operation description - justanswer · key in ign sw hood sw key cyl sw (lock) key cyl sw (unlk)...

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DESCRIPTION

Anti-theft system is controlled by Smart Entrance Control Unit (SECU), with inputs from door switches,door key cylinder switches and engine hood switch. See Figure -Figure .

OPERATION

To set anti-theft system in armed mode, remove ignition key and close engine hood and all doors. Lockdoors using key or multi-remote controller. SECURITY indicator light will illuminate for 30 seconds,indicating pre-armed mode. After 30 seconds, SECURITY indicator light will turn off, pause briefly, thenflash once every 2.6 seconds. This indicates system is in armed mode. To cancel armed mode, unlockdoors using key or multi-remote controller.Alarm will trigger if any of the following conditions occur while system is in armed mode:

Engine hood is opened using hood release.Door(s) is unlocked without key or multi-remote controller.

If alarm is triggered, horn will sound, headlights will flash and starter circuit will be disabled. To deactivatealarm, unlock door using key or multi-remote controller.

YMMS: Mar 6, 2020Engine: 2.4L Eng License:VIN: Odometer:

2000 Nissan Xterra SE



Fig 1: Identifying Theft Warning Relays

Courtesy of NISSAN MOTOR CO., U.S.A.



Fig 2: Locating Anti-Theft System Components (2.4L)




Fig 3: Locating Anti-Theft Systems Components (3.3L)




Fig 4: Locating Anti-Theft Systems Components (Xterra)


TROUBLE SHOOTING > PRELIMINARY CHECK

NOTE: Turning ignition switch to ACC position at any time

during preliminary check will cancel procedure.

1. Open front windows. Close engine hood and all doors. Turn ignition switch to OFF position andremove key. Open engine hood or any door. If SECURITY indicator light flashes in one-secondintervals, go to next step. If SECURITY indicator light does not flash in one-second intervals, go toSYMPTOM NO. 1 .

2. Close engine hood and all doors. Lock doors using key or multi-remote controller. After 30 seconds,SECURITY indicator light should flash in 2.6-second intervals. If SECURITY indicator light flashes asspecified, go to next step. If SECURITY indicator light does not flash as specified, go to SYMPTOMNO. 2 .



3. Unlock any door without key or multi-remote controller, or open engine hood. SECURITY indicator lightshould stop flashing, and alarm should trigger (horn sounds, headlights flash and starting circuit isdisabled). If operation is as specified, go to next step. If operation is not as specified, go to step 5 .

4. Unlock any door using key or multi-remote controller. Alarm should deactivate (horn and headlightsturn off; starter circuit is enabled). If operation is as specified, system is okay. If operation is not asspecified, go to SYMPTOM NO. 5 .

5. If SECURITY indicator light remains flashing, go to SYMPTOM NO. 3 . If alarm does not trigger (hornand headlights do not function, starting circuit remains enabled), go to SYMPTOM NO. 4 .

TROUBLE SHOOTING > SYMPTOM NO. 1 > SECURITY INDICATOR LIGHT DOES NOTFLASH OR ILLUMINATE

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then SECURITY INDICATOR LIGHT CHECKunder SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 2 > ANTI-THEFT SYSTEM ARMED MODECANNOT BE SET BY ANY PROCEDURE

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR SWITCH INPUT SIGNAL CHECK,HOOD SWITCH INPUT SIGNAL CHECK and DOOR UNLOCK SENSOR CHECK under SYSTEMTESTS. See Figure -Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 2 > ANTI-THEFT SYSTEM ARMED MODECANNOT BE SET USING DOOR KEY

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR KEY CYLINDER SWITCH INPUTSIGNAL CHECK under SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 2 > ANTI-THEFT SYSTEM ARMED MODECANNOT BE SET USING MULTI-REMOTE CONTROLLER

Perform POWER SUPPLY & GROUND CIRCUIT CHECK under SYSTEM TESTS. See Figure . Checkmulti-remote control system operation. See MULTI-REMOTE CONTROL SYSTEMS - FRONTIER &XTERRA article.

