BL-192
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Terminal and Reference Value for BCM
INFOID:0000000001327929
*: With Intelligent Key system
CONSULT-III FunctionINFOID:0000000001327930
CONSULT-III DIAGNOSTIC TEST MODE FUNCTION
NATS SELF-DIAGNOSTIC RESULT ITEM CHART
32 R/B Steering lock unit com-
munication signal Output LOCKPress ignition knob with In-
telligent Key inside vehicle.
Other than the above 5
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna amp. Input/
Output —
Ignition knob OFF
→ ON po-
sition Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0
25 BR NATS antenna amp. Input/
Output —Ignition knob or switch OFF
→
ON position Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch Input — Insert mechanical key into ig-
nition key cylinder
Battery voltage
Remove mechanical key
from ignition key cylinder 0
38 W/L Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
39 L CAN-H Input/
Output —— —
40 P CAN-L Input/
Output —— —
42 L/R Power source (Fuse) Input — — Battery voltage
49 B Ground — — — 0
52 B Ground — — — 0
55 G Power source (Fuse) Input — — Battery voltage
CONSULT-III DIAGNOSTIC TEST MODE Description
C/U INITIALIZATION When replacing any of the following three components, C/U initialization is necessary.
[IVIS (NATS) ignition key/ BCM/ ECM]
SELF- DIAGNOSTIC RESULTS Detected items (screen terms) are as shown in the chart.
PIN READ Individual control unit number can be read.
For future information,
refer to operation manual NATS-IVIS/NVIS
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-195
< SERVICE INFORMATION >
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Trouble Diagnosis Symptom ChartINFOID:0000000001327932
*: When IVIS (NATS) detects trouble, the security indica tor lights up while electronic key is in the “ON” position.
Security Indicator InspectionINFOID:0000000001327933
*: CONSULT-III self-diagnostic results display screen “no malfunction is detected”.
Diagnosis Procedure 1INFOID:0000000001327934
Self-diagnostic results:
“CHAIN OF ECM-IMMU” is display on CONSULT-III screen
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diag-
nosis of malfunction system indicated “SEL F-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000
CAN Communication Circuit".
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU” is displayed on the screen?
Does CONSULT-III screen display as shown in figure?
SYMPTOM Displayed “SELF-DIAG
RESULTS” on CON- SULT-III screen. DIAGNOSTIC PROCE-
DURE SYSTEM (Malfunctioning part or mode)
Security indicator lighting up*
Engine hard to start CHAIN OF ECM-IMMU
[P1612] Refer to
BL-195, "
Diag-
nosis Procedure 1".Open circuit in battery voltage line to BCM (NATS
IMMU) circuit
Open circuit in ignition
line to BCM (NATS IMMU) cir-
cuit
Open circuit in ground line to BCM (NATS IMMU) cir-
cuit
Open or short circuit between BCM (NATS IMMU)
and ECM communication line.
ECM
BCM (NATS IMMU)
DIFFERENCE OF KEY [P1615] Refer to
BL-197, "
Diag-
nosis Procedure 2".Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY [P1614] Refer to
BL-198, "
Diag-
nosis Procedure 5".Open or short circuit between BCM (NATS IMMU)
and NATS antenna amp.
Malfunction of key ID chip
BCM (NATS IMMU)
Antenna amp.
ID DISCORD, IMM-ECM [P1611] Refer to
BL-197, "
Diag-
nosis Procedure 3"
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] Refer to
BL-197, "
Diag-
nosis Procedure 4".LOCK MODE
MIL staying ON
Security indicator lighting up* DON'T ERASE BEFORE
CHECKING ENG DIAG Refer to
BL-194, "
Diag-
nosis Procedure".Engine trouble data and IVIS (NATS) trouble data
have been detected in ECM
SYMPTOM
SYSTEM
(Malfunctioning part or mode) DIAGNOSTIC PROCEDURE
Security indicator does not operate* Security indicator
Refer to BL-200, "
Diagnosis
Procedure 6".
Open circuit between Fuse and BCM (NATS IM-
MU)
Continuation of initialization mode
BCM (NATS IMMU)
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BL-196
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.CHECK POWER SUPPLY CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector M4.
