Infiniti QX4. Electrical System (2003 year). Manual — part 28
POWER SUPPLY AND GROUND CIRCUIT CHECK
=NBEL0397S03
1
CHECK MAIN POWER SUPPLY CIRCUIT FOR SMART ENTRANCE CONTROL UNIT
1. Disconnect smart entrance control unit harness connector.
2. Check voltage between smart entrance control unit harness connector M123 terminal 49 (G/R) or 51 (W/R) and ground.
SEL018Y
Refer to wiring diagram in EL-428.
OK or NG
OK
䊳
GO TO 2.
NG
䊳
Check the following.
쐌
40A fusible link (letter f, located in fuse and fusible link box)
쐌
7.5A fuse [No. 24, located in fuse block (J/B)]
쐌
M145 circuit breaker
쐌
Harness for open or short between smart entrance control unit and fuse
2
CHECK IGNITION SWITCH “ACC” CIRCUIT
1. Disconnect smart entrance control unit harness connector.
2. Check voltage between smart entrance control unit harness connector M122 terminal 26 (G/W) and ground while igni-
tion switch is “ACC”.
SEL019Y
Refer to wiring diagram in EL-428.
OK or NG
OK
䊳
GO TO 3.
NG
䊳
Check the following.
쐌
10A fuse [No. 10, located in fuse block (J/B)]
쐌
Harness for open or short between smart entrance control unit and fuse
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-437
3
CHECK GROUND CIRCUIT FOR SMART ENTRANCE CONTROL UNIT
Check continuity between smart entrance control unit harness connector M122 terminal 43 (B) or M123 terminal 64 (B)
and ground.
SEL020Y
Refer to wiring diagram in EL-428.
OK or NG
OK
䊳
Power supply and ground circuits are OK.
NG
䊳
Check ground harness.
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-438
DOOR SWITCH CHECK
=NBEL0397S04
1
CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check door switches (“DOOR SW-RR”, “DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CON-
SULT-II.
SEL024Y
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M121 terminals 1 (G/OR), 2 (Y) or 3 (R/L) and
ground.
SEL021YD
Refer to wiring diagram in EL-429.
OK or NG
OK
䊳
Door switch is OK.
NG
䊳
GO TO 2.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-439
2
CHECK DOOR SWITCH
1. Disconnect door switch harness connector.
2. Check the following.
쐌
Continuity between front door switch harness connector B9 (LH) or B68 (RH) terminals 1 and 2
쐌
Continuity between front door switch harness connector B9 (LH) or B68 (RH) terminal 3 and ground
쐌
Continuity between back door switch harness connector D208 terminals 1 and 2
쐌
Continuity between rear door switch harness connector B18 (LH) or B71 (RH) terminal 1 and ground
SEL287Y
OK or NG
OK
䊳
Check the following.
쐌
Door switch ground circuit (Front or back door) or door switch ground condition
쐌
Harness for open or short between smart entrance control unit and door switch
NG
䊳
Replace door switch.
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-440
KEY SWITCH (INSERT) CHECK
=NBEL0397S05
1
CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II
Check key switch (“KEY ON SW”) in “DATA MONITOR” mode with CONSULT-II.
SEL315W
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M122 terminal 25 (W/R) and ground.
SEL022Y
Refer to wiring diagram in EL-428.
OK or NG
OK
䊳
Key switch is OK.
NG
䊳
GO TO 2.
2
CHECK KEY SWITCH (INSERT)
Check continuity between key switch terminals 1 and 2.
SEL308X
OK or NG
OK
䊳
Check the following.
쐌
7.5A fuse [No. 24, located in fuse block (J/B)]
쐌
Harness for open or short between key switch and fuse
쐌
Harness for open or short between smart entrance control unit and key switch
NG
䊳
Replace key switch.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-441
DOOR LOCK/UNLOCK SWITCH LH CHECK
=NBEL0397S06
1
CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II
Check door lock/unlock switch (“LOCK SW DR/AS”/“UNLK SW DR/AS”) in “DATA MONITOR” mode with CONSULT-II.
SEL341W
Without CONSULT-II
1. Remove key from ignition switch.
2. Check the signal between smart entrance control unit harness connector M122 terminal 33 (BR) and ground with an
oscilloscope when door lock/unlock switch is turned “LOCK” or “UNLOCK”.
