2004 INFINITI QX56 lighting sys

BL-86
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: August 20072004 QX56
Terminals and Reference Value for IPDM E/REIS002SJ
*1: when horn reminder is ON.
*2: L/W is for USA.
*3: Y is for Canada.
CONSULT-II Function (BCM)EIS002SK
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
Terminal Wire
ColorItem ConditionVoltage (V)
(Approx.)
38 B Ground — 0
39 W CAN-H — —
40 R CAN-L — —
41 Y/B Hood switchHood closed OFF Battery voltage
Hood open ON 0V
45 G/W Horn relayWhen doors locks are operated
using keyfob (OFF → ON) *1Battery voltage → 0V
52 L Headlamp low (LH)Ignition
SW ONLighting
switch
2ND posi-
tionOFF 0V
ON Battery voltage
54 R/Y Headlamp low (RH)Ignition
SW ONLighting
switch
2ND posi-
tionOFF 0V
ON Battery voltage
55 G Headlamp high (LH)Ignition
SW ONLighting
switch
HIGH or
PA S S
positionOFF 0V
ON Battery voltage
56L/W *2
Y *3Headlamp high (RH)Ignition
SW ONLighting
switch
HIGH or
PA S S
positionOFF 0V
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.

BL-100
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: August 20072004 QX56
Vehicle Security Horn Alarm CheckEIS002SR
1. CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
Yes >> Check harness for open or short between IPDM E/R and horn relay.
No >> Check horn circuit. Refer to WW-56, "
HORN" .
Vehicle Security Headlamp Alarm Check EIS002SS
1. CHECK VEHICLE SECURITY HEADLAMP ALARM OPERATION
Check if headlamps operate with lighting switch.
Do headlamps come on when turning switch ON?
Yes >> Headlamp alarm is OK.
No >> Check headlamp system. Refer to LT- 6 , "
HEADLAMP (FOR USA)" or LT-34, "HEADLAMP (FOR
CANADA) - DAYTIME LIGHT SYSTEM -" .
Door Lock/Unlock Switch Check EIS002ST
1. CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
Check if power door lock operates with door lock/unlock switch.
Do doors lock/unlock when using each door lock/unlock switch?
Yes >> Door lock/unlock switch is OK.
No >> Refer to BL-34, "
Door Lock/Unlock Switch Check" .

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-139
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Revision: August 20072004 QX56
System DescriptionEIS002TM
IVIS (Infiniti Vehicle Immobilizer System-NATS) has the following immobilizer functions:

Since only IVIS (NATS) ignition keys, whose IDs have been registered into the ECM and BCM, allow the
engine to run, operation of a stolen vehicle without an IVIS (NATS) registered key is prevented by IVIS
(NATS).
IVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of IVIS
(NATS).

All of the originally supplied ignition key IDs have been IVIS (NATS) registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the IVIS (NATS) com-
ponents.

The security indicator blinks when the ignition switch is in OFF or ACC position. IVIS (NATS) warns out-
siders that the vehicle is equipped with the anti-theft system.

When IVIS (NATS) detects a malfunction, the security indicator lamp lights up while ignition key is in the
ON position.

IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) igni-
tion key IDs must be carried out using CONSULT-II hardware and CONSULT-II IVIS (NATS) software.
When IVIS (NATS) initialization has been completed, the ID of the inserted ignition key is automatically
IVIS (NATS) registered. Then, if necessary, additional registration of other IVIS (NATS) ignition key IDs
can be carried out.
Regarding the procedures of IVIS (NATS) initialization and IVIS (NATS) ignition key ID registration, refer
to CONSULT-II Operation Manual NATS-IVIS/NVIS.

When servicing a malfunction of the IVIS (NATS) (indicated by lighting up of Security Indicator
Lamp) or registering another IVIS (NATS) ignition key ID, it may be necessary to re-register origi-
nal key identification. Therefore, be sure to receive ALL KEYS from vehicle owner.
System CompositionEIS0 02 T N
The immobilizer function of the IVIS (NATS) consists of the following:

NATS ignition key

NATS antenna amp. located in the ignition key cylinder

Body control module (BCM)

Engine control module (ECM)

Security indicator
NOTE:
The communication between ECM and BCM uses the CAN communication system.
PIIA1121E

BL-146
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: August 20072004 QX56
Trouble DiagnosesEIS002TT
SYMPTOM MATRIX CHART 1
Self-diagnosis related item
*: When IVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the “ON” position.SymptomDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.Diagnostic Procedure
(Reference page)System
(Malfunctioning part or
mode)Reference Part No. Of
Illustration On System
Diagram

