
SE-20
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. These conditions should be dupl icated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component installed to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator installation pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine rpm or
load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
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BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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CONTENTS
SECURITY CONTROL SYSTEM
PRECAUTION ................ ...............................4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution for Work ..................................................4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tool ........................................... ......5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
Component Parts Location .................................. ......6
Component Description .............................................8
CVT Shift Selector (Park Position Switch) ................8
BCM ..........................................................................8
ECM ..........................................................................8
IPDM E/R ..................................................................9
NATS Antenna Amp. .................................................9
TCM ..........................................................................9
Combination Meter ....................................................9
Door Switch ...............................................................9
Outside Key Antenna ................................................9
Hood Switch ..............................................................9
Inside Key Antenna ...................................................9
Remote Keyless Entry Receiver ...............................9
Intelligent Key ............................................................9
Push-button Ignition Switch .....................................10
Security Indicator Lamp ...................................... ....10
Starter Control Relay ...............................................10
Starter Relay ...........................................................10
Stop Lamp Switch ...................................................10
Transmission Range Switch ....................................10
Vehicle Information Display .....................................10
SYSTEM .............................................................11
INTELLIGENT KEY SYSTEM/ENGINE START
FUNCTION ............................................................. ....
11
INTELLIGENT KEY SYSTEM/ENGINE START
FUNCTION : System Diagram ............................ ....
11
INTELLIGENT KEY SYSTEM/ENGINE START
FUNCTION : System Description ........................ ....
11
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS ....13
NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS : System Diagram ..................................... ....
14
NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS : System Description ................................. ....
14
VEHICLE SECURITY SYSTEM .................................16
VEHICLE SECURITY SYSTEM : System Dia-
gram .................................................................... ....
16
VEHICLE SECURITY SYSTEM : System Descrip-
tion ....................................................................... ....
16
DIAGNOSIS SYSTEM (BCM) ...........................20
COMMON ITEM ..................................................... ....20
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) ................................................. ....
20
INTELLIGENT KEY ................................................ ....21
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) ........... .....................................
21
THEFT ALM ........................................................... ....24
THEFT ALM : CONSULT Function (BCM - THEFT
ALM) .................................................................... ....
24
IMMU ...................................................................... ....25
IMMU : CONSULT Function (BCM - IMMU) ............25
DIAGNOSIS SYSTEM (IPDM E/R) ...................26
CONSULT Function (IPDM E/R) .............................26
ECU DIAGNOSIS INFORMATION ..............28
ECM, IPDM E/R, BCM .......................................28
List of ECU Reference ......................................... ....28
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WIRING DIAGRAM .....................................29
ENGINE START FUNCTION .......................... ...29
Wiring Diagram .................................................... ...29
NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS ............................................................... ...
40
Wiring Diagram .................................................... ...40
VEHICLE SECURITY SYSTEM .........................50
Wiring Diagram .................................................... ...50
BASIC INSPECTION ...................................63
DIAGNOSIS AND REPAIR WORK FLOW ..... ...63
Work Flow ............................................................ ...63
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ............................................. ...
