Infiniti QX4 (R50). Manual — part 366
DOOR SWITCH CHECK
=NBEL0115S05
1
CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit terminals 28, 29 or 40 and ground.
SEL305X
Refer to wiring diagram in EL-275.
OK or NG
OK
©
Door switch is OK.
NG
©
GO TO 2.
2
CHECK DOOR SWITCH
1. Disconnect door switch connector.
2. Check continuity between door switch terminals.
SEL306X
OK or NG
OK
©
Check the following.
I
Door switch ground circuit (Front, back door) or door switch ground condition
I
Harness for open or short between smart entrance control unit and door switch
NG
©
Replace door switch.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
MULTI-REMOTE CONTROL SYSTEM
Trouble Diagnoses (Cont’d)
EL-281
KEY SWITCH (INSERT) CHECK
=NBEL0115S07
1
CHECK KEY SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit terminal 32 and ground.
SEL307X
Refer to wiring diagram in EL-274.
OK or NG
OK
©
Key switch is OK.
NG
©
GO TO 2.
2
CHECK KEY SWITCH (INSERT)
Check continuity between terminals 1 and 2.
SEL308X
OK or NG
OK
©
Check the following.
I
7.5A fuse [No. 24, located in fuse block (J/B)]
I
Harness for open or short between key switch and fuse
I
Harness for open or short between smart entrance control unit and key switch
NG
©
Replace key switch.
MULTI-REMOTE CONTROL SYSTEM
Trouble Diagnoses (Cont’d)
EL-282
DOOR LOCK/UNLOCK SWITCH LH CHECK
=NBEL0115S10
1
CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
1. Disconnect smart entrance control unit connector.
2. Check continuity between control unit terminal 23 or 35 and ground.
SEL309X
Refer to wiring diagram in EL-274.
OK or NG
OK
©
Door lock/unlock switch is OK.
NG
©
GO TO 2.
2
CHECK DOOR LOCK/UNLOCK SWITCH
1. Disconnect door lock/unlock switch connector.
2. Check continuity between each door lock/unlock switch terminals.
I
Power window main switch (Door lock/unlock switch LH)
SEL310X
OK or NG
OK
©
Check the following.
I
Ground circuit for door lock/unlock switch
I
Harness for open or short between door lock/unlock switch and smart entrance control
unit connector
NG
©
Replace door lock/unlock switch.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
MULTI-REMOTE CONTROL SYSTEM
Trouble Diagnoses (Cont’d)
EL-283
FRONT LH DOOR UNLOCK SENSOR CHECK
=NBEL0115S06
1
CHECK FRONT LH DOOR UNLOCK SENSOR INPUT SIGNAL
Check voltage between smart entrance control unit terminal 36 and ground.
SEL323X
Refer to wiring diagram in EL-275.
OK or NG
OK
©
Door unlock sensor is OK.
NG
©
GO TO 2.
2
CHECK FRONT LH DOOR UNLOCK SENSOR
1. Disconnect front LH door unlock sensor connector.
2. Check continuity between door unlock sensor terminals.
SEL324X
OK or NG
OK
©
Check the following.
I
Door unlock sensor ground circuit
I
Harness for open or short between smart entrance control unit and door unlock sensor
NG
©
Replace door unlock sensor.
MULTI-REMOTE CONTROL SYSTEM
Trouble Diagnoses (Cont’d)
EL-284
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