3. Make sure signals shown in the figure below can be detected during the first 10 sec. just after door lock/unlock switch
is turned to “LOCK” or “UNLOCK”.
SEL699Y
Refer to wiring diagram in EL-431.
OK or NG
OK
䊳
Door lock/unlock switch is OK.
NG
䊳
Check the following.
쐌
Ground circuit for each front power window switch
쐌
Harness for open or short between each front power window switch and smart
entrance control unit connector
If above systems are normal, replace the front power window switch.
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-442
HAZARD REMINDER CHECK
=NBEL0397S07
1
CHECK HAZARD INDICATOR
Check if hazard indicator flashes with hazard switch.
Does hazard indicator operate?
Yes
䊳
GO TO 2.
No
䊳
Check “hazard indicator” circuit.
2
CHECK HAZARD REMINDER OPERATION WITH CONSULT-II
With CONSULT-II
1. Select “ACTIVE TEST” in “MULTI REMOTE ENT” with CONSULT-II.
2. Select “HAZARD” and touch “ON”.
SEL347W
NOTE: If CONSULT-II is not available, skip this procedure and go to the next step.
OK or NG
OK
䊳
Hazard reminder operation is OK.
NG
䊳
Replace smart entrance control unit.
3
CHECK HAZARD REMINDER OPERATION WITHOUT CONSULT-II
Without CONSULT-II
Apply ground to smart entrance control unit harness connector M122 terminal 47 (GY/L) and 48 (GY/R).
SEL027Y
Refer to wiring diagram in EL-430.
OK or NG
OK
䊳
System is OK.
NG
䊳
Replace smart entrance control unit.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-443
HORN REMINDER CHECK
=NBEL0397S08
1
CHECK HORN
Check if horn sounds with horn switch.
Does horn operate?
Yes
䊳
GO TO 2.
No
䊳
Check horn circuit.
2
CHECK HORN REMINDER OPERATION WITH CONSULT-II
With CONSULT-II
1. Select “ACTIVE TEST” in “MULTI REMOTE ENT” with CONSULT-II.
2. Select “HORN” and touch “ON”.
SEL451Y
NOTE: If CONSULT-II is not available, skip this procedure and go to the next step.
OK or NG
OK
䊳
Horn reminder operation is OK.
NG
䊳
GO TO 4.
3
CHECK HORN REMINDER OPERATION WITHOUT CONSULT-II
Without CONSULT-II
1. Disconnect smart entrance control unit harness connector.
2. Apply ground to smart entrance control unit harness connector M122 terminal 42 (LG/B).
SEL028Y
Refer to wiring diagram in EL-430.
Does horn sound?
Yes
䊳
Replace smart entrance control unit.
No
䊳
GO TO 4.
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-444
4
CHECK HORN RELAY
Check horn relay.
OK or NG
OK
䊳
GO TO 5.
NG
䊳
Replace horn relay.
5
CHECK POWER SUPPLY FOR HORN RELAY
1. Disconnect horn relay harness connector.
2. Check voltage between horn relay harness connector E118 terminal 1 (G/B) and ground.
SEL326XA
OK or NG
OK
䊳
GO TO 6.
NG
䊳
Check the following.
쐌
7.5A fuse [No. 52, located in fuse block (J/B)]
쐌
Harness for open or short between horn relay and fuse
6
CHECK HORN RELAY CIRCUIT
1. Disconnect horn relay harness connector.
2. Check voltage between horn relay harness connector E118 terminals 3 (G/B) and 5 (R).
3. Check voltage between horn relay harness connector E118 terminals 6 (LG) and 7 (G).
SEL327XA
OK or NG
OK
䊳
Check harness for open or short between smart entrance control unit and horn relay.
NG
䊳
Check the following.
쐌
Harness for open or short between horn relay and fuse
쐌
Harness for open or short between horn relay and horns
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-445
INTERIOR ROOM LAMP OPERATION CHECK
=NBEL0397S09
1
CHECK ROOM INTERIOR LAMP
Check if the interior room lamp switch is in the “ON” position and the lamp illuminates.
Does interior room lamp illuminate?
Yes
䊳
GO TO 2.
No
䊳
Check the following.
