Infiniti G20 (P11). Manual — part 363
4
CHECK HOOD SWITCH
1. Disconnect hood switch connector.
2. Check continuity between hood switch terminals 1 and 2.
SEL397TC
Continuity:
Condition: Pushed
No
Condition: Released
Yes
OK or NG
OK
©
Check the following.
I
Hood switch ground circuit
I
Harness for open or short between control unit and hood switch
NG
©
Replace hood switch.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-229
Trunk Room Lamp Switch Check
=NCEL0123S0403
1
PRELIMINARY CHECK
1. Turn ignition switch “OFF” and remove key from key cylinder.
2. Close all doors, engine hood and trunk lid.
“SECURITY” indicator lamp should turn off.
3. Open trunk lid.
“SECURITY” indicator lamp should blink every second.
OK or NG
OK
©
Trunk room lamp switch is OK.
NG
©
GO TO 2.
2
CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
Check voltage between control unit terminal 38 and ground.
SEL933V
Refer to wiring diagram in EL-220.
Voltage [V]:
Trunk lid is open.
Approx. 0
Trunk lid is closed.
Approx. 12
OK or NG
OK
©
Trunk room lamp switch is OK.
NG
©
GO TO 3.
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-230
3
CHECK TRUNK ROOM LAMP SWITCH
1. Disconnect trunk room lamp switch connector.
2. Check continuity between trunk room lamp switch terminals 1 and 2.
SEL934V
Continuity:
Condition: Closed
No
Condition: Open
Yes
OK or NG
OK
©
Check the following.
I
Trunk room lamp switch ground circuit
I
Harness for open or short between control unit and trunk room lamp switch
NG
©
Replace trunk room lamp switch.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-231
SECURITY INDICATOR LAMP CHECK
=NCEL0123S05
1
CHECK INDICATOR LAMP OUTPUT SIGNAL
1. Disconnect control unit connector.
2. Check voltage between control unit terminal 31 and ground.
SEL935V
Refer to wiring diagram in EL-219.
Battery voltage should exist.
OK or NG
OK
©
Security indicator lamp is OK.
NG
©
GO TO 2.
2
CHECK INDICATOR LAMP
OK or NG
OK
©
GO TO 3.
NG
©
Replace indicator lamp.
3
CHECK POWER SUPPLY CIRCUIT FOR INDICATOR LAMP
1. Disconnect security lamp connector.
2. Check voltage between indicator lamp terminal 1 and ground.
SEL192X
OK or NG
OK
©
Check harness for open or short between security indicator lamp and control unit.
NG
©
Check the following.
I
7.5A fuse [No. 5, located in fuse block (J/B)]
I
Harness for open or short between security indicator lamp and fuse
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-232
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