fuse NISSAN LATIO 2009 Service Owner's Manual

BL
N
O P
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M52 terminal 26 and ground.
OK or NG OK >> Stop lamp switch is OK.
NG >> GO TO 2 OK >> GO TO 3
NG >> Repair or replace harness between stop lamp switch power supply circuit and fuse. OK >> GO TO 4
NG >> Replace stop lamp switch. OK >> Check condition of harness and connector.
NG >> Repair or replace harness. Connector
Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26 Ground Brake pedal
depressed Battery volt-
age
Brake pedal released 0

BL-152< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Stop Lamp Switch Check (With M/T) INFOID:00000000043050641.
CHECK STOP LAMP SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M52 terminal 26 and ground.
OK or NG OK >> Stop lamp switch is OK.
NG >> GO TO 2 2.
CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector
E13 terminal 1 and ground.
OK or NG OK >> GO TO 3
NG >> Repair or replace harness between stop lamp switch power supply circuit and fuse. 3.
CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch terminals 1 and 2.
OK or NG OK >> GO TO 4
NG >> Replace stop lamp switch. 4.
CHECK STOP LAMP SWITCH CIRCUIT
1. Check continuity between Inte lligent Key unit harness connector
(A) M52 terminal 26 and stop lamp switch harness connector (B)
E13 terminal 2.
2. Check continuity between Inte lligent Key unit harness connector
M52 terminal 26 and ground.
OK or NG Connector
Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26 Ground Brake pedal
depressed Battery volt-
age
Brake pedal released 0 WIIA1207E
1 - Ground : Battery voltage
WIIA1208E
Component Terminals Condition Continuity
Stop lamp switch 1 2 Brake pedal depressed Yes
Brake pedal not depressed No WIIA1209E
26 - 2 : Continuity should exist.
26 - Ground : Continuity should not exist. WIIA1210E

BACK DOOR LOCK
BL-183
< SERVICE INFORMATION >
C
D E
F
G H
J
K L
M A
B BL
N
O P
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-3, " Schematic " .
2.
CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors and ground.
OK or NG OK >> GO TO 3.
NG >> Repair or replace the harness. 3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Check Back Door Opener S witch Circuit (Without Intellig ent Key or Power Windows)
INFOID:00000000043050921.
CHECK BACK DOOR OPENER SWITCH SIGNAL 1
With CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check back door opener switch (“TRNK OPNR SW ”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check voltage between BCM connector M18 terminal 30 and ground. Connector
Terminals
Power
source Condition Voltage (V) (Ap-
prox.)
(+) (-)
M18 11 Ground
ACC
power
supply Ignition
switch
ACC or ON Battery voltage
38 Ground Ignition
power
supply Ignition
switch ON
or START Battery voltage
M20 57 Ground
Battery
power
supply Ignition
switch OFF Battery voltage
70 Ground Battery
power
supply Ignition
switch OFF Battery voltage LIIA2415E
67 - Ground : Continuity should exist.
LIIA0915E
Test item Condition
TRNK OPNR SW Back door opener switch is pushed: ON
Back door opener switch is released: OFF

TRUNK LID OPENER
BL-207
< SERVICE INFORMATION >
C
D E
F
G H
J
K L
M A
B BL
N
O P
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-3, " Schematic " .
2.
CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors and ground.
OK or NG OK >> GO TO 3.
NG >> Repair or replace the harness. 3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Check Trunk Lid Opener Switch Circuit (Wit hout Intelligent Key or Power Windows)
INFOID:00000000043051101.
CHECK TRUNK LID OPENER SWITCH SIGNAL 1
With CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check trunk lid opener switch (“TRNK OPNR SW”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check voltage between BCM connector M18 terminal 30 and ground. Connector
Terminals
Power
source Condition Voltage (V) (Ap-
prox.)
(+) (-)
M18 11 Ground
ACC
power
supply Ignition
switch
ACC or ON Battery voltage
38 Ground Ignition
power
supply Ignition
switch ON
or START Battery voltage
M20 57 Ground
Battery
power
supply Ignition
switch OFF Battery voltage
70 Ground Battery
power
supply Ignition
switch OFF Battery voltage LIIA2415E
67 - Ground : Continuity should exist.
LIIA0915E
Test item Condition
TRNK OPNR SW Trunk lid opener switch is pushed: ON
Trunk lid opener switch is released: OFF

BL
N
O P
System Description
INFOID:0000000004305116
DESCRIPTION
Operation Flow
Setting the vehicle security system Initial condition
• Ignition switch is in OFF position.
Disarmed phase
• When the vehicle is being driven or when any door or tr unk (sedan) is open, the vehicle security system is
set in the disarmed phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase
• The vehicle security system turns into the "pre- armed" phase (security lamp illuminates) when the BCM
receives LOCK signal from front door key cylinder s witch, keyfob or Intelligent Key after all doors and trunk
(sedan) are closed.
• All doors and trunk (sedan) are closed after front door s are locked by key or door lock and unlock switch.
The security indicator lamp illuminates for 30 seconds. t hen, the system automatically shifts into the "armed"
phase.
Canceling the set vehicle security system Armed phase is canceled when the driver unlocks the doors or the trunk (sedan) with the key, keyfob or Intelli-
gent Key.
Activating the alarm operation of the vehicle security system Make sure the system is in the armed phase.
When one of the following operations is performed, the system sounds the horns and flashes the headlamps
for about 50 seconds.
1. Any door is opened before unlocking door with key, keyfob or Intelligent Key.
2. Door is unlocked without using key, keyfob or Intelligent Key.
3. Trunk (sedan) is opened without using the key, trunk lid opener switch, keyfob or Intelligent Key (sedan).
POWER SUPPLY AND GROUND
Power is supplied at all times
• through 10A fuse [No.13, located in the fuse block (J/B)] 10. Trunk lamp switch and trunk release
solenoid B127
(sedan view with trunk open) 11. Trunk key cylinder switch B142
(sedan) 12. Main power window and door lock/
unlock switch D7, D8
Power window and door lock/unlock
switch RH D105
13. Horn E18, E20