Security indicator
lighting up*

Engine cannot be
startedCHAIN OF ECM-IMMU
[P1612]PROCEDURE 1
(BL-148
)In rare case, “CHAIN OF
ECM-IMMU” might be
stored during key regis-
tration procedure, even if
the system is not mal-
functioning.—
Open circuit in battery
voltage line of BCM cir-
cuitC1
Open circuit in ignition
line of BCM circuitC2
Open circuit in ground
line of BCM circuitC3
Open or short circuit
between BCM and ECM
communication lineC4
ECM B
BCM A
DIFFERENCE OF KEY
[P1615]PROCEDURE 2
(BL-149
)Unregistered key D
BCM A
CHAIN OF IMMU-KEY
[P1614]PROCEDURE 5
(BL-152
)Malfunction of key ID
chipE5
Communication line
between ANT/ AMP and
BCM:
Open circuit or short cir-
cuit of battery voltage
line or ground lineE1
E2
Open circuit in power
source line of ANT/ AMP
circuitE3
Open circuit in ground
line of ANT/ AMP circuitE4
NATS antenna amp. E6
BCM A
ID DISCORD, IMM-ECM
[P1611]PROCEDURE 3
(BL-150
)System initialization has
not yet been completed.F
ECM B
LOCK MODE
[P1610]PROCEDURE 4
(BL-151
)LOCK MODE D
Security indicator light-
ing up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(BL-145
)Engine trouble data and
IVIS (NATS) trouble data
have been detected in
ECM—

COMBINATION METERS
DI-5
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Revision: August 20072004 QX56
COMBINATION METERSPFP:24814
System DescriptionEKS007DL
UNIFIED METER CONTROL UNIT

Speedometer, odometer, tachometer, fuel gauge, oil pressure gauge, voltage meter, A/T temperature
gauge, and water temperature gauge are controlled by the unified meter control unit, which is built into the
combination meter.

Warning indicators are controlled by signals drawn from the CAN communication system, BCM (body con-
trol module), and components connected directly to the combination meter.

Digital meter is adopted for odometer/trip meters*, as well as the A/T position indicator display.
*The record of the odometer is kept even if the battery cable is disconnected.

Odometer/trip meters and A/T indicator segments can be checked in diagnosis mode.

Meters/gauges can be checked in diagnosis mode.
Illumination control
The unified meter control unit outputs the speedometer, odometer/trip meters, tachometer, oil pressure gauge,
voltage meter, A/T indicator, A/T temperature gauge, fuel and temperature gauge lighting when the ignition
switch is turned on. When the lighting switch is turned on, the illumination control switch can be used to adjust
the brightness of the combination meter illumination and the odometer/trip meters and meter illumination.
When the ignition switch is turned from the OFF to the ON position, the combination meter dial lighting will
remain off for 0.7 seconds. For additional combination meter illumination control information, refer to LT-152,
"System Description" .

DI-44
WARNING CHIME
Revision: August 20072004 QX56
System DescriptionEKS007EF
FUNCTION
Power is supplied at all times

through 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70, and

through 10A fuse [No. 19, located in the fuse block (J/B)]

to key switch and key lock solenoid terminal 3.
With ignition switch in ON or START position, power is supplied

through 10A fuse [No. 59, located in the fuse and relay box)

to BCM terminal 38.
Ground is supplied

to BCM terminal 67

through body grounds M57, M61, and M79.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime are required at the same
time, the priorities for each chime are the following.
1. Light warning chime
2. Ignition key warning chime
3. Seat belt warning chime
IGNITION KEY WARNING CHIME
With the key inserted in the ignition switch, the ignition switch in OFF position, and the driver's door open, the
warning chime will sound.
Power is supplied

through key switch and key lock solenoid terminal 4

to BCM terminal 37.
Ground is supplied

to BCM terminal 47

through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter via CAN
communication lines. When the combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch, the driver's door open, and the lighting switch (part of the com-
bination switch) in 1st or 2nd position, the warning chime will sound. [Except when headlamp battery saver
control operates (5 minutes after ignition switch is turned to OFF or ACC position) and headlamps do not illu-
minate.]
Signal is supplied

from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10

to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position. Refer to BCS-3, "
COMBINATION SWITCH READING
FUNCTION" .
Ground is supplied

to BCM terminal 47

through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to combination meter CAN communi-
cation lines. When the combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
When the ignition switch is turned ON with the seat belt unfastened (seat belt buckle switch LH unfastened),
warning chime will sound for approximately 6 seconds.

