Infiniti G20 (P11). Manual — part 362
SEL792VD
POWER SUPPLY AND GROUND CIRCUIT CHECK
NCEL0123S03
Power Supply Circuit Check
NCEL0123S0301
Terminals
Ignition switch position
(+)
(−)
OFF
ACC
ON
Connector
Terminal
(wire color)
M23
11 (W/G)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
M24
33 (G/R)
Ground
0V
0V
Battery
voltage
M24
21 (G)
Ground
0V
Battery
voltage
Battery
voltage
SEL781V
Ground Circuit Check
NCEL0123S0302
Terminals
Continuity
16 - Ground
Yes
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-225
DOOR, HOOD AND TRUNK ROOM LAMP SWITCH
CHECK
=NCEL0123S04
Door Switch Check
NCEL0123S0401
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 any passenger door or back door.
“SECURITY” indicator lamp should blink every second.
OK or NG
OK
©
Door switch is OK. Next, go to “Hood Switch Check”.
NG
©
GO TO 2.
2
CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between control unit terminals 28, 29 or 40 and ground.
MTBL0194
SEL930V
Refer to wiring diagram in EL-220.
OK or NG
OK
©
Door switch is OK. Next, go to “Hood Switch Check”.
NG
©
GO TO 3.
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-226
3
CHECK DOOR SWITCH
1. Disconnect door switch connector.
2. Check continuity between door switch terminals.
MTBL0195
SEL931V
OK or NG
OK
©
Check the following.
I
Door switch ground circuit (Front, rear door) or door switch ground condition
I
Harness for open or short between control unit and door switch
NG
©
Replace door 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-227
Hood Switch Check
=NCEL0123S0402
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 hood.
“SECURITY” indicator lamp should blink every second.
OK or NG
OK
©
Hood switch is OK. Next, go to “Trunk Room Lamp Switch Check”.
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.
3
CHECK HOOD SWITCH INPUT SIGNAL
Check voltage between control unit terminal 27 and ground.
SEL932V
Refer to wiring diagram in EL-220.
Voltage [V]:
Engine hood is open.
0
Engine hood is closed.
Approx. 12
OK or NG
OK
©
Hood switch is OK. Next, go to “Trunk Room Lamp Switch Check”.
NG
©
GO TO 4.
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnoses (Cont’d)
EL-228
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