2007 NISSAN 350Z ECU

BL-140
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 November2007 350Z
Symptom ChartNIS00034
*1: Make sure the system is in the armed phase.PROCEDURE
Diagnostic procedure Reference page
SYMPTOM
1Vehicle secu-
rity system
cannot be set
by ····Door switchDiagnostic Procedure 1 (Check door, hood, back door switch or
trunk room lamp switch)BL-141
Lock/unlock switch Diagnostic Procedure 6 (Check door lock/unlock switch)BL-149
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-147
Key fob Check remote keyless entry system function.BL-61
BCM If the above systems are “OK”, replace BCM.BCS-17
Security indicator does not turn “ON”.Diagnostic Procedure 2 (Check security indicator lamp)BL-146If the above systems are “OK”, replace BCM.BCS-17
2*1 Vehicle
security sys-
tem does not
alarm when
····Any door is opened.Diagnostic Procedure 1 (Check door, hood and trunk room lamp
switch)BL-141
If the above systems are “OK”, replace BCM.BCS-17
3Vehicle secu-
rity alarm
does not acti-
vate.Horn alarmDiagnostic Procedure 4 (Check vehicle security horn alarm)BL-148If the above systems are “OK”, replace BCM.BCS-17
Headlamp alarmDiagnostic Procedure 5 (Check vehicle security headlamp alarm)BL-148If the above systems are “OK”, replace BCM.BCS-17
4Vehicle secu-
rity system
cannot be
canceled by
····Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-147Key fobCheck remote keyless entry system function.BL-61If the above systems are “OK”, replace BCM.BCS-17

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2006 November2007 350Z
Diagnostic Procedure 1NIS00035
1 – 1 CHECK DOOR SWITCH
Check driver side door switch and passenger side door switch
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-III
Check door switches (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch is OK, and go to the following

BL-143, "1 – 2 CHECK BACK DOOR SWITCH
(COUPE)"

BL-145, "1 – 3 CHECK TRUNK LID LOCK ASSEM-
BLY (TRUNK ROOM LAMP SWITCH) (ROADSTER)"
NG >> GO TO 2.
Monitor item Condition
DOOR SW-DROPEN : ON
CLOSE : OFF
DOOR SW-ASOPEN : ON
CLOSE : OFF
ItemCon-
nectorTe r m i n a l
(Wire color)Condi-
tion of
door
switchVoltage [V]
(Approx.)
(+) (–)
Driver side door
switchB83 62 (L)
GroundOpen 0
Close 5
Passenger side
door switchM90 12 (P)Open 0
Close 5
PIIA9539E

BL-142
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 November2007 350Z
2. CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM connector.
3. Check continuity between door switch harness connector B17, B23 terminal 1 and BCM harness connec-
tor B83 terminal 62 (driver side) or M90 terminal 12 (passenger side).
4. Check continuity between door switch harness connector B17,
B23 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace door switch harness.
3. CHECK DOOR SWITCH
Check continuity between door switch B17 (driver side) or B23 (passenger side) terminal 1 and ground part of
door switch.
OK or NG
OK >> GO TO 4.
NG >> Replace door switch.Driver side door
1 (L) - 62 (L) : Continuity should exist.
Passenger side door
1 (P) - 12 (P) : Continuity should exist.
Each door switch
1 (W or P) - Ground : Continuity should not exist.
PIIA9540E
TerminalCondition of door
switchContinuity
1 Ground part of door switchPushed No
Released Yes
PIIA3351E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2006 November2007 350Z
4. CHECK DOOR SWITCH INPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM harness connectors B83 (driver side), M90 (passenger side) terminals 62,
12 and ground.
OK or NG
OK >> Check harness connection.
NG >> Replace BCM.
1 – 2 CHECK BACK DOOR SWITCH (COUPE)
1. CHECK BACK DOOR SWITCH INPUT SIGNAL
With CONSULT-III
Check back door switch (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Back door switch is OK.
NG >> GO TO 2.62 (L) – Ground : Approx. 5V
12 (P) – Ground : Approx. 5V
PIIA9539E
Monitor item Condition
BACK DOOR SWOPEN : ON
CLOSE : OFF
ConnectorTerminal (Wire color)
Condition of
back door switchVoltage [V]
(Approx.)
(+) (–)
M83 58 (R/W) GroundOpen 0
Close Buttery voltage
PIIB3793E

