Infiniti M45 (Y34). Manual — part 231
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-149
C
D
E
F
G
H
J
K
L
M
A
B
BL
4.
CHECK DOOR UNLOCK SENSOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect door lock actuator connector.
3.
Check continuity between each door control unit and ground.
OK or NG
OK
>> Replace door lock actuator (door unlock sensor).
NG
>> Repair or replace malfunctioning harness.
Connector
Terminal (wire color)
Continuity
Driver side: D11
4 (B)
−
ground
Should exist
Passenger side: D41
Rear LH: D61
Rear RH: D81
PIIA2859E
BL-150
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Diagnostic Procedure 4
AIS001F2
4–1 CHECK DOOR KEY CYLINDER LOCK SWITCH
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK SIGNAL)
With CONSULT
−
II
Check front door key cylinder switch (driver side) “KEY CYL LK-DR” in “DATA MONITOR” mode with CON-
SULT
−
II.
Without CONSULT
−
II
Check voltage between driver door control unit (LCU01) connector
and ground.
OK or NG
OK
>> Front door key cylinder switch (driver side) (lock) is OK.
NG
>> GO TO 2.
“KEY CYL LK-DR” should be ON when key inserted in
door key cylinder was turned to lock.
PIIA0350E
Connector
Terminal (wire color)
Key position
Voltage (V)
(+)
(–)
D8
10(GY)
Ground
Neutral/Unlock
Approx.5
Lock
0
PIIA2805E
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-151
C
D
E
F
G
H
J
K
L
M
A
B
BL
2.
CHECK DOOR KEY CYLINDER SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front door key cylinder switch (driver side) connector.
3.
Check continuity between front door key cylinder switch (driver side) terminals.
OK or NG
OK
>> Check the following.
●
Front door key cylinder switch (driver side) ground cir-
cuit
●
Harness for open or short between driver door control
unit (LCU01) and front door key cylinder switch (driver
side)
NG
>> Replace front door key cylinder switch (driver side).
Connector
Terminal
Condition
Continuity
D12
2
−
3
Neutral/Unlock
No
Lock
Yes
PIIB0829E
BL-152
VEHICLE SECURITY (THEFT WARNING) SYSTEM
4–2 CHECK DOOR KEY CYLINDER UNLOCK SWITCH
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK SIGNAL)
With CONSULT
−
II
Check front door key cylinder switch (driver side) “KEY CYL UN-DR” in “DATA MONITOR” mode with CON-
SULT
−
II.
Without CONSULT
−
II
Check voltage between driver door control unit (LCU01) connector
and ground.
OK or NG
OK
>> Front door key cylinder switch (driver side) (unlock) is
OK.
NG
>> GO TO 2.
“KEY CYL UN
−
DR” should be ON when key inserted in
driver door key cylinder was turned to unlock.
PIIA0353E
Connector
Terminal (wire color)
Key position
Voltage (V)
(+)
(–)
D8
9(PU/W)
Ground
Neutral/Lock
Approx.5
Unlock
0
PIIA2854E
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