2008 NISSAN LATIO turn signal

WARNING LAMPS
DI-31
< SERVICE INFORMATION >
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2.CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R".
NG >> GO TO 3.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Check oil pressure switch. Refer to DI-32, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector (A) and
oil pressure switch harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector.
5.CHECK CAN COMMUNICATION
Select “METER/M&A” on CONSULT-III, and perform self-diagnosis of combination meter.
Self
-diagnostic results content
No malfunction detected>>GO TO 6.
Malfunction detected>> Check applicable parts, and repair or replace as necessary.
6.CHECK COMBINATION METER INPUT SIGNAL
Select “METER/M&A” on CONSULT-III. Operate ignition switch with “OIL W/L” of “DATA MONITOR” and
check operation status.
OK or NG
OK >> Replace combination meter. Refer to IP-11, "Removal and Installation".
NG >> Replace IPDM E/R. Refer to PG-26, "
Removal and Installation of IPDM E/R".
Te r m i n a l s
ConditionVoltage (Ap-
prox.) (+)
(–)
IPDM E/R
connectorTe r m i n a l
E46 37 Ground Engine stopped 0 V
WKIA5458E
AB
Continuity
Connector Terminal Connector Terminal
E46 37 F32 1 Yes
WKIA5459E
“OIL W/L”
When ignition switch is in ON
position (Engine stopped.): ON
When engine running : OFF

DI-32
< SERVICE INFORMATION >
WARNING LAMPS
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)
INFOID:0000000001704513
NOTE:
For oil pressure inspection, refer to LU-6, "
Inspection".
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-19, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-32, "
Component Inspection".
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector.
5.CHECK IPDM E/R (CONSULT-III)
Perform self-diagnosis of IPDM E/R. Refer to PG-17, "
CONSULT-III Function (IPDM E/R)".
Self
-diagnostic results content
No malfunction detected>>Replace combination meter. Refer to IP-11, "Removal and Installation".
Malfunction detected>> Check applicable parts, and repair or replace as necessary.
Component InspectionINFOID:0000000001704514
OIL PRESSURE SWITCH
Te r m i n a l s
Voltage (Approx.) (+)
(–)
Oil pressure switch
connectorTe r m i n a l
F32 1 Ground 12 V
PKIC1144E
IPDM E/R connector Terminal
GroundContinuity
E46 37 No
WKIA5460E

WARNING CHIME
DI-47
< SERVICE INFORMATION >
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1.CHECK BCM
Perform self-diagnosis of BCM. Refer to DI-45, "
CONSULT-III Function (BCM)".
Self
-diagnostic results content
No malfunction detected>>GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
2.CHECK COMBINATION METER
Perform self-diagnosis of combination meter. Refer to DI-13, "
CONSULT-III Function (METER/M&A)".
Self
-diagnostic results content
No malfunction detected>> Inspection End.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
SYMPTOM CHART
Combination Meter Buzzer Circuit InspectionINFOID:0000000001704527
1.CHECK CHIME OPERATION
1. Select “BUZZER” of “BCM” on CONSULT-III.
2. Perform “LIGHT WARN ALM” or “IGN KEY WARN ALM” of “ACTIVE TEST”.
Does chime sound?
YES >> Combination meter buzzer circuit is OK. Return to DI-46, "Trouble Diagnosis".
NO >> GO TO 2.
2.CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Turn on hazard switch or lighting switch while monitoring “BUZZER” of “DATA MONITOR” and check
operation status.
OK or NG
Symptom Diagnoses/Service procedure
All warning chime systems do not activate.Perform the following inspections.
•DI-47, "
Combination Meter Buzzer Circuit Inspection"
•DI-48, "Front Door Switch LH Signal Inspection"
If above check is OK, replace BCM. Refer to BCS-18, "Removal
and Installation of BCM".
Key warning chime
does not activate.Without Intelligent Key.Perform DI-49, "
Key Switch Signal Inspection (Without Intelligent
Key)".
If above check is OK, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
With Intelligent Key, when mechanical key
is used.Perform DI-50, "
Key Switch and Ignition Knob Switch Signal In-
spection (With Intelligent Key, When Mechanical Key Is Used)".
If above check is OK, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
With Intelligent Key, when Intelligent Key
is carried with the driver.Refer to BL-103, "
Trouble Diagnosis Symptom Chart".
Light warning chime does not activate.Perform DI-52, "
Lighting Switch Signal Inspection".
If above check is OK, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
Parking brake warning chime does not activatePerform the following inspections
•DI-52, "
Parking Brake Switch Signal Inspection"
• XX-XX, "*****"
“BUZZER”
While hazard switch or
lighting switch is ON : ON and OFF repeatedly
Except above : OFF