3. Check voltage between BCM connector M4 terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following. 50A fusible link [Letter M, located in fuse block (J/B)]
15A fuse [No.22, located in fuse block (J/B)]
Harness for open or short between fusible link or fuse
and BCM.
3.CHECK IGNITION SWITCH ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3 terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. 15A fuse [No.1, located in fuse block (J/B)]
Harness for open or short between fuse and BCM.
4.CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check continuity between BCM connecto r M4 terminals 49 (B), 52 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between BCM and ground.
5.REPLACE BCM
1. Replace BCM.
2. Perform initialization with CONSULT-III. For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> BCM is malfunctioning. Replace BCM.
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NO >> ECM is malfunctioning. 42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6143E
38 (W/L) – Ground : Battery voltage
PIIA6144E
49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA5084E
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-199
< SERVICE INFORMATION >
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NG >> Reinstall NATS antenna amp. correctly.
3.CHECK KEY ID CHIP
Start engine with another registered ignition key or mechanical key.
Does the engine start?
YES >> Ignition key or mechanical key ID chip is malfunctioning. Replace the ignition key or mechanical key.
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS–IVIS/NVIS”.
NO >> GO TO 4.
4.CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-III or
tester.
OK or NG
OK >> GO TO 5.
NG >> Check harness for open or short between NATS antenna amp. and fuse.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector M25 terminal 2 (G/B) and ground with analogue tester.
OK or NG
OK >> GO TO 6.
NG >> Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M 25 terminal 4 (BR) and ground with analogue tester.
OK or NG
OK >> GO TO 7.
NG >> Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechani
cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechani cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E
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BL-200
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
7.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between NATS antenna am p. connector M25 terminal 3 (B) and ground.
OK or NG
OK >> NATS antenna amp. is malfunctioning.
NG >> Check harness for open or short between NATS antenna amp. and ground.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CON-
SULT-III Operation Manual NATS–IVIS/NVIS”.
Diagnosis Procedure 6INFOID:0000000001327939
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1.CHECK FUSE
Check 10A fuse [No.19, located in the fuse block (J/B)] NOTE:
Refer to BL-185, "
Component Parts and Harness Connector Location".
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2.CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse [No.19, located in the fuse block (J/B)]
2. Start engine and turn ignition switch OFF.
3. Check the security indicator lamp lights up.
OK or NG
OK >> Inspection END.
NG >> GO TO 3.
3.CHECK SECURITY INDICATOR LA MP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp connector.
2. Check voltage between security indicator lamp connector M38 terminal 1 (R/W) and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and security indicator lamp.
4.CHECK BCM FUNCTION
1. Connect security indicator lamp connector.
2. Disconnect BCM connector M3. 3 (B) – Ground : Continuity should exist.
PIIA6148E
Security indicator lamp should light up.
1 (R/W) – Ground : Battery voltage
PIIA6149E
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TROUBLE DIAGNOSIS FOR SYSTEMBRC-37
< SERVICE INFORMATION > [VDC/TCS/ABS]
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Check ABS actuator and electric unit (control unit) ground circuit.
OK or NG
OK >> Perform ABS actuator and elec tric unit (control unit) self-
diagnosis again.
NG >> Repair or replace harness or connectors.
5.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) POWER SUPPLY CIRCUIT (2)
1. Check fuse 10 A (terminal 4) and 30 A (terminal 32).
2. Turn ignition switch OFF and check continuity between battery positive terminal and ABS actuator and electric unit (control unit)
harness connector E56.
OK or NG
OK >> Check for non-standard conditions in battery (terminal looseness, low voltage, etc.) and alternator.
NG >> Replace fuse 10 A or 30 A.
Open or short in harness.
DTC C1110 CONTROLLER FAILUREINFOID:0000000001327679
INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES >> Replace ABS actuator and electric unit (c ontrol unit). Perform the self-diagnosis again.
NO >> INSPECTION END
D T C C 1111 P U M P M O T O RINFOID:0000000001327684
INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS (1)
Check the self-diagnostic results.
Is the above displayed in the self-diagnostic display items?
YES >> GO TO 2.
NO >> Inspection is completed.
