch.
WARNING CHIME
Trouble Diagnoses (Cont’d)
EL-112
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