TROUBLE SHOOTING > SYMPTOM NO. 3 > ANTI-THEFT SYSTEM DOES NOTACTIVATE (ALARM) WHEN SYSTEM IS ARMED & ANY DOOR IS OPENED

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR SWITCH INPUT SIGNAL CHECKand HOOD SWITCH INPUT SIGNAL CHECK under SYSTEM TESTS. See Figure -Figure .

TROUBLE SHOOTING > SYMPTOM NO. 3 > ANTI-THEFT SYSTEM DOES NOTACTIVATE (ALARM) WHEN SYSTEM IS ARMED & ANY DOOR IS UNLOCKEDWITHOUT USING KEY OR MULTI-REMOTE CONTROLLER



Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR UNLOCK SENSOR CHECKunder SYSTEM TESTS. See Figure .

TROUBLE SHOOTING > SYMPTOM NO. 4 > ANTI-THEFT SYSTEM INOPERATIVE (ALLFUNCTIONS)

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR SWITCH INPUT SIGNAL CHECK,HOOD SWITCH INPUT SIGNAL CHECK and DOOR UNLOCK SENSOR CHECK under SYSTEMTESTS. See Figure -Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 4 > ANTI-THEFT SYSTEM HORN FUNCTIONINOPERATIVE

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then ANTI-THEFT WARNING HORN ALARMCHECK under SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 4 > ANTI-THEFT SYSTEM HEADLIGHTFUNCTION INOPERATIVE

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then ANTI-THEFT WARNING HEADLIGHTSALARM CHECK under SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 4 > ANTI-THEFT SYSTEM STARTERINTERRUPT FUNCTION INOPERATIVE

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then STARTER INTERRUPT SYSTEMCHECK under SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 5 > ANTI-THEFT SYSTEM CANNOT BEDEACTIVATED BY UNLOCKING DOOR(S) USING KEY

Perform POWER SUPPLY & GROUND CIRCUIT CHECK, then DOOR KEY CYLINDER SWITCH INPUTSIGNAL CHECK under SYSTEM TESTS. See Figure and Figure .

TROUBLE SHOOTING > SYMPTOM NO. 5 > ANTI-THEFT SYSTEM CANNOT BEDEACTIVATED USING MULTI-REMOTE CONTROLLER

Perform POWER SUPPLY & GROUND CIRCUIT CHECK under SYSTEM TESTS. See Figure . Checkmulti-remote control system operation. See MULTI-REMOTE CONTROL SYSTEMS - FRONTIER &XTERRA article.

SYSTEM TESTS



Fig 1: Power Supply & Ground Circuit Check




Fig 2: Door Switch Input Signal Check




Fig 3: Hood Switch Input Signal Check




Fig 4: Security Indicator Light Check




Fig 5: Door Unlock Sensor Check




Fig 6: Door Key Cylinder Switch Input Signal Check




Fig 7: Anti-Theft Warning Horn Alarm Check




Fig 8: Anti-Theft Warning Headlights Alarm Check




Fig 9: Starter Interrupt System Check


PIN VOLTAGE CHARTS



Fig 1: Smart Entry Control Unit Pin Voltage Chart (Frontier)




Fig 2: Smart Entry Control Unit Pin Voltage Chart (Xterra)


WIRING DIAGRAMS



Fig 1: Anti-Theft System Wiring Diagram (Frontier 2-Door)

136447

HOT ATHOT IN ONHOT IN ON HOT ATALL TIMESOR ACCOR START ALL TIMES

7.5A7.5A7.5A7.5A 15A 15A

HOT ATALL TIMES

INSERTED

REMOVED

V BAT

HORN/HEADLAMPSGROUND

IGN

DR UNLK SENSOR (LH)DR UNLK SENSOR (RH)

DOOR SW (LH)ACC SW

CENTRAL LOCK SWCENTRAL UNLOCK SW

KEY IN IGN SWHOOD SW

KEY CYL SW (LOCK)KEY CYL SW (UNLK)

STARTER CUTOUT

THEFT INDICATORDOOR SW (RH)

