2005 INFINITI QX4 battery

REMOTE KEYLESS ENTRY SYSTEM
BL-65
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Revision: October 20052005 QX56
4. CHECK BACK DOOR SWITCH GROUND
Check continuity between back door latch connector terminal 8 and
ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.
Keyfob Battery and Function CheckEIS008QB
1. CHECK KEYFOB BATTERY
Remove battery and measure voltage across battery positive and negative terminals, (+) and (−).
NOTE:
Keyfob does not function if battery is not set correctly.
OK or NG
OK >> GO TO 2.
NG >> Replace battery.8 - Ground : Continuity should exist.
LIIA0828E
Voltage : 2.5V - 3.0V
SEL237W

BL-68
REMOTE KEYLESS ENTRY SYSTEM
Revision: October 20052005 QX56
ACC Power CheckEIS008QD
1. CHECK ACC POWER
With CONSULT-II
Check "ACC ON SW" in DATA MONITOR mode with CONSULT–II. Refer to BL-27, "
DATA MONITOR" .
Without CONSULT-II
Check voltage between BCM connector M18 terminal 11 and
ground.
OK or NG
OK >> ACC power circuit is OK.
NG >> Check the following:

10A fuse [No. 4, located in fuse block (J/B)]

Harness for open or short.
IPDM E/R Operation CheckEIS008QE
1. CHECK IPDM E/R INPUT VOLTAGE
Check voltage between IPDM E/R connector E122 terminal 45 and
ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
Monitor Item Condition
ACC ON SWIgnition switch position ACC : ON
Ignition switch position OFF : OFF
PIIA3367E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M18 11 GroundACC Battery voltage
OFF 0
PIIA7002E
ConnectorTe r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
E122 45 Ground Battery voltage
LIIA1053E

BL-74
REMOTE KEYLESS ENTRY SYSTEM
Revision: October 20052005 QX56
NOTE:

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 con-
troller ID codes should be erased. After all ID codes are erased, the ID codes of all remaining and/or new
keyfobs must be re-registered.
To erase all ID codes in memory, register one ID code (keyfob) five times. After all ID codes are erased,
the ID codes of all remaining and/or new keyfobs must be re-registered.

When registering an additional keyfob, the existing ID codes in memory may or may not be erased. If five
ID codes are stored in memory, when an additional code is registered, only the oldest code is erased. If
less than five 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.

If you need to activate more than two additional new keyfobs, repeat the procedure “Additional ID code
entry” for each new keyfob.

Entry of maximum five ID codes is allowed. When more than five ID codes are entered, the oldest ID code
will be erased.

Even if 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.
Keyfob Battery ReplacementEIS008QK
LIIA1514E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: October 20052005 QX56
Terminals and Reference Value for BCMEIS008QQ
Te r m i n a l Wire
ColorItem ConditionVoltage (V)
(Approx.)
11 O Ignition switch (ACC or ON) Ignition switch (ACC or ON position) Battery voltage
12 R/L Front door switch RH Door open (ON) → Door close (OFF) 0 → Battery voltage
13 GR Rear door switch RH Door open (ON) → Door close (OFF) 0 → Battery voltage
22 W/V BusWhen ignition switch is ON or power
window timer operates
23 G/OCombination meter (security
indicator lamp)Goes off → Illuminates (Every 2.4
seconds) Battery voltage → 0
39 L CAN-H — —
40 P CAN-L — —
42 GR Glass hatch ajar switchGlass hatch open (ON) → Glass
hatch close (OFF)Battery voltage → 0
43 R/BBack door latch (door ajar
switch)Door open (ON) → Door close (OFF) 0 → Battery voltage
47 SB Front door switch LH Door open (ON) → Door close (OFF) 0 → Battery voltage
48 R/Y Rear door switch LH Door open (ON) → Door close (OFF) 0 → Battery voltage
57 Y/R Battery power supply — Battery voltage
67 B Ground — 0
70 W/B Battery power supply — Battery voltage
PIIA2344E