INDEX FOR DTC
EC-9
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EC
Revision: August 20072004 QX56CMP SEN/CIRC-B1 P0340 0340 2×EC-261
CTP LEARNING P1225 1225 2 —EC-420
CTP LEARNING P1226 1226 2 —EC-422
CYL 1 MISFIRE P0301 0301 2×EC-243
CYL 2 MISFIRE P0302 0302 2×EC-243
CYL 3 MISFIRE P0303 0303 2×EC-243
CYL 4 MISFIRE P0304 0304 2×EC-243
CYL 5 MISFIRE P0305 0305 2×EC-243
CYL 6 MISFIRE P0306 0306 2×EC-243
CYL 7 MISFIRE P0307 0307 2×EC-243
CYL 8 MISFIRE P0308 0308 2×EC-243
D/C SOLENOID/CIRC P1762 1762 1×AT- 1 5 7
D/C SOLENOID FNCTN P1764 1764 1×AT- 1 6 0
ECM P0605 0605 1 or 2× or —EC-351
ECM BACK UP/CIRCUIT P1065 1065 2×EC-361
ECT SEN/CIRCUIT P0117 0117 1×EC-165
ECT SEN/CIRCUIT P0118 0118 1×EC-165
ECT SENSOR P0125 0125 1×EC-178
ENG OVER TEMP P1217 1217 1×EC-410
ETC ACTR P1121 1121 1×EC-365
ETC FUNCTION/CIRC P1122 1122 1×EC-367
E T C M O T P 11 2 8 11 2 8 1×EC-378
E T C M O T P W R P 11 2 4 11 2 4 1×EC-373
E T C M O T P W R P 11 2 6 11 2 6 1×EC-373
EVAP GROSS LEAK P0455 0455 2×EC-316
EVAP PURG FLOW/MON P0441 0441 2×EC-271
EVAP SMALL LEAK P0442 0442 2×EC-276
EVAP SYS PRES SEN P0451 0451 2×EC-299
EVAP SYS PRES SEN P0452 0452 2×EC-302
EVAP SYS PRES SEN P0453 0453 2×EC-308
EVAP VERY SML LEAK P0456 0456 2×EC-324
FR/B SOLENOID FNCT P1759 1759 1×AT- 1 5 4
FR/B SOLENOID/CIRC P1757 1757 1×AT- 1 5 1
FTT SEN/CIRCUIT P0182 0182 2×EC-231
FTT SEN/CIRCUIT P0183 0183 2×EC-231
FTT SENSOR P0181 0181 2×EC-225
FUEL LEV SEN SLOSH P0460 0460 2×EC-334
FUEL LEVEL SENSOR P0461 0461 2×EC-336
FUEL LEVL SEN/CIRC P0462 0462 2×EC-338
FUEL LEVL SEN/CIRC P0463 0463 2×EC-338
FUEL SYS-LEAN-B1 P0171 0171 2×EC-208
FUEL SYS-LEAN-B2 P0174 0174 2×EC-208
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-10Revision: August 2007
INDEX FOR DTC
2004 QX56
FUEL SYS-RICH-B1 P0172 0172 2×EC-217
FUEL SYS-RICH-B2 P0175 0175 2×EC-217
HLR/C SOL FNCTN P1769 1769 1×AT-166
HLR/C SOL/CIRC P1767 1767 1×AT-163
HO2S2 (B1) P0138 0138 2×EC-186
HO2S2 (B1) P0139 0139 2×EC-196
HO2S2 (B1) P1146 1146 2×EC-383
HO2S2 (B1) P1147 1147 2×EC-395
HO2S2 (B2) P0158 0158 2×EC-186
HO2S2 (B2) P0159 0159 2×EC-196
HO2S2 (B2) P1166 1166 2×EC-383
HO2S2 (B2) P1167 1167 2×EC-395
HO2S2 HTR (B1) P0037 0037 2×EC-138
HO2S2 HTR (B1) P0038 0038 2×EC-138
HO2S2 HTR (B2) P0057 0057 2×EC-138
HO2S2 HTR (B2) P0058 0058 2×EC-138
I/C SOLENOID/CIRC P1752 1752 1×AT-145
I/C SOLENOID FNCTN P1754 1754 1×AT-148
IAT SEN/CIRCUIT P0112 0112 2×EC-161
IAT SEN/CIRCUIT P0113 0113 2×EC-161
IAT SENSOR P0127 0127 2×EC-181
ISC SYSTEM P0506 0506 2×EC-342
ISC SYSTEM P0507 0507 2×EC-344
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-250
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-250
KNOCK SEN/CIRC-B2 P0332 0332 2 —EC-250
KNOCK SEN/CIRC-B2 P0333 0333 2 —EC-250
L/PRESS SOL/CIRC P0745 0745 2×AT-124
LC/B SOLENOID FNCT P1774 1774 1×AT-172
LC/B SOLENOID/CIRC P1772 1772 1×AT-169
MAF SEN/CIRCUIT P0101 0101 1×EC-146
MAF SEN/CIRCUIT P0102 0102 1×EC-154
MAF SEN/CIRCUIT P0103 0103 1×EC-154
MULTI CYL MISFIRE P0300 0300 2×EC-243
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —BL-138
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
P-N POS SW/CIRCUIT P1706 1706 2×EC-546
PNP SW/CIRC P0705 0705 2×AT-109
PURG VOLUME CONT/V P0444 0444 2×EC-285
PURG VOLUME CONT/V P0445 0445 2×EC-285
PURG VOLUME CONT/V P1444 1444 2×EC-496
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3