Infiniti Q45. Manual — part 195
POWER DOOR LOCK SYSTEM
BL-49
C
D
E
F
G
H
J
K
L
M
A
B
BL
2.
CHECK KEY SWITCH CIRCUIT
1.
Disconnect key switch connector.
2.
Check continuity between BCM connector M4 terminal 69 and key switch connector M64 terminal 4.
3.
Check continuity between BCM connector M4 terminal 69 and
ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK KEY SWITCH
Check continuity between key switch terminals 3 and 4.
OK or NG
OK
>> Check the following.
●
10A fuse [No. 32, located in fuse block (J/B) No. 2]
●
Harness for open or short between key switch and
fuse
NG
>> Replace key switch.
Check Front Door Switch
NIS000UA
1.
CHECK FRONT DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check front door switch (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check front door switch in “SWITCH MONITOR” mode.Refer to
.
OK or NG
OK
>> Front door switch is OK.
NG
>> GO TO 2
69 (PU/W) – 4 (PU/W)
: Continuity should exist.
69 (PU/W) – Ground
: Continuity should not exist.
PIIA2821E
Connector
Terminal
Condition of key switch
Continuity
M64
3
4
Key is inserted in ignition key cylinder.
Yes
Key is removed from ignition key cylinder.
No
PIIA3044E
Monitor item
Condition
DOOR SW-DR
OPEN
: ON
CLOSE
: OFF
DOOR SW-AS
OPEN
: ON
CLOSE
: OFF
PIIA2464E
BL-50
POWER DOOR LOCK SYSTEM
2.
CHECK FRONT DOOR SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front door switch connector and BCM connector.
3.
Check continuity between front door switch connector B20 (driverside), B220 (passenger side) terminal 1
and BCM connector M4 (passenger), B4 (driver) terminal 37, 142.
4.
Check continuity between front door switch connector B20
(driver side), B220 (passenger side) terminal 1 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK FRONT DOOR SWITCH
Check continuity between front door switch (driver side), (passenger
side) terminal 1 and ground part of door switch.
OK or NG
OK
>> Check door switch case ground. If door switch case
ground is OK, replace BCM.
NG
>> Replace malfunction front door switch.
Driver side door switch
1 (W/R) – 142 (W/R)
: Continuity should exist.
Passenger side door switch
1 (W/G) – 37 (W/G)
: Continuity should exist.
Each door switch
1 (W/R, W/G) – Ground
: Continuity should not exist.
PIIA3118E
Terminal
Front door switch
Continuity
1
Ground part of
door switch
Pushed
NO
Released
YES
PIIA3351E
POWER DOOR LOCK SYSTEM
BL-51
C
D
E
F
G
H
J
K
L
M
A
B
BL
Check Door Unlock Sensor
NIS000UB
1.
CHECK DOOR UNLOCK SENSOR INPUT SIGNAL
With CONSULT-II
Check door unlock sensor “LOCK SIG” in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check door lock knob operation in Switch monitor mode.
Refer to Remote keyless entry system
.
OK or NG
OK
>> Door unlock sensor is OK.
NG
>> GO TO 2.
2.
CHECK DOOR UNLOCK SENSOR INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect door lock actuator connector.
3.
Check voltage between each door control unit connector and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace malfunctioning door control unit.
When door is locked
: LOCK SIG LOCK
When door is unlocked
: LOCK SIG UNLK
PIIA2803E
Door control unit connector
Terminal (Wire color)
Voltage (V)
(Approx.)
(+)
(-)
Front door
Driver side: D8
6 (G/Y)
Ground
5
Passenger side: D38
13 (G/Y)
Rear door
LH: D58
RH: D78
PIIB0179E
BL-52
POWER DOOR LOCK SYSTEM
3.
CHECK DOOR UNLOCK SENSOR SIGNAL CIRCUIT
1.
Disconnect door control unit connector.
2.
Check continuity between door control unit connector and door lock actuator (door unlock sensor) con-
nector.
3.
Check continuity between door control unit connector and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
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 connector and ground.
OK or NG
OK
>> Replace door lock actuator (door unlock sensor).
NG
>> Repair or replace harness.
Connector
Terminal
(wire color)
Connector
Terminal
(Wire color)
Continuity
Driver side:
D8
6 (G/Y)
D11
2 (G/Y)
Yes
Passenger
side: D38
13 (G/Y)
D41
Rear LH:
D58
D61
Rear RH:
D78
D81
Connector
Terminal (Wire color)
Continuity
Driver side: D8
6 (G/Y)
Ground
No
Passenger side: D38
13 (G/Y)
Rear LH: D58
Rear RH: D78
PIIA2857E
PIIB0180E
Connector
Terminal (wire color)
Continuity
Driver side: D11
4 (B)
Ground
Yes
Passenger side: D41
Rear LH: D61
Rear RH: D81
PIIA2859E
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