VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-175
< SERVICE INFORMATION >
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O PACTIVE TEST
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
TRUNK OPNR SW This is displayed ev en when it is not equipped.
TRUNK CYL SW This is displayed ev en when it is not equipped.
TRUNK OPN MNTR This is displayed even when it is not equipped.
KEYLESS LOCK Indicates [ON/OFF] conditio n of lock signal from key fob.
KEYLESS UNLOCK Indicates [ON/O FF] condition of unlock signal from key fob.
KEYLESS TRUNK Indicates [ON/OFF] condition of trunk opener signal from key fob.
HOOD SW Indicates [ON/OFF] condition of hood switch.
DOOR SW-DR Indicates [ON/OFF] cond ition of front door switch LH.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch.
KEY CYL LK SW Indicates [ON/OFF] condition of lock signal from key cylinder switch.
KEY CYL UN SW Indicates [ON/OFF] condition of unlock signal from key cylinder switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock/unlock switch LH and RH.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch LH and RH.
Test Item Description
THEFT IND This test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-III screen is touched.
ANTI THEFT HORN This test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-III screen is touched.
HEADLAMP(HI) This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5
seconds after “ON” on CONSULT-III screen is touched.
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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-183
< SERVICE INFORMATION >
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With CONSULT-III
Check (“THEFT IND”) in “ACTIV E TEST” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and security indicator lamp connector.
3. Check continuity between BCM connector M3 terminal 23 and security indicator lamp connector M38 terminal 2.
OK or NG
OK >> Check the following. Harness for open or short between BCM and securityindicator lamp.
10A fuse [No.19, located in fuse block (J/B)]
NG >> Repair or replace harness between BCM and security indicator lamp.
Diagnosis Procedure 3INFOID:0000000001327918
FRONT DOOR KEY CYLINDER SWITCH CHECK
1.CHECK KEY CYLINDER SWITCH OPERATION
Check door key cylinder switch using key.
Do doors lock / unlock when using the key?
YES >> Front door key cylinder switch operation is OK.
NO >> Check door key cylinder switch circuit. Refer to GW-43, "
Check Front Door Key Cylinder Switch".
Diagnosis Procedure 4INFOID:0000000001327919
VEHICLE SECURITY HORN ALARM CHECK
1.CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
YES >> Check harness for open or shor t between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-48
.
Diagnosis Procedure 5INFOID:0000000001327920
VEHICLE SECURITY HEADLAMP ALARM CHECK
Perform operation shown on display indicator lamp
should illuminate.
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
M3 23 (G/OR) Ground Illuminates 0
Goes off Battery voltage
PIIA6230E
23 (G/OR) – 2 (G/OR) : Co
ntinuity should exist.
PIIA6231E
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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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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-197
< SERVICE INFORMATION >
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Replace ECM.
Perform initialization or re-communicating function.
- For re-communicating function, refer to BL-187, "
ECM Re-Communicating Function".
- For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
Diagnosis Procedure 2INFOID:0000000001327935
Self-diagnostic results:
“DIFFERENCE OF KEY” is displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “DIFFERENCE OF KEY” is displayed on CONSULT-III screen.
Does CONSULT-III screen display as shown in figure?
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONS ULT-III. Re-register all ignition key or mechanical key IDs.
For initialization and registration of ignition key or mec hanical key IDs, refer to “CONSULT-III Operation Man-
ual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or ma lfunction, CONSULT-III shows message on the screen.
Can the system be initialized and can the engine be started with re-registered ignition key or mechanical key?
YES >> Ignition key ID was unregistered.
NO >> BCM is malfunctioning.
Replace BCM.
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
Diagnosis Procedure 3INFOID:0000000001327936
Self-diagnostic results:
“ID DISCORD, IMM-ECM” is displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “ID DISCO RD, IMM-ECM” is displayed on CONSULT-III screen.
NOTE:
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Does CONSULT-III screen display as shown in figure?
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONS ULT-III. Re-register all ignition key or mechanical key IDs.
For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or ma lfunction, CONSULT-III shows message on the screen.
Can the system be initialized?
YES >> Start engine. (END) System initialization had not been completed.
NO >> ECM is malfunctioning. Replace ECM.
Perform initialization or re-communicating function.
- For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
- For re-communicating function, refer to BL-187, "
ECM Re-Communicating Function".
Diagnosis Procedure 4INFOID:0000000001327937
Self-diagnostic results:
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BL-198
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
“LOCK MODE” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MO DE” is displayed on CONSULT-III screen.
Does CONSULT-III screen disp lay as shown in figure?
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position. Wait 5 seconds.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
YES >> System is OK (Now system is escaped from “LOCK MODE”).
NO >> GO TO 3.
3.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or malf unction, CONSULT-III shows the message on the screen.
Can the system be initialized?
YES >> System is OK.
NO >> GO TO 4.
4.PERFORM INITIALIZATION WITH CONSULT-III AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-III. For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or malf unctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
YES >> System is OK. 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. Replace ECM.
Perform initialization or re-communicating function.
- For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
- For re-communicating function, refer to BL-187, "
ECM Re-Communicating Function".