66
ECM ........................................................................ ...66
ECM : Description ...................................................66
ECM : Work Procedure ...........................................66
BCM ........................................................................ ...66
BCM : Description ...................................................66
BCM : Work Procedure ...........................................66
DTC/CIRCUIT DIAGNOSIS ...................... ...68
P1610 LOCK MODE ....................................... ...68
Description ........................................................... ...68
DTC Logic ...............................................................68
Diagnosis Procedure ..............................................68
P1611 ID DISCORD, IMMU-ECM ......................69
DTC Logic ............................................................ ...69
Diagnosis Procedure ..............................................69
P1612 CHAIN OF ECM-IMMU ...........................70
DTC Logic ............................................................ ...70
Diagnosis Procedure ..............................................70
P1614 CHAIN OF IMMU-KEY ...........................71
DTC Logic ............................................................ ...71
Diagnosis Procedure ..............................................71
B210B STARTER CONTROL RELAY ..............73
DTC Logic ............................................................ ...73
Diagnosis Procedure ..............................................73
B210C STARTER CONTROL RELAY ..............74
DTC Logic ............................................................ ...74
Diagnosis Procedure ..............................................74
B210D STARTER RELAY .................................76
DTC Logic ............................................................ ...76
Diagnosis Procedure ..............................................76
B210E STARTER RELAY .................................78
DTC Logic ............................................................ ...78
Diagnosis Procedure ..............................................78
B210F TRANSMISSION RANGE SWITCH .......80
Description ........................................................... ...80
DTC Logic ...............................................................80
Diagnosis Procedure ...............................................80
B2110 TRANSMISSION RANGE SWITCH .......82
Description ........................................................... ...82
DTC Logic ...............................................................82
Diagnosis Procedure ...............................................82
B2190 NATS ANTENNA AMP. .........................84
Description ........................................................... ...84
DTC Logic ...............................................................84
Diagnosis Procedure ...............................................84
B2191 DIFFERENCE OF KEY ..........................86
Description ........................................................... ...86
DTC Logic ...............................................................86
Diagnosis Procedure ...............................................86
B2192 ID DISCORD, IMMU-ECM ......................87
DTC Logic ............................................................ ...87
Diagnosis Procedure ...............................................87
B2193 CHAIN OF ECM-IMMU ..........................88
DTC Logic ............................................................ ...88
Diagnosis Procedure ...............................................88
B2195 ANTI-SCANNING ...................................89
DTC Logic ............................................................ ...89
Diagnosis Procedure ...............................................89
B2196 DONGLE UNIT .......................................90
Description ........................................................... ...90
DTC Logic ...............................................................90
Diagnosis Procedure ...............................................90
B2198 NATS ANTENNA AMP. .........................92
DTC Logic ............................................................ ...92
Diagnosis Procedure ...............................................92
B2555 STOP LAMP ...........................................94
DTC Logic ............................................................ ...94
Diagnosis Procedure ...............................................94
Component Inspection ............................................96
B2556 PUSH-BUTTON IGNITION SWITCH .....97
DTC Logic ............................................................ ...97
Diagnosis Procedure ...............................................97
Component Inspection ............................................98
B2557 VEHICLE SPEED ...................................99
DTC Logic ............................................................ ...99
Diagnosis Procedure ...............................................99
B2560 STARTER CONTROL RELAY ..............100
Description ........................................................... .100
DTC Logic .............................................................100
Diagnosis Procedure .............................................100
B2601 SHIFT POSITION ..................................101
DTC Logic ............................................................ .101
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Diagnosis Procedure ...........................................
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101
Component Inspection ..........................................103
B2602 SHIFT POSITION ..................................104
DTC Logic ........................................................... ..104
Diagnosis Procedure .............................................104
Component Inspection ..........................................105
B2603 SHIFT POSITION ..................................106
DTC Logic ........................................................... ..106
Diagnosis Procedure .............................................106
Component Inspection ..........................................109
B2604 SHIFT POSITION ..................................110
DTC Logic ........................................................... ..110
Diagnosis Procedure .............................................110
B2605 SHIFT POSITION ..................................113
DTC Logic ........................................................... ..113
Diagnosis Procedure .............................................113
B2608 STARTER RELAY ................................116
DTC Logic ........................................................... ..116
Diagnosis Procedure .............................................116
B2617 STARTER RELAY CIRCUIT .................118
Description .......................................................... ..118
DTC Logic .............................................................118
Diagnosis Procedure .............................................118
B261E VEHICLE TYPE .................................. ..120
Description .......................................................... ..120
DTC Logic .............................................................120
Diagnosis Procedure .............................................120
POWER SUPPLY AND GROUND CIRCUIT ....122
Diagnosis Procedure ........................................... ..122
POWER SUPPLY AND GROUND CIRCUIT ....123
Diagnosis Procedure ........................................... ..123
HEADLAMP FUNCTION ..................................124
Component Function Check ................................ ..124
Diagnosis Procedure .............................................124
HOOD SWITCH ................................................125
Component Function Check .............................. ..125
Diagnosis Procedure ............................................125
Component Inspection ..........................................126
SECURITY INDICATOR LAMP ........................127
Component Function Check .............................. ..127
Diagnosis Procedure ........................................... ..127
SYMPTOM DIAGNOSIS ............................129
ENGINE DOES NOT START WHEN INTELLI-
GENT KEY IS INSIDE OF VEHICLE ..............