BL-144
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 November2007 350Z
2. CHECK BACK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and back door switch connectors.
3. Check continuity between BCM harness connector B83 terminal 58 and back door switch harness con-
nector T12 terminal 1.
4. Check continuity between BCM harness connector B83 terminal
58 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace back door switch harness.
3. CHECK BACK DOOR SWITCH
Check continuity between door switch terminals 1 and 3.
OK or NG
OK >> GO TO 4.
NG >> Replace back door switch.
4. CHECK BACK DOOR SWITCH GROUND CIRCUIT
Check continuity between back door switch harness connector T12 terminal 3 and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.58 (R/W) - 1 (R/W) : Continuity should exist.
58 (R/W) - Ground : Continuity should not exist.
PIIB3794E
Terminal Condition of back door switch Continuity
13Open position Yes
Closed position No
PIIA4316E
3 (B) - Ground : Continuity should exist.
PIIA2490E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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1 – 3 CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) (ROADSTER)
1. CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
With CONSULT-III
Check trunk lid opener switch (“TRUNK OPN MNTR”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
*: When interior lamp battery saver control is in OFF. → Approx 5V.
OK or NG
OK >> Trunk room lamp switch is OK .
NG >> GO TO 2.
2. CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly (trunk room lamp switch) and BCM connector.
3. Check continuity between trunk lid lock assembly (trunk room
lamp switch) harness connector T47 terminal 3 and BCM har-
ness connector B83 terminal 57.
4. Check continuity between BCM harness connector B83 terminal
57 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace trunk lid lock assembly (trunk room lamp
switch) harness.
3. CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between trunk lid lock assembly (trunk room
lamp switch) harness connector T47 terminal 1 and ground.
OK or NG
OK >> Trunk lid lock assembly (trunk room lamp switch) is OK.
NG >> Repair or replace trunk lid lock assembly (trunk room
lamp switch) harness.
Monitor item Condition
TRNK OPN MNTROPEN : ON
CLOSE : OFF
ConnectorTerminal (Wire color)
Condition of trunk
room lamp switchVoltage [V]
(Approx.)
(+) (–)
B83 57 (R/W) GroundOpen 0
Close Battery voltage*
PIIB1266E
57 (R/W) - 3 (R/W) : Continuity should exist.
57 (R/W) - Ground : Continuity should not exist.
PIIB9170E
1 (B) - Ground : Continuity should exist.
PIIB9171E

BL-146
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 November2007 350Z
Diagnostic Procedure 2NIS00036
CHECK SECURITY INDICATOR LAMP
1. SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-III
Check “THEFT IND” in “ACTIVE TEST” mode with CONSULT-III.
Without CONSULT-III
1. Disconnect BCM connector.
2. Check voltage between BCM connector M90 terminal 23 and
ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT FOR SECURITY INDICATOR LAMP
1. Disconnect security indicator lamp connector.
2. Check voltage between security indicator lamp connector M34 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

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

Harness for open or short between security indicator
lamp and fuse
3. CHECK SECURITY INDICATOR LAMP CIRCUIT
1. Check continuity between BCM harness connector M90 terminal
23 and security indicator lamp harness connector M34 terminal
2.
2. Check continuity between BCM harness connector M90 terminal
23 and ground.
OK or NG
OK >> Check indicator lamp condition.
NG >> Repair harness or connector.Perform operation shown on display.
Indicator lamp should illuminate.
23 (G/OR) - Ground : Battery voltage
PIIA9850E
1 (R/W) - Ground : Battery voltage
PIIA2491E
23 (G/OR) - 2 (G/OR) : Continuity should exist.
23 (G/OR) - Ground : Continuity should not exist.
PIIB7462E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2006 November2007 350Z
Diagnostic Procedure 3NIS00037
CHECK DOOR KEY CYLINDER SWITCH
1. CHECK DOOR KEY CYLINDER SWITCH DRIVER SIDE OPERATION
Do doors lock/unlock when using the key?
YES or NO
YES >> Door key cylinder switch operation is OK.
NO >> Check door key cylinder switch circuit. Refer to BL-47, "
Check Door Key Cylinder Switch" .