2001 INFINITI QX4 Factory Service Manual

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Page 1497 of 2395

INFINITI QX4 2001 Factory Service Manual 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.
SEL341

Page 1498 of 2395

INFINITI QX4 2001 Factory Service Manual 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-

Page 1499 of 2395

INFINITI QX4 2001 Factory Service Manual 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.
SEL

Page 1500 of 2395

INFINITI QX4 2001 Factory Service Manual 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 gro

Page 1501 of 2395

INFINITI QX4 2001 Factory Service Manual HORN ALARM CHECK=NBEL0123S09
1 CHECK HORN ALARM OPERATION
1. Disconnect smart entrance control unit connector.
2. Apply ground to smart entrance control unit terminal 19.
SEL346X
Refer to wiring diagr

Page 1502 of 2395

INFINITI QX4 2001 Factory Service Manual 4 CHECK HORN RELAY CIRCUIT
1. Disconnect horn relay connector.
2. Check voltage between terminals 3 and 5.
3. Check voltage between terminals 6 and 7.
SEL348X
OK or NG
OK©Check harness for open or sh

Page 1503 of 2395

INFINITI QX4 2001 Factory Service Manual THEFT WARNING HEADLAMP ALARM CHECK=NBEL0123S10
1 CHECK THEFT WARNING HEADLAMP ALARM OPERATION
1. Disconnect smart entrance control unit connector.
2. Apply ground to smart entrance control unit termin

Page 1504 of 2395

INFINITI QX4 2001 Factory Service Manual DescriptionNBEL0124The following systems are controlled by the smart entrance control unit.
IWarning chime
IRear window defogger and door mirror defogger timer
IPower door lock
IMulti-remote control s

DescriptionNBEL0124The following systems are controlled by the smart entrance control unit.
IWarning chime
IRear window defogger and door mirror defogger timer
IPower door lock
IMulti-remote control system
ITheft warning system
IInterior lamp timer
IElectric sunroof and power window timer
IHeadlamp battery saver
IBattery saver
For detailed description and wiring diagrams, refer to the relevant pages for the each system.
The smart entrance control unit receives data from the switches and sensors to control their corresponding
system relays and actuators.
INPUT/OUTPUTNBEL0124S01
System Input Output
Power door lockDoor lock and unlock switch LH and RH
Key switch (Insert)
Door switches
Door key cylinder switchesDoor lock actuator
Multi-remote controlKey switch (Insert)
Ignition switch (ACC)
Door switches
Front door unlock sensor LH
Door lock and unlock switch LH
Remote controller signalHorn relay
Headlamp relay (LH and RH)
Interior lamp
Multi-remote control relay
Door lock actuator
Warning chimeKey switch (Insert)
Ignition switch (ON)
Lighting switch (1st)
Seat belt switch
Front door switch LHWarning chime (located in smart entrance
control unit)
Rear window defogger and
door mirror defogger timerIgnition switch (ON)
Rear window defogger switchRear window defogger relay
Theft warningIgnition switch (ACC, ON)
Door switches
Hood switch
Glass hatch switch
Door key cylinder switches (lock/unlock)
Door unlock sensoresHorn relay
Headlamp relay (LH and RH)
Security indicator
Interior lamp timerDoor switches
Front door unlock sensor LH
Ignition switch (ON)
Key switch (Insert)Interior lamp
Electric sunroof and power
window timerFront door switches
Ignition switch (ON)Power window relay
Headlamp battery saver timerFront door switches
Ignition switch (ON)Headlamp battery saver control unit
Battery saverIgnition switch (ON)
Door switches
Driver's door unlock sensor
Key switch (Insert)Interior lamp
Luggage room lamp
Spot lamp
Vanity mirror illumination lamp
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
SMART ENTRANCE CONTROL UNIT
Description
EL-319

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