쐌
Harness for open or short between smart entrance control unit and interior room lamp
쐌
Interior room lamp
2
CHECK INTERIOR ROOM LAMP OPERATION
With CONSULT-II
1. Select “ACTIVE TEST” in “MULTI REMOTE ENT” with CONSULT-II.
2. Select “INT/IGN ILLUM” and touch “ON”.
SEL312Y
Without CONSULT-II
Push unlock button of keyfob with all doors closed and driver’s door locked, and check voltage between smart entrance
control unit harness connector M122 terminal 31 (R/B) and ground.
SEL029Y
Refer to wiring diagram in EL-428.
OK or NG
OK
䊳
System is OK.
NG
䊳
Check harness for open or short between smart entrance control unit and interior room
lamp.
REMOTE KEYLESS ENTRY SYSTEM
Trouble Diagnoses (Cont’d)
EL-446
ID Code Entry Procedure
=NBEL0398
KEYFOB ID SET UP WITH CONSULT-II
NBEL0398S01
NOTE:
If a keyfob is lost, the ID code of the lost keyfob must be
erased to prevent unauthorized use. When the ID code of a
lost keyfob is not known, all keyfob ID codes should be
erased. After all ID codes are erased, the ID codes of all
remaining and/or new keyfob must be re-registered.
SEL670Y
1.
Turn ignition switch “OFF”.
2.
Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
the data link connector.
SKIA3098E
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
SEL398Y
5.
Touch “SMART ENTRANCE”.
If “SMART ENTRANCE” is not indicated, go to GI-42, “CON-
SULT-II Data Link Connector (DLC) Circuit”.
SEL751Y
6.
Touch “MULTI REMOTE ENT”.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
ID Code Entry Procedure
EL-447
SEL274W
7.
Touch “WORK SUPPORT”.
SEL424Y
8.
The items are shown on the figure at left can be set up.
쐌
“REMO CONT ID CONFIR”
Use this mode to confirm if a keyfob ID code is registered or
not.
쐌
“REMO CONT ID REGIST”
Use this mode to register a keyfob ID code.
NOTE:
Register the ID code when keyfob or smart entrance control
unit is replaced, or when additional keyfob is required.
쐌
“REMO CONT ID ERASUR”
Use this mode to erase a keyfob ID code.
Refer to the EL-433, “WORK SUPPORT” in “CONSULT-II Applica-
tion Items” for the following items.
쐌
“MULTI ANSWER BACK SET”
쐌
“AUTO LOCK SET”
쐌
“PANIC ALARM SET”
쐌
“TRUNK OPENER”
쐌
“PW DOWN SET”
NOTE:
Even though TRUNK OPENER is actually displayed on the CON-
SULT-II screen, it is not equipped, therefore, they cannot be acti-
vated.
REMOTE KEYLESS ENTRY SYSTEM
ID Code Entry Procedure (Cont’d)
EL-448
KEYFOB ID SET UP WITHOUT CONSULT-II
NBEL0398S02
SEL170YA
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
ID Code Entry Procedure (Cont’d)
EL-449
NOTE:
쐌
If a keyfob is lost, the ID code of the lost keyfob must be erased
to prevent unauthorized use. A specific ID code can be erased
with CONSULT-II. However, when the ID code of a lost keyfob
is not known, all keyfob ID codes should be erased. After all
ID codes are erased, the ID codes of all remaining and/or new
keyfob must be re-registered.
To erase all ID codes in memory, register one ID code (keyfob)
four times. After all ID codes are erased, the ID codes of all
remaining and/or new keyfob must be re-registered.
쐌
When registering an additional keyfob, the existing ID codes in
memory may or may not be erased. If four ID codes are stored
in memory, when an additional code is registered, only the
oldest code is erased. If less than four ID codes are stored in
memory, when an additional ID code is registered, the new ID
code is added and no ID codes are erased.
쐌
If you need to activate more than two additional new keyfob,
repeat the procedure “Additional ID code entry” for each new
keyfob.
쐌
Entry of maximum four ID codes is allowed. When more than
four ID codes are entered, the oldest ID code will be erased.
쐌
Even if the same ID code that is already in the memory is input,
the same ID code can be entered. The code is counted as an
additional code.
REMOTE KEYLESS ENTRY SYSTEM
ID Code Entry Procedure (Cont’d)
EL-450
Keyfob Battery Replacement
NBEL0399
SEL485Y
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REMOTE KEYLESS ENTRY SYSTEM
Keyfob Battery Replacement
EL-451
Component Parts and Harness Connector
Location
NBEL0400
SEL677YA
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Component Parts and Harness Connector Location
EL-452
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