Nissan Frontier D22. Instruction — part 154
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-53
C
D
E
F
G
H
J
K
L
M
A
B
BL
SYMPTOM CHART
X : Applicable
*1: Make sure the system is in the armed phase.
Before starting trouble diagnoses above, perform
Symptom numbers in the symptom chart correspond with those of “PRELIMINARY CHECK”.
REFERENCE PAGE (BL-
)
SYMPTOM
PRELIM
INAR
Y CHECK
POW
E
R SUPPL
Y AND
GROUND CI
RCUIT
CHECK
DOO
R
AND HO
OD SW
IT
CH CHECK
SECURI
TY
INDI
CA
T
O
R L
A
MP CHECK
DOO
R
KEY CYLINDER
SW
ITCH
CHECK
VEHI
C
L
E
SECURITY
HORN AL
A
R
M
CHECK
VEHI
C
L
E
SECURITY HEADL
A
MP AL
ARM
CHECK
ST
AR
T
E
R INTERRUP
T SY
STEM CHECK
C
heck
“
REM
O
TE KEY
LESS
ENTR
Y
” sys
te
m
.
1
Vehicle security indicator does not
turn ON or blink.
X
X
X
2
V
ehi
cl
e secu
ri
ty
sy
st
em
ca
nnot
b
e
s
e
t b
y
...
.
All items
X
X
X
Door outside key
X
X
Keyfob
X
X
3
*1
V
e
hi
cl
e s
e
cur
it
y
s
yst
em
d
oes
no
t
al
ar
m
w
hen .
..
Any door is opened.
X
X
Front door LH or RH
(King Cab) is unlocked
without using key or
keyfob.
X
4
V
ehi
cl
e sec
u
ri
ty
a
la
rm
does
no
t
ac
ti
va
te
.
All function
X
X
X
Horn alarm
X
X
Headlamp alarm
X
X
Starter interrupt
X
X
5
V
e
h
icl
e se
cur
it
y
s
yst
em
cann
ot
be
canc
el
ed by .
..
.
Door outside key
X
X
Keyfob
X
X
BL-54
VEHICLE SECURITY (THEFT WARNING) SYSTEM
POWER SUPPLY AND GROUND CIRCUIT CHECK
Power Supply Circuit Check
If NG, check the following.
●
7.5A fuse [No. 28, located in the fuse block (J/B)]
●
10A fuse [No. 5, located in the fuse block (J/B)]
●
7.5A fuse [No. 20, located in the fuse block (J/B)]
●
Harness for open or short between smart entrance control unit
and fuse
Ground Circuit Check
Terminals
Ignition switch position
(+)
(
−)
OFF
ACC
ON
M112 - 49 (R/Y)
Ground
Battery volt-
age
Battery volt-
age
Battery volt-
age
M111 - 26 (G)
Ground
0V
Battery volt-
age
Battery volt-
age
M111 - 27 (G/
W)
Ground
0V
0V
Battery volt-
age
LEL026A
Terminals
Continuity
M111 - 43 (B) - Ground
Yes
M112 - 64 (B) - Ground
LEL008A
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-55
C
D
E
F
G
H
J
K
L
M
A
B
BL
DOOR AND HOOD SWITCH CHECK
Door Switch Check
1.
PRELIMINARY CHECK
1.
Turn ignition switch OFF and remove key from ignition key cylinder.
2.
Close all doors and hood.
“SECURITY” indicator lamp should turn off.
3.
Open any passenger door.
“SECURITY” indicator lamp should blink every 2.6 seconds.
OK or NG
OK
>> Door switch is OK. Check hood switch. Refer to
.
NG
>> GO TO 2.
2.
CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit connector M110 terminals 1 (G/R), 2 (R/B), and 3 (R/B)
(Crew Cab) and ground.
Refer to
BL-49, "Wiring Diagram — VEHSEC —"
OK or NG
OK
>> Door switch is OK. Check hood switch. Refer to
.
NG
>> GO TO 3.
WEL517A
BL-56
VEHICLE SECURITY (THEFT WARNING) SYSTEM
3.
CHECK DOOR SWITCH
1.
Disconnect door switch harness connector.
2.
Check continuity between door switch terminals.
OK or NG
OK
>> Check the following.
●
Front door switch LH ground circuit or door switch ground condition
●
Harness for open or short between smart entrance control unit and door switch
NG
>> Replace door switch.
Hood Switch Check
1.
PRELIMINARY CHECK
1.
Turn ignition switch OFF and remove key from ignition key cylinder.
2.
Close all doors and hood.
“SECURITY” indicator lamp should turn off.
3.
Open hood.
“SECURITY” indicator lamp should blink every 2.6 seconds.
OK or NG
OK
>> Hood switch is OK.
NG
>> GO TO 2.
2.
CHECK HOOD SWITCH FITTING CONDITION
OK or NG
OK
>> GO TO 3.
NG
>> Adjust installation of hood switch or hood.
Continuity
:
Front door switch LH terminals 2 - 3
Door switch is pressed - No
Door switch is released - Yes
Front door switch RH, rear door switch LH or
RH terminal + - ground
Door switch is pressed - No
Door switch is released - Yes
AEL577C
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