LOCKMID STROKE LOCK

SWITCHN

MID STROKEUNLOCK

LOCKMID STROKE LOCK

NN SWITCHNO

PEN

OPE

N

LOCKLOCK UNLOCKUNLOCKMID STROKE

UN

LOC

KED

LOC

KED

UN

LOC

KED

LOC

KED

UNLOCK

FUSE & FUSIBLE LINK BOX

FUSE BLOCKFUSE 20

FUSE 5

FUSE 28 FUSE

37FUSE 31

FUSE 38

SMART ENTRANCE CONTROL UNIT

LEFT DOOR SWITCH

RIGHT DOOR LOCK ACTUATOR

LEFT DOOR LOCK ACTUATOR

MAIN POWER WINDOW & DOOR LOCK/ UNLOCK SWITCH

1P9N 6N

22 7 551 71

232

2 131 6 6 32

41

1

1810111213151718192429 +303132 -3335

1

3

2

22 21 1 3873

1

3 24 425

YEL/RED/ ORG/GRN YEL/GRN/BLKWHT BLK GRNYEL

ORG/BLK

LTORG/RED/ ORG/ GRN/YEL/ ORG/RED/ YEL/

BLK REDBLKBLK GRN BLKYEL YELGRNBRN/

YELGRN/ (ORWHT BLK)

GRN/WHT/ WHTRED

RED RED/ BLKREDRED/ GRN/WHT YEL WHTGRN/WHT/

(ORORGGRN BLKRED/WHT/ GRN)RED/ GRNREDWHT

GRN/WHT

RED

WHT/REDREDBLKGRN/WHTLT GRNLT GRN/BLKGRN/REDGRNLT GRN/REDBRNWHT/GRNBLK/PNK BLK/PNKYELYEL/REDRED/WHT BLKGRN/ORG

BLKBLKGRN/BLK

YEL

YEL/RED

BLK

LTGRN/ LT GRN/ LT GRN/GRN/LT GRN/BRNBRN GRNBLKREDREDBLK RED

YEL

YEL/RED

BLK

BLK BLKBLK BLK BLK BLK BLKBLK

BLK BLK

CIRCUIT BREAKER

THEFT WARNING HORN RELAY

THEFT WARNING LIGHT RELAY

KEY SWITCH

SECURITY INDICATOR LAMP

THEFT WARNING

RELAY

THEFT WARNING HORN

HOOD SWITCH

LEFT DOOR KEY CYLINDER SWITCH

RIGHT DOOR SWITCH

RIGHT DOOR LOCK/ UNLOCK SWITCH

RIGHT DOOR KEY CYLINDER SWITCH

(LEFT SIDE OF DASH, BEHIND COVER)

(RIGHT SIDE OF ENGINE COMPT)

(BEHIND LOWER

LEFT END OF DASH)

(IN RELAY BOX)

(IN RELAY BOX)

(BEHIND LEFT SIDE OF DASH)

(REAR OF RIGHT FRONT

FENDER)


FENDER)

(FRONT OF LEFT FRONT

FENDER)

(BEHIND DASH, LEFT OF STEERING COLUMN)

(LEFT KICK PANEL)

(RIGHT KICK PANEL)

G105

G105 G100

G200G203

HORNS SYSTEM

STARTING/ CHARGING

SYSTEM

STARTING/ CHARGING

SYSTEMHEADLIGHTS

SYSTEM



Fig 2: Anti-Theft System Wiring Diagram (Frontier Crew Cab)

136448

HOT IN ONHOT IN ON HOT AT HOT ATALL TIMESALL TIMESOR ACCOR START

7.5A7.5A 7.5A15A7.5A 15A

HOT ATALL TIMES

INSERTED

REMOVED

V BAT

DOOR UNLK OUTLF DOOR UNLK OUT

DOOR LOCK OUTHORN/HEADLAMPS

GROUNDIGN

LF DR UNLK SENSORRF DR UNLK SENSOR

LF DOOR SWREAR DOOR SWS

ACC SWCENTRAL LOCK SW

CENTRAL UNLOCK SWKEY IN IGN SW

HOOD SW

KEY CYL SW (LOCK)KEY CYL SW (UNLK)

STARTER CUTOUT

THEFT INDICATORDOOR SW (RH)