2.CHECK SELF-DIAGNOSTIC RESULTS (2)
ABS actuator and electric unit (control unit) Ground Continuity
16 — Yes
SFIA1434E
ABS actuator and electric unit
(control unit) Battery positive terminal Continuity
4, 32 — Yes
SFIA1435E
Self-diagnostic results
CONTROLLER FAILURE VARIANT CODING
Self-diagnostic results PUMP MOTOR
ACTUATOR RLY
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COMBINATION METERSDI-5
< SERVICE INFORMATION >
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COMBINATION METERS
System DescriptionINFOID:0000000001328433
UNIFIED METER CONTROL UNIT
Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit, which is built into the comb ination meter. Unified meter control unit receives sig-
nals from unified meter and A/C amp.
Warning lamp and indicator lamp of combination meter are controlled by signals drawn from the unified meter and A/C amp.
Odo/trip meter, A/T indicator and ICC system disp lay segments can be checked in self-diagnosis mode.
Meters/gauges can be checked in self-diagnosis mode.
UNIFIED METER AND A/C AMP.
Refer to DI-26, "System Description" in “UNIFIED METER AND A/C AMP”.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
through 10A fuse [No. 19, located in the fuse block (J/B)]
to combination meter terminal 8, and
to unified meter and A/C amp. terminal 21.
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 14, located in the fuse block (J/B)]
to combination meter terminal 7,
through 10A fuse [No. 12, located in the fuse block (J/B)]
to unified meter and A/C amp. terminal 22.
With the ignition switch in the ACC or ON position, power is supplied
through 10A fuse [No. 6, located in the fuse block (J/B)]
to combination meter terminal 4,
through 15A fuse [No. 10, located in the fuse block (J/B)], and
through 15A fuse [No. 11, located in the fuse block (J/B)]
to unified meter and A/C amp. terminal 46.
Ground is supplied
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85,
to unified meter and A/C amp. terminals 29 and 30
through grounds M35, M45 and M85.
SPEEDOMETER
The speedometer indicates the vehicle speed.
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp. with CAN communication.
Unified meter and A/C amp. converts the vehicle s peed signal to the 8-pulse signal, and outputs the vehicle
speed signal (8-pulse) to combination meter.
Combination meter indicates the vehicle speed according to vehicle speed signal (8-pulse) signal.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides engine speed signal to unified meter and A/C amp. with CAN communication.
Unified meter and A/C amp. transmits engine speed signal to combination meter with communication line.
SKIB7332E
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DI-16
< SERVICE INFORMATION >
COMBINATION METERS
Perform self-diagnosis mode of combination meter. Refer to DI-14, "Self-Diagnosis Mode of Combination
Meter".
Does self-diagnosis function operate?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
Self-diagnosis results
No malfunction detected >> INSPECTION END
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT OF COMBINATION METER
Check power supply and ground circuit of combination meter. Refer to DI-16, "
Power Supply and Ground Cir-
cuit Inspection".
OK or NG
OK >> Check odo/trip meter switch. Refer to DI-21, "Odo/Trip Meter and Illumination Control Switch
Inspection".
NG >> Repair malfunctioning part.
Symptom ChartINFOID:0000000001328443
Power Supply and Ground Circuit InspectionINFOID:0000000001328444
1.CHECK FUSE
Check for blown combination meter fuses.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
Schematic".
2.CHECK POWER SUPPLY CIRCUIT
Symptom Possible cause
Speedometer and odo/trip meter indication is malfunctioning. Refer to DI-17, "
Vehicle Speed Signal Inspection".
Tachometer indication is malfunctioning. Refer to DI-18, "
Engine Speed Signal Inspection".
Water temperature gauge indication is malfunctioning. Refer to DI-19, "
Engine Coolant Temperature Signal Inspection".
Fuel gauge indication is malfunctioning. Refer to DI-19, "
Fuel Level Sensor Signal Inspection".
Low-fuel warning lamp indication is irregular.
A/T indicator is malfunctioning. Refer to DI-49, "
A/T Indicator Is Malfunction".
Illumination control does not operate. Refer to
DI-21, "
Odo/Trip Meter and Illumination Control Switch In-
spection".
Power source Fuse No.
Battery power supply 19 ACC power supply 6
Ignition power supply 14
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