OK >> Check the following:
• 10A fuse [No. 13, located in fuse block (J/B)]
• Harness for open or short between combination meter and fuse
NG >> Repair or replace harness.
Diagnosis Procedure 3 INFOID:0000000004305128YES >> Front door lock assembly LH (key cylinder switch) is OK.
NO >> Check front door lock assembly LH (key cylinder switch) circuit. Refer to BL-54, " Front Door Key
Cylinder Switch LH Check " .
Diagnosis Procedure 4 INFOID:0000000004305129
VEHICLE SECURITY HORN ALARM CHECK YES >> Check harness for open or short between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-38 .
Diagnosis Procedure 5 INFOID:0000000004305130
VEHICLE SECURITY HEADLAMP ALARM CHECK YES >> Headlamp alarm is OK.
NO >> Check headlamp system. Refer to LT-4 or
LT-25 .
Diagnosis Procedure 6 INFOID:0000000004305131
DOOR LOCK/UNLOCK SWITCH CHECK YES >> Door lock/unlock switch is OK.
NO >> Refer to BL-49, " Door Lock and Unlock Switch Check " .
Diagnosis Procedure 7 INFOID:0000000004305132
DOOR SWITCH CHECK (SEDAN) 23 - 18 : Continuity should exist.
23 - Ground : Continuity should not exist.

CAN Com-
munication Inspection Using CONSULT-III (Self-Diagnosis) " .
SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON- SULT-III screen. DIAGNOSTIC PROCE-
DURE
(Reference page) SYSTEM
(Malfunctioning part or mode)
• Security indicator lighting up*
• Engine cannot be started CHAIN OF ECM-IMMU
[P1612] PROCEDURE 1
(BL-260 )
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.
Open circuit in battery voltage line of BCM circuit
Open circuit in ignition line of BCM circuit
Open circuit in ground line of BCM circuit
Open or short circuit between BCM and ECM commu-
nication line
ECM
BCM
DIFFERENCE OF KEY [P1615] PROCEDURE 6
(BL-266 )
Unregistered ignition key is used.
BCM is malfunctioning.
CHAIN OF IMMU-KEY [P1614] PROCEDURE 2
(BL-262 )
Malfunction of key ID chip
Communication line between ANT/ AMP and BCM:
Open circuit or short circuit of battery voltage line or
ground line
Open circuit in power source line of ANT/ AMP circuit
Open circuit in ground line of ANT/ AMP circuit
NATS antenna amp.
BCM
ID DISCORD, IMM- ECM
[P1611] PROCEDURE 3
(BL-263 )
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] PROCEDURE 5
(BL-265 )
When the starting operation is carried out five or more
times consecutively under the following conditions,
NATS will shift the mode to one which prevents the en-
gine from being started.
• Unregistered ignition key is used.
• BCM or ECM’s malfunctioning.
Security indicator
lighting up* DON'T ERASE BE-
FORE CHECKING ENG DIAG WORK FLOW
(BL-257 )
Engine trouble data and NATS trouble data have been
detected in ECM SYMPTOM
DIAGNOSTIC PROCEDURE
(Reference page) SYSTEM
(Malfunctioning part or mode)
Security indicator does not light up*. PROCEDURE 4
(BL-264 )
Security indictor.
Open circuit between Fuse and BCM
BCM

BL
N
O P “ CHAIN OF ECM-IMMU ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
OK >> GO TO 3
NG >> Check the following. • 40A fusible link (letter g , located in the fuse and fus-
ible link box).
• 10A fuse [No.8, located in the fuse block (J/B)].
• Harness for open or short between fusible link and BCM.
• Harness for open or short between fuse and BCM. OK >> GO TO 4
NG >> Check the following. • 10A fuse [No. 6, located in the fuse block (J/B)].
• Harness for open or short between fuse and BCM. OK >> GO TO 5
NG >> Repair or replace harness. BCM connector
Terminals
Voltage [V]
(Approx.)
(+) (–)
M20 57
Ground Battery voltage
70

Removal and Installation of BCM " .
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
Does the engine start? Yes >> BCM is malfunctioning.
• Replace BCM. Refer to BCS-18, " Removal and Installation of BCM " .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization or re-communicating function
• For initialization, refer to “CONSULT-III Operation Manual NATS”
• For re-communicating function, refer to BL-249, " ECM Re-communicating Function "
“ CHAIN OF IMMU-KEY ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
How to Replace NATS Antenna Amp " .
OK or NG OK >> GO TO 3
NG >> Reinstall NATS antenna amp. correctly. Yes >> Ignition key ID chip is malfunctioning.
• Replace the ignition key
• Perform initialization with CONSULT-III For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> GO TO 4 OK >> GO TO 5
NG >> Check the following. • 20A fuse [No. 53, located in IPDM E/R]
• Harness for open or short between fuse and NATS
antenna amp.

“ ID DISCORD IMM-ECM ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
Yes >> • Start engine. (END)
• (System initialization had not been completed.)
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization with CONSULT-III For initialization, refer to “CONSULT-III Operation Manual NATS”
Diagnosis Procedure 4 INFOID:0000000004305147
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP” OK >> GO TO 2
NG >> Replace fuse. OK >> Inspection End.
NG >> GO TO 3 OK >> GO TO 4
NG >> Check harness for open or short between fuse and com- bination meter (security).