BL-86
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: October 20052005 QX56
Terminals and Reference Value for IPDM E/REIS008QR
1*: when horn reminder is ON.
2*: L/W is for USA.
3*: Y is for Canada.
CONSULT-II Function (BCM)EIS008QS
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
Terminal Wire
ColorItem ConditionVoltage (V)
(Approx.)
38 B Ground — —
39 L CAN-H — —
40 P CAN-L — —
41 Y/B Hood switchHood closed OFF 0
Hood open ON Battery voltage
45 G/W Horn relayWhen doors locks are operated
using keyfob (OFF → ON) *1Battery voltage → 0V
52 L Headlamp low (LH)Lighting switch 2ND
positionOFF 0
ON Battery voltage
54 R/Y Headlamp low (RH)Lighting switch 2ND
positionOFF 0
ON Battery voltage
55 G Headlamp high (LH)Lighting switch HIGH
or PASS positionOFF 0
ON Battery voltage
56L/W *2
Y *3Headlamp high (RH)Lighting switch HIGH
or PASS positionOFF 0
ON Battery voltage
59 B Ground — 0
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: October 20052005 QX56
Symptom ChartEIS008QV
*1: Make sure the system is in the armed phase.SYMPTOM PROCEDURE Diagnostic procedure
1Vehicle security
system cannot be
set by ····Door switch Refer to BL-92, "
Door Switch Check" .
Lock/unlock switch Refer to BL-98, "
Door Lock/Unlock Switch Check" .
Door outside keyRefer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
BCMIf the above systems are “OK”, replace BCM. Refer to BCS-20, "
Removal
and Installation of BCM" .
2Security indicator
does not turn
“ON”.Combination meter Refer to BL-95, "
Combination Meter (Security Indicator Lamp) Check" .
BCMIf the above systems are “OK”, replace BCM. Refer to BCS-20, "
Removal
and Installation of BCM" .
3*1 Vehicle secu-
rity system does
not alarm when
····Any door, hood or glass hatch
is opened.Refer to BL-92, "
Door Switch Check" .
Refer to BL-94, "
Hood Switch Check" .
If the above systems are “OK”, replace BCM. Refer to BCS-20, "
Removal
and Installation of BCM" .
4Vehicle security
alarm does not
activate.Horn alarmRefer to BL-98, "
Vehicle Security Horn Alarm Check" .
If the above systems are “OK”, check horn system.
Refer to WW-58, "
HORN" .
Headlamp alarmRefer to BL-98, "
Vehicle Security Headlamp Alarm Check" .
If the above systems are “OK”, replace BCM. Refer to BCS-20, "
Removal
and Installation of BCM" .
5Vehicle security
system cannot be
canceled by ····Door outside keyRefer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
If the above systems are “OK”, check main power window and door lock/
unlock switch.
KeyfobCheck remote keyless entry function. Refer toBL-65, "
Keyfob Battery and
Function Check" .
If the above systems are “OK”, replace BCM. Refer to BCS-20, "
Removal
and Installation of BCM" .

BL-92
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: October 20052005 QX56
Door Switch CheckEIS008QW
1. CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-II
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW", "TRNK OPN MNTR") in DATA MONITOR mode with CONSULT–II.Refer to BL-27, "
DATA MONITOR" .

When doors are open:

When doors are closed:
Without CONSULT-II
Check voltage between BCM connector M18 or M19 terminals 12,
13, 42, 43, 47, 48 and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
BACK DOOR SW : ON
TRNK OPN MNTR : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
BACK DOOR SW : OFF
TRNK OPN MNTR : OFF
WIIA0466E
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M19Glass hatch
ajar switch42
GroundOpen
↓
Closed0
↓
Battery voltage back door
latch (door
ajar switch)43
Front door
switch LH47
Rear door
switch LH48
M18Front door
switch RH12
Rear door
switch RH13
LIIA1451E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: October 20052005 QX56
3. CHECK HOOD SWITCH
1. Turn ignition switch OFF.
2. Disconnect hood switch connector.
3. Check continuity between hood switch terminals 1 and 2.
OK or NG
OK >> Check the following:

Hood switch ground circuit.

Harness for open or short between hood switch and
IPDM E/R
NG >> Replace hood switch.
Combination Meter (Security Indicator Lamp) CheckEIS008QY
1. SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-II
Check "THEFT IND” in "ACTIVE TEST" mode with CONSULT-II.
Without CONSULT-II
1. Disconnect BCM.
2. Check voltage between BCM harness connector M18 terminal
23 and ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2. SECURITY INDICATOR LAMP CHECK
Check security indicator lamp condition.
Refer to DI-5, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 3.
NG >> Replace combination meter (security indicator lamp). Refer to DI-8, "
Combination Meter" .
Terminals Condition Continuity
1- 2Pressed No
Released Yes
LIIA0040E
LIIA0044E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M18 23 GroundON 0
OFFBattery volt-
age
LIIA0523E