129
Description ........................................................... ..129
Diagnosis Procedure .............................................129
SECURITY INDICATOR LAMP DOES NOT
TURN ON OR BL INK ......................................
130
Description ........................................................... ..130
Diagnosis Procedure .............................................130
VEHICLE SECURITY SYSTEM CANNOT BE
SET ..................................................................
131
INTELLIGENT KEY ................................................ ..131
INTELLIGENT KEY : Description ..........................131
INTELLIGENT KEY : Diagnos is Procedure ...........131
DOOR REQUEST SWITCH ................................... ..131
DOOR REQUEST SWITCH : Description .............131
DOOR REQUEST SWITCH : Diagnosis Proce-
dure ..................................................................... ..
131
DOOR KEY CYLINDER ......................................... ..132
DOOR KEY CYLINDER : Description ...................132
DOOR KEY CYLINDER : Diagnosis Procedure .. ..132
VEHICLE SECURITY ALARM DOES NOT
ACTIVATE .......................................................
133
Description ........................................................... ..133
Diagnosis Procedure .............................................133
PANIC ALARM FUNCTION DOES NOT OP-
ERATE .............................................................
134
Description ........................................................... ..134
Diagnosis Procedure .............................................134
REMOVAL AND INSTALLATION .............135
NATS ANTENNA AMP. ..................................135
Exploded View ..................................................... ..135
Removal and Installation .......................................135
PUSH BUTTON IGNITION SWITCH ...............136
Exploded View .......................................................136
Removal and Installation .......................................136
IMMOBILIZER CONTROL MODULE ..............137
Removal and Installation .......................................137
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SEC-4
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951563
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for WorkINFOID:0000000009461062
• When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a s hop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusable part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
- Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
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SEC-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Component Description
INFOID:0000000009461065
CVT Shift Selector (P ark Position Switch)INFOID:0000000009461066
Park position switch detects that CVT shift selector is in the P (Park) position and then transmits the signal to
BCM and IPDM E/R.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift sele ctor position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
BCMINFOID:0000000009461067
BCM controls INTELLIGENT KE Y SYSTEM (ENGINE START FUNCTIO N), NISSAN VEHICLE IMMOBI-
LIZER SYSTEM-NATS [NVIS (NATS) ], and VEHICLE SECURITY SYSTEM.
BCM performs the ID verification between BCM and Intelligent Key when the Intelligent Key is carried into the
detection area of inside key antenna and push-button ignition swit ch is pressed. If the ID verification result is
OK, push-button ignition switch operation is available.
Then, when the power supply position is turned ON, BCM performs ID verification between BCM and ECM. If
the ID verification result is OK, ECM can start engine.
ECMINFOID:0000000009461068
ECM controls the engine.
When power supply position is turned ON, BCM starts communication with ECM and performs the ID verifica-
tion between BCM and ECM.
Component Reference
CVT shift selector (park position switch) SEC-8
BCMSEC-8
ECMSEC-8
IPDM E/RSEC-9
NATS antenna amp.SEC-9
TCMSEC-9
Combination meterSEC-9
Door switchSEC-9
Hood switchSEC-9
Outside key antennaSEC-9
Inside key antennaSEC-9
Intelligent KeySEC-9
Push-button ignition switchSEC-10
Remote keyless entry receiver SEC-9
Security indicator lampSEC-10
Starter control relaySEC-10
Starter relaySEC-10
Stop lamp switchSEC-10
Transmission range switchSEC-10
Vehicle information displaySEC-10
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COMPONENT PARTSSEC-9
< SYSTEM DESCRIPTION >
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If the verification result is OK, the engine can start. If the verification result is NG, the engine can not start.
