Infiniti G35 (V35). Manual — part 185
INTELLIGENT KEY SYSTEM
BL-127
C
D
E
F
G
H
J
K
L
M
A
B
BL
Check Key Switch (Intelligent Key Unit Input)
NIS001JW
1.
CHECK KEY SWITCH
With CONSULT-II
Check key switch (“KEY SW”) in “DATA MONITOR” mode with CON-
SULT-II.
Without CONSULT-II
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key unit harness connector.
3.
Check voltage between Intelligent Key unit harness connector
M75 terminal 7 and ground.
OK or NG
OK
>> Key switch is OK.
NG
>> GO TO 2.
2.
CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1.
Remove mechanical key from ignition switch.
2.
Disconnect key switch and ignition knob switch connector.
3.
Check voltage between key switch and ignition knob switch harness connector M310 terminal 3 and
ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace key switch and ignition knob switch
power supply circuit.
Monitor item
Condition
KEY SW
Insert mechanical key into ignition switch: ON
Remove mechanical key from ignition switch: OFF
PIIB1359E
Connec-
tor
Terminal (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M75
7 (B/P)
Ground
Insert mechanical key
into ignition switch
Battery voltage
Remove mechanical
key from ignition switch
0
PIIB4817E
3 (Y) - Ground
: Battery voltage
PIIB4254E
BL-128
INTELLIGENT KEY SYSTEM
3.
CHECK KEY SWITCH OPERATION
Check continuity between key switch and ignition knob switch con-
nector M310 terminal 3 and 4.
OK or NG
OK
>> GO TO 4.
NG
>> Replace key cylinder assembly (built-in key switch).
4.
CHECK KEY SWITCH CIRCUIT
1.
Check continuity between Intelligent Key unit harness connector M75 terminal 7 and key switch and igni-
tion knob switch harness connector M310 terminal 4.
2.
Check continuity between Intelligent Key unit harness connector
M75 terminal 7 and ground.
OK or NG
OK
>> Check the condition of harness and harness connector.
NG
>> Repair or replace harness between Intelligent Key unit
and key switch and ignition knob switch.
Connector
Terminal
Condition
Continuity
M310
3
4
Insert mechanical key
into ignition switch.
Yes
Remove mechanical key
from ignition switch.
No
PIIA6140E
7 (B/P) - 4 (B/P)
: Continuity should exist.
7 (B/P) - Ground
: Continuity should not exist.
PIIB4255E
INTELLIGENT KEY SYSTEM
BL-129
C
D
E
F
G
H
J
K
L
M
A
B
BL
Check Key Switch (BCM Input)
NIS001JX
1.
CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1.
Remove mechanical key from ignition switch.
2.
Disconnect key switch and ignition knob switch connector.
3.
Check voltage between key switch and ignition knob switch har-
ness connector M310 terminal 3 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check harness between key switch and ignition knob
switch and fuse.
2.
CHECK KEY SWITCH
Check continuity between key switch and ignition knob switch con-
nector M310 terminals 3 and 4.
OK or NG
OK
>> GO TO 3.
NG
>> Replace key cylinder assembly (built-in key switch).
3.
CHECK KEY SWITCH SIGNAL CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector M1 terminal
37 and key switch and ignition knob switch harness connector
M310 terminal 4.
3.
Check continuity between BCM harness connector M1 terminal
37 and ground.
OK or NG
OK
>> Key switch (BCM input) circuit is OK.
NG
>> Repair or replace harness between key switch and ignition knob switch and BCM.
3 (Y) – Ground
: Battery voltage.
PIIB4254E
Connector
Terminal
Condition
Continuity
M310
3
4
Insert mechanical key
into ignition switch.
Yes
Remove mechanical key
from ignition switch.
No
PIIA6140E
37 (B/P) – 4 (B/P)
: Continuity should exist.
37 (B/P) – Ground
: Continuity should not exist.
PIIB4256E
BL-130
INTELLIGENT KEY SYSTEM
Check Ignition Knob Switch
NIS001JY
1.
CHECK IGNITION KNOB SWITCH
With CONSULT-II
Display “PUSH SW” on DATA MONITOR screen, and check if ON/
OFF display is linked to ignition switch operation.
Without CONSULT-II
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key unit connector.
3.
Check voltage between Intelligent Key unit harness connector
M75 terminal 27 and ground.
OK or NG
OK
>> Ignition knob switch is OK.
NG
>> GO TO 2.
2.
CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect key switch and ignition knob switch connector.
3.
Check voltage between key switch and ignition knob switch harness connector M310 terminal 1 and
ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace key switch and ignition knob switch
power supply circuit.
Monitor item
Condition
PUSH SW
Ignition switch is pushed: ON
Ignition switch is withdrawn: OFF
PIIB1360E
Connec-
tor
Terminal (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M75
27 (OR)
Ground
Ignition switch is
pushed
Battery voltage
Ignition switch is
released
0
PIIB1364E
1 (Y) - Ground
: Battery voltage
PIIB4257E
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