LOCKMID STROKE LOCK

SWITCHN

MID STROKEUNLOCK

LOCKMID STROKE LOCK

N N SWITCHNO

PEN

OPE

N

LOCKLOCK UNLOCKUNLOCKMID STROKE

LOC

KED

UN

LOC

KED

UN

LOC

KED

LOC

KED

UNLOCK


FUSE BLOCKFUSE 5

FUSE 28

FUSE 20 FUSE

38FUSE 37

FUSE 31


LEFT FRONT DOOR SWITCH


RIGHT FRONT DOOR LOCK ACTUATOR

LEFT FRONT DOOR LOCK ACTUATOR

6N9N 1P

1 77 2 5521

22 3

2 1 1 36 632

1 4

+

1234

+8101112131516 +1718192429 +303132 -3335

1

3

2

+ 22 215 611 33

1

3 24 410 4

GRNGRN/ YEL/YEL/ORG/RED/BLK GRNYELWHT BLK

ORG/BLK

LTORG/YEL/RED/ RED/ GRN/ORG/ORG/ YEL/

YEL BLKBLKGRN REDBLKYEL BLKGRNBRN/

YELGRN/ (ORWHT BLK)

GRN/WHT/ WHTRED

GRN/ BLKRED/RED RED/ REDWHTWHT GRNWHT/ GRN/

ORGGRN BLKWHT/

GRNRED/REDWHT

GRN/WHT

RED

WHT/RED(OR PPL)BLU/RED

GRN/WHTBLU

RED/YELREDBLKGRN/WHTLT GRNLT GRN/BLKGRN/RED

RED/YELRED/BLK RED/YELRED/YELGRNLT GRN/REDBRNWHT/GRNBLK/PNK BLK/PNKYELYEL/REDRED/WHT BLKGRN/ORG

BLKBLKRED/BLK

YEL

YEL/RED

BLK

RED/ LT GRN/ LTGRN/LT GRN/ LT GRN/BRN BRN REDBLK BLKRED GRNRED

YEL

YEL/RED

BLK

BLKBLK BLK BLKBLK BLKBLK BLK

BLK BLK

CIRCUIT BREAKER



KEY SWITCH


THEFT WARNING

RELAY

THEFT WARNING HORN

LEFT REAR DOOR SWITCH

RIGHT REAR DOOR SWITCH

HOOD SWITCH

LEFT FRONT DOOR KEY CYLINDER SWITCH

RIGHT FRONT DOOR SWITCH


RIGHT FRONT DOOR KEY CYLINDER SWITCH



(BEHIND LOWER

LEFT END OF DASH)

(IN RELAY BOX)

(IN RELAY BOX)



FENDER)


FENDER)


FENDER)


(RIGHT KICK PANEL)

(LEFT KICK PANEL)

G105

G100G105

G203 G200

HORNS SYSTEM

STARTING/ CHARGING

SYSTEM

STARTING/ CHARGING

SYSTEMHEADLIGHTS

SYSTEM

DOOR LOCKS SYSTEM



Fig 3: Anti-Theft System Wiring Diagram (Xterra - 1 Of 2)

136449

HOT IN ON HOT IN ON HOT ATHOT ATOR START OR ACC ALL TIMESALL TIMES

7.5A7.5A 7.5A

INSERTED

REMOVED

V BAT

DOOR UNLK OUTLF DOOR UNLK OUT

DOOR LOCK OUT1HORN/HEADLAMPS2GROUND

IGN

3LF DR UNLK SENSOR4RF DR UNLK SENSOR5REAR/BACK SENSORS

LF DOOR SW6REAR DOOR SWS

ACC SWCENTRAL LOCK SW

CENTRAL UNLOCK SWKEY IN IGN SW

HOOD SW 7KEY CYL SW (LOCK) 8KEY CYL SW (UNLK) 9

STARTER CUTOUT

THEFT INDICATORRF DOOR SW

N N

OPE

N

LOCKLOCK UNLOCKUNLOCK

OPE

N

FUSE BLOCKFUSE 20

FUSE 28

FUSE 5


LEFT FRONT DOOR SWITCH


9N 6N1P2

11

32

2

2

1 4

123481011121314151617181924293031323335

21511 3 6

3

10 4

+

GRN RED/WHT/ GRN/RED WHT YEL

RED/ RED/YELYEL

GRNWHT/ BRN/RED YELGRN/ (ORWHT BLK)GRN/

WHT

GRN/WHT/ORGGRN

GRNRED/WHT

WHT/REDBLU/REDGRN/WHTBLURED REDBLK BLKGRN/WHTLT GRN LT GRNLT GRN/BLK LT GRN/BLKBLU/ORG BLU/ORGGRN/REDRED/BLK RED/BLKGRNLT GRN/REDBRNWHT/GRNBLK/PNK BLK/PNKYEL YELYEL/RED YEL/REDRED/WHTGRN/ORGGRN/BLK

