diagram INFINITI QX4 2001 Factory Service Manual

FIG. 4NBEL0122S04
MEL861L
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
THEFT WARNING SYSTEM
Wiring Diagram Ð THEFT Ð (Cont'd)
EL-303

FIG. 5NBEL0122S05
MEL862L
THEFT WARNING SYSTEM
Wiring Diagram Ð THEFT Ð (Cont'd)
EL-304

FIG. 6NBEL0122S06
MEL863L
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
THEFT WARNING SYSTEM
Wiring Diagram Ð THEFT Ð (Cont'd)
EL-305

DOOR, HOOD AND GLASS HATCH SWITCH CHECK=NBEL0123S04Door Switch CheckNBEL0123S0401
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-301.
OK or NG
OK©Door switch is OK, and go to hood switch check.
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.
IDoor switch ground circuit (Front LH, back door) or door switch ground condition
IHarness 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
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-309

Hood Switch Check=NBEL0123S0402
1 CHECK HOOD SWITCH FITTING CONDITION
OK or NG
OK©GO TO 2.
NG©Adjust installation of hood switch or hood.
2 CHECK HOOD SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit terminal 27 and ground.
SEL337X
Refer to wiring diagram in EL-300.
OK or NG
OK©Hood switch is OK, and go to glass hatch switch check.
NG©GO TO 3.
3 CHECK HOOD SWITCH
1. Disconnect hood switch connector.
2. Check continuity between hood switch terminals 1 and 2.
SEL338X
OK or NG
OK©Check the following.
IHood switch ground circuit
IHarness for open or short between smart entrance control unit and hood switch
NG©Replace hood switch.
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-310

Glass Hatch Switch Check=NBEL0123S0403
1 CHECK GLASS HATCH SWITCH INPUT SIGNAL
Check voltage between smart entrance control unit terminal 38 and ground.
SEL339X
Refer to wiring diagram in EL-300.
OK or NG
OK©Glass hatch switch is OK.
NG©GO TO 2.
2 CHECK GLASS HATCH SWITCH
1. Disconnect glass hatch switch connector.
2. Check continuity between glass hatch switch terminals 1 and 2.
SEL340X
OK or NG
OK©Check the following.
IGlass hatch switch ground circuit
IHarness for open or short between smart entrance control unit and glass hatch switch
NG©Replace glass hatch switch.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-311

SECURITY INDICATOR LAMP CHECK=NBEL0123S05
1 CHECK INDICATOR LAMP OUTPUT SIGNAL
1. Disconnect smart entrance control unit connector.
2. Check voltage between control unit terminal 31 and ground.
SEL341X
Refer to wiring diagram in EL-300.
OK or NG
OK©Security indicator lamp is OK.
NG©GO TO 2.
2 CHECK INDICATOR LAMP
OK or NG
OK©GO TO 3.
NG©Replace indicator lamp.
3 CHECK POWER SUPPLY CIRCUIT FOR INDICATOR LAMP
1. Disconnect security lamp connector.
2. Check voltage between indicator lamp terminal 1 and ground.
SEL342X
OK or NG
OK©Check harness for open or short between security indicator lamp and control unit.
NG©Check the following.
I7.5A fuse [No. 24, located in fuse block (J/B)]
IHarness for open or short between security indicator lamp and fuse
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-312

DOOR UNLOCK SENSOR CHECK=NBEL0123S06
1 CHECK DOOR UNLOCK SENSOR INPUT SIGNAL
Check voltage between smart entrance control unit terminals 26, 36 or 37 and ground.
SEL343X
Refer to wiring diagram in EL-304.
OK or NG
OK©Door unlock sensor is OK.
NG©GO TO 2.
2 CHECK DOOR UNLOCK SENSOR
1. Disconnect door unlock sensor connector.
2. Check continuity between door unlock sensor terminals.
SEL344X
OK or NG
OK©Check the following.
IDoor unlock sensor ground circuit
IHarness for open or short between smart entrance control unit and door unlock sensor
NG©Replace door unlock sensor.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-313

FRONT DOOR KEY CYLINDER SWITCH CHECK=NBEL0123S07
1 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK/UNLOCK SIGNAL)
Check voltage between smart entrance control unit terminals 30 or 41 and ground.
SEL312X
Refer to wiring diagram in EL-303.
OK or NG
OK©Door key cylinder switch LH is OK.
NG©GO TO 2.
2 CHECK DOOR KEY CYLINDER SWITCH
1. Disconnect door key cylinder switch LH connector.
2. Check continuity between door key cylinder switch LH terminals.
SEL313X
OK or NG
OK©Check the following.
IDoor key cylinder switch LH ground circuit
IHarness for open or short between smart entrance control unit and door key cylinder
switch LH
NG©Replace door key cylinder switch LH.
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-314

BACK DOOR KEY CYLINDER SWITCH CHECK=NBEL0123S08
1 CHECK BACK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK/UNLOCK SIGNAL)
Check voltage between smart entrance control unit terminals 30, 41 or 42 and ground.
SEL314X
Refer to wiring diagram in EL-304.
OK or NG
OK©Back door key cylinder switch is OK.
NG©GO TO 2.
2 CHECK BACK DOOR KEY CYLINDER SWITCH
1. Disconnect back door key cylinder switch connector.
2. Check continuity between back door key cylinder switch terminals.
SEL345X
OK or NG
OK©Check the following.
IBack door key cylinder switch ground circuit
IHarness for open or short between smart entrance control unit and back door key cyl-
inder switch
NG©Replace back door key cylinder switch.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-315