Diagnosis Procedure 5INFOID:0000000001327938
Self-diagnostic results:
“CHAIN OF IMMU-KEY” is displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm self-diagnostic results “CHAIN OF IM MU-KEY” is displayed on CONSULT-III screen.
Does CONSULT-III screen display as shown?
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-201, "
Removal and Installation NATS Antenna Amp".
OK or NG
OK >> GO TO 3.
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BRC-8
< SERVICE INFORMATION >[VDC/TCS/ABS]
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
Adjustment of Steering Angl
e Sensor Neutral PositionINFOID:0000000001327658
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
CAUTION:
To adjust neutral position of steering angl e sensor, make sure to use CONSULT-III.
(Adjustment can not be done without CONSULT-III.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Touch “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” on CONSULT-III screen in this order.
3. Touch “START”. CAUTION:
Do not touch steering wheel whil e adjusting steering angle sensor.
4. After approximately 10 seconds, touch “END”. (After approximately 60 seconds, it ends automatically.)
5. Turn ignition switch OFF, then turn it ON again. CAUTION:
Be sure to perform above operation.
6. Run vehicle with front wheels in straight-ahead position, then stop.
7. Select “DATA MONITOR”, “SELECTION FROM ME NU”, and “STR ANGLE SIG” on CONSULT-III screen.
Then make sure “STR ANGLE SIG” is within 0 ± 3.5 deg. If value is more than specification, repeat steps
1 to 6.
8. Erase memory of ABS actuator and electric unit (control unit) and ECM.
9. Turn ignition switch OFF.
Calibration of Decel G Sensor (AWD Models)INFOID:0000000001327659
NOTE:
After removing/installing or replacing yaw rate/side/dec el G sensor, ABS actuator and electric unit (control
unit), suspension components, or after adjusting wheel ali gnment, make sure to calibration of decel G sensor
before running vehicle.
CAUTION:
To calibrate decel G sensor, make sure to use CONS ULT-III. (Adjustment can not be done without CON-
SULT-III.)
1. Stop vehicle with front wheels in straight-ahead position.
CAUTION:
The work should be done at a horizontal place when vehicle is in the unloaded vehicle condition.
Keep all tires inflated to correct pressures. Ad just the tire pressure to the specified pressure
value.
2. Touch “WORK SUPPORT” and “DECEL G-SEN CALI BRATION” on CONSULT-III screen in this order.
3. Touch “START”. CAUTION:
Set vehicle as shown in the display.
4. After approximately 10 seconds, touch “END”. (After approximately 60 seconds, it ends automatically.)
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit) —
Replacing ABS actuator and electric unit (control unit) ×
Removing/Installing steering angle sensor ×
Removing/Installing steering components ×
Removing/Installing suspension components ×
Change 4 tires to new ones —
Tire rotation —
Adjusting wheel alignment ×
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TROUBLE DIAGNOSISBRC-23
< SERVICE INFORMATION > [VDC/TCS/ABS]
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Control Unit Input/Out put Signal StandardINFOID:0000000001327670
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows ABS actuator and electric unit (control unit) calculation data, so a normal value
might be displayed even in the event the output circuit (harness) is open or short-circuited.
TFWM0235E
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BRC-24
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Monitor item Display content Data monitor
Condition Reference value in
normal operation
SLCT LVR POSI A/T shift position P: P position
R: R position
N: N position
D: D position
GEAR A/T gear position 1: 1st gear
2: 2nd gear
3: 3rd gear
4: 4th gear
5: 5th gear
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speed Vehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)
Almost in accordance
with speedometer
display
(within
± 10 %)
ACCEL POS SIG Open/close condition of throttle valve
(linked with a
ccelerator pedal) Accelerator pedal not depressed
(Engine stopped)
0 %
Depress accelerator pedal
(Engine stopped) 0 to 100 %
ENGINE SPEED With engine running With engine stopped 0 rpm
Engine running
Almost in accordance
with tachometer dis-
play
STR ANGLE SIG Steering angle detected by steering angle
sensor Straight-ahead Approx. 0 deg
Steering wheel turned –756 to 756 deg
YAW RATE SEN Yaw rate detected by yaw rate sensor Vehicle stopped Approx. 0 d/s
Vehicle running –100 to 100 d/s
SIDE G-SENSOR Transverse G detected by side G sensor Vehicle stopped
Approx. 0 m/s
2
Vehicle running–16.7 to 16.7 m/s2
PRESS SENSORBrake fluid pressure detected by pressure
sensor With ignition switch turned ON and brake
pedal released
Approx. 0 bar
With ignition switch turned ON and brake
pedal depressed 0 to 170 bar
BATTERY VOLT Battery voltage supplied to ABS actuator
and electric unit (control unit) Ignition switch ON 10 to 16 V
STOP LAMP SW Brake pedal operation Brake pedal depressed ON
Brake pedal not depressed OFF
OFF SW VDC OFF switch ON/OFF status VDC OFF switch ON
(When VDC OFF indicator lamp is ON)
ON
VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF) OFF
ABS WARN LAMP ABS warning lamp ON condition (Note 2) ABS warning lamp ON ON
ABS warning lamp OFF OFF
MOTOR RELAY Operation status of motor and motor relay Ignition switch ON or engine running
(ABS not operated)
OFF
Ignition switch ON or engine running (ABS
operated) ON
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