IPDM E/RINFOID:0000000009461069
IPDM E/R has the starter relay and starter control relay inside. Starter relay and starter control relay are used
for the engine starting function. IPDM E/R contro ls these relays while communicating with BCM.
NATS Antenna Amp.INFOID:0000000009461070
The ID verification is performed between BCM and transponder in Intelligent Key via NATS antenna amp.
when Intelligent Key backside is contacted to push-button i gnition switch in case that Intelligent Key battery is
discharged. If the ID verification result is OK, the operation of starting engine is available.
TCMINFOID:0000000009461071
TCM transmits the shift position signal (P/N position) to BCM and IPDM E/R. And further, TCM transmits the
shift position signal (P/N position) to BCM via CAN communication.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift select or position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
Combination MeterINFOID:0000000009461072
Combination meter transmits the vehicle speed signal to BCM via CAN communication.
BCM also receives the vehicle speed signal from ABS ac tuator and electric unit (control unit) via CAN commu-
nication. BCM compares both signals to detect the vehicle speed.
Door SwitchINFOID:0000000009461073
Door switch detects door open/close conditi on and then transmits ON/OFF signal to BCM.
Outside Key AntennaINFOID:0000000009461074
Outside key antenna detects whether Intelligent Key is outside the vehicle and transmits the signal to BCM.
Three outside key antennas are installed in the front outside handle LH, front outside handle RH and rear
bumper.
Hood SwitchINFOID:0000000009461075
Hood switch detects that hood is open/closed, and then trans mits the signal to IPDM E/R. IPDM E/R transmits
hood switch signal to BCM via CAN communication.
Inside Key AntennaINFOID:0000000009461076
Inside key antenna detects whether Intelligent Key is inside the vehicle and transmits the signal to BCM.
Two inside key antennas are installed in the front console and rear parcel shelf.
Remote Keyless Entry ReceiverINFOID:0000000009461077
Remote keyless entry receiver receives each button oper ation signal and electronic key ID signal from Intelli-
gent Key and then transmits the signal to BCM.
Intelligent KeyINFOID:0000000009461078
Each Intelligent Key has an individual electronic ID and transmits the ID signal by request from BCM.
Carrying the Intelligent Key whose ID is registered in BCM, the driver can perform, remote start, door lock/
unlock operation, remote trunk, panic alarm and push-button ignition switch operation.
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SEC-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Push-button Ignition Switch
INFOID:0000000009461079
Push-button ignition switch detects that push-button is pressed and then transmits the signal to BCM. BCM
changes the power supply position with the operation of push-button ignition switch. BCM maintains the power
supply position status while push-button is not operated.
Security Indicator LampINFOID:0000000009461080
Security indicator lamp is located on combination meter.
Security indicator lamp blinks when power supply positi on is any position other than ON to warn that NISSAN
VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (NATS)] is on board.
Starter Control RelayINFOID:0000000009461081
Engine starting system functions by controlling both starter relay and starter control relay.
Both relays are integrated in IPDM E/R. Starter rela y is controlled by BCM and starter control relay is con-
trolled by IPDM E/R on request from BCM.
IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.
Starter RelayINFOID:0000000009461082
Engine starting system functions by controlling both starter relay and starter control relay.
Both relays are integrated in IPDM E/R. Starter relay is controlled by BCM, and starter control relay is con-
trolled by IPDM E/R on request from BCM.
IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.
Stop Lamp SwitchINFOID:0000000009461083
Stop lamp switch detects that brake pedal is depressed, and then transmits the signal to BCM.
Transmission Range SwitchINFOID:0000000009461084
Transmission range switch is integrated in CVT asse mbly, and detects the CVT shift selector position.
TCM receives the transmission range switch signal and then transmits the P/N position signal to BCM and
IPDM E/R.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift sele ctor position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
Vehicle Information DisplayINFOID:0000000009461085
Vehicle information display is integrated in combination meter.
Various information and warnings regarding t he Intelligent Key System are displayed.
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