Infiniti M45 (Y34). Manual — part 205
POWER DOOR LOCK SYSTEM
BL-45
C
D
E
F
G
H
J
K
L
M
A
B
BL
2.
CHECK OUTPUT SIGNAL
1.
Connect passenger door control unit connector.
2.
Check voltage between passenger door control unit connector D38 terminals 8 (SB), 9 (BR) and ground.
OK or NG
OK
>> Replace malfunction door lock actuator.
NG
>> Replace passenger door control unit.
Check Front Door Key Cylinder Switch
AIS001OI
1.
CHECK DOOR KEY CYLINDER SWITCH SIGNAL
With CONSULT-II
Check front door key cylinder switch (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in DATA MONITOR mode in
CONSULT–II.Refer to
●
When key inserted in front key cylinder is turned to LOCK:
●
When key inserted in front key cylinder is turned to UNLOCK:
Without CONSULT-II
Check front door key cylinder switch operation in “SWITCH MONITOR” mode. Refer to
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
Door lock operation
Terminal
(Wire color)
Voltage (V)
(Approx.)
(+)
(–)
Free
→
Lock
8 (SB)
Ground
0
→
Battery voltage
Free
→
Unlock
9 (BR)
0
→
Battery voltage
PIIA2819E
KEY CYL LK-SW
: ON
KEY CYL UN-SW
: ON
PIIA3149E
BL-46
POWER DOOR LOCK SYSTEM
2.
CHECK DOOR KEY CYLINDER SWITCH
Check continuity between door key cylinder switch connector terminals.
OK or NG
OK
>> Check the following.
●
Harness between front key cylinder switch and driver
door control unit
●
Harness between front key cylinder switch and ground
NG
>> Replace front door key cylinder switch.
Check Key Switch
AIS001OF
1.
CHECK KEY SWITCH
With CONSULT-II
Check key switch “IGN KEY SW” in “DATA MONITOR” mode with
CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector M4 terminal 69 (PU/W) and ground.
OK or NG
OK
>> Key switch is OK.
NG
>> GO TO 2.
Terminals
Condition
Continuity
1 – 2
Key is turned to UNLOCK
Yes
Key is turned to LOCK or neutral.
No
2 – 3
Key is turned to LOCK.
Yes
Key is turned to UNLOCK or neutral.
No
PIIA3148E
Key is inserted in ignition key
cylinder
: IGN KEY SW ON
Key is removed from ignition key
cylinder
: IGN KEY SW OFF
PIIA4243E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M4
69 (PU/W)
Ground
Key is inserted
Battery voltage
Key is removed
0
PIIA2820E
POWER DOOR LOCK SYSTEM
BL-47
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 (PU/W) and key switch connector M64 terminal
4 (PU/W).
3.
Check continuity between BCM connector M4 terminal 69 (PU/
W) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK KEY SWITCH
Check continuity between key switch terminals.
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
AIS002BW
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.
Yes
Key is removed.
No
PIIA3044E
Monitor item
Condition
DOOR SW-DR
OPEN
: ON
CLOSE
: OFF
DOOR SW-AS
OPEN
: ON
CLOSE
: OFF
PIIA2464E
BL-48
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 (driver side), B220 (passenger side) terminal 1
(R/Y, LG) and BCM connector B4, M4 terminal 142 (R/Y), 37 (LG).
4.
Check continuity between front door switch connector B20
(driver side), B220 (passenger side) terminal 1(R/Y, LG) 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 connector B20 (driver
side), B220 (passenger side) terminal 1 and ground part of door
switch.
OK or NG
OK
>> Check door switch case ground.
NG
>> Replace malfunction front door switch.
Driver side door switch
1 (R/Y) - 142 (R/Y)
: Continuity should exist.
Passenger side door switch
1 (LG) - 37 (LG)
: Continuity should exist.
Each door switches
1 (LG, R/Y) - Ground
: Continuity should not exist.
PIIA3118E
Terminal
Front door switch
Continuity
1
Ground part of
door switch
Pushed
No
Released
Yes
PIIA3351E
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