LT GRN/ LT GRN/ GRN/RED REDBRN BRN RED

BLK BLKBLKGRN/

BLK

BLK BLK

CIRCUIT BREAKER

KEY SWITCH


THEFT WARNING RELAY


RIGHT FRONT DOOR SWITCH


(BEHIND LOWER

LEFT END OF DASH)



(BELOW LEFT REAR SEAT)

(RIGHT KICK PANEL)

G203 G304

STARTING/ CHARGING

SYSTEM

STARTING/ CHARGING

SYSTEM

DOOR LOCKS SYSTEM



Fig 4: Anti-Theft System Wiring Diagram (Xterra - 2 Of 2)

136450

HOT ATALL TIMES

7.5A 15A 15A

12

345

6

789

LOCKMID STROKE LOCK

SWITCHN

MID STROKEUNLOCK

LOCKMID STROKE LOCK

SWITCHN

MID STROKEUNLOCK

LOCKMID STROKE LOCKLO

CKE

D

UN

LOC

KED

UN

LOC

KED

LOC

KED

UN

LOC

KED

LOC

KED

UN

LOC

KED

LOC

KED

UN

LOC

KED

LOC

KED

SWITCHN

MID STROKEUNLOCK


FUSE 31

FUSE 38

FUSE 37

LEFT FRONT DOOR LOCK ACTUATOR

RIGHT FRONT DOOR LOCK ACTUATOR

RIGHT REAR DOOR LOCK ACTUATOR

BACK DOOR LOCK ACTUATOR

LEFT REAR DOOR LOCK ACTUATOR

5 2 572 7

+

61 363 1

+

+

+ -

+

-

1

3

2

1

3

2

2 23 23

3

4 41 41 1

2

YEL/YEL/ORG/BLK GRN BLK

ORG/BLK

LTORG/ GRN/ORG/YEL/ YEL/ORG/

REDBLK GRN BLK BLK BLK

RED/BLK

REDRED/ RED/ BLKGRN/REDWHTGRNWHT

BLK

RED/BLKRED/BLKRED/BLK

RED/BLK

GRN/RED WHT

BLK

BLK

REDBLK

LT GRNLT GRN/BLK BLK/PNKBLU/ORG

RED/BLK BLK

BLK BLK

BLK/PNKYELYEL/RED

YEL

YEL/RED

BLK

BLK

YELBLU/ORG

YEL/RED

BLK

BLU/ LT GRN/BLU/ BLU/ LTGRNORGORG BLKORG

YEL

YEL/REDBLKBLK BLKBLK BLKBLK BLK

BLK

BLK BLKBLK BLK BLK



RIGHT REAR DOOR SWITCH

LEFT REAR DOOR SWITCH

THEFT WARNING HORN BACK DOOR

SWITCH

HOOD SWITCH

BACK DOOR KEY CYLINDER SWITCH

LEFT FRONT DOOR KEY CYLINDER SWITCH

RIGHT FRONT DOOR KEY CYLINDER SWITCH


(IN RELAY BOX)

(IN RELAY BOX)


FENDER)

(LEFT REAR SIDE OF CARGO AREA)


FENDER)


FENDER)


(LEFT KICK PANEL)

(RIGHT KICK PANEL)

(BELOW RIGHT REAR SEAT)


(BELOW LEFT REAR SEAT)

G105

G404

G105 G100

G404

G303 G404 G203 G200G304

HORNS SYSTEM

HEADLIGHTS SYSTEM

operation description - justanswer · key in ign sw hood sw key cyl sw (lock) key cyl sw (unlk)...

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