DI-48
< SERVICE INFORMATION >
WARNING CHIME
OK >> Check battery power supply circuit of combination meter. If OK, replace combination meter. Refer
to IP-11, "
Removal and Installation".
NG >> Replace BCM. Refer to BCS-18, "
Removal and Installation of BCM".
Front Door Switch LH Signal InspectionINFOID:0000000001704528
1.CHECK BCM INPUT SIGNAL
With CONSULT-III
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “DOOR SW-DR” when the driver's door is operated.
Without CONSULT-III
Check voltage between BCM harness connector and ground.
OK or NG
OK >> Front door switch LH signal is OK. Return to DI-46, "Trouble Diagnosis".
NG >> GO TO 2.
2.CHECK FRONT DOOR SWITCH LH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front door switch LH connector.
3. Check continuity between BCM harness connector (A) and front
door switch LH harness connector (B).
4. Check continuity between BCM harness connector (A) and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH LH
Check front door switch LH. Refer to DI-53, "
Electrical Component Inspection".
OK or NG
“DOOR SW-DR”
When driver's door is opened : ON
When driver's door is closed : OFF
Te r m i n a l s
ConditionVol tag e
(Approx.) (+)
(−) BCM
con-
nectorTe r m i -
nal
M19 47 GroundDriver's door
is opened0
Driver's door
is closedBattery voltage
PKIC0719E
AB
Continuity
Connector Terminal Connector Terminal
M19 47 B8 2 Yes
A
GroundContinuity
Connector Terminal
M19 47 No
PKIC0720E

WARNING CHIME
DI-49
< SERVICE INFORMATION >
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OK >> Replace BCM. Refer to BCS-18, "Removal and Installation of BCM".
NG >> Replace front door switch LH.
Key Switch Signal Inspection (Without Intelligent Key)INFOID:0000000001704529
1.CHECK FUSE
Check if the key switch and key lock solenoid 10A fuse [No. 14, located in the fuse block (J/B)] is blown.
OK or NG
OK >> GO TO 2.
NG >> Be sure to repair the cause of malfunction before installing new fuse. Refer to PG-3
.
2.CHECK BCM INPUT SIGNAL
With CONSULT-III
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “KEY ON SW” when the key is operated.
Without CONSULT-III
Check voltage between BCM harness connector and ground.
OK or NG
OK >> Key switch signal is OK. Return to DI-46, "Trouble Diag-
nosis".
NG >> GO TO 3.
3.CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
3. Check continuity between key switch and key lock solenoid ter-
minals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and key lock solenoid.
4.CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.“KEY ON SW”
When key is inserted into ig-
nition key cylinder: ON
When key is removed from
ignition key cylinder: OFF
Te r m i n a l s
ConditionVoltag e
(Approx.) (+)
(−)
BCM
connectorTe r m i n a l
M18 37 GroundKey is inserted Battery voltage
Key is removed 0 V
PKIC0721E
Terminals Condition Continuity
12When key is inserted into ignition key cylinder Yes
When key is removed from ignition key cylinder No
WKIA5466E

WARNING CHIME
DI-51
< SERVICE INFORMATION >
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Check voltage between BCM harness connector and ground.
OK or NG
OK >> Key switch and ignition knob switch signal is OK. Return
to DI-46, "
Trouble Diagnosis".
NG >> GO TO 3.
3.CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check continuity between key switch and ignition knob switch
terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch.
4.CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector (A) and key
switch and ignition knob switch harness connector (B).
3. Check continuity between BCM harness connector (A) and
ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Te r m i n a l s
ConditionVol tag e
(Approx.) (+)
(−)
BCM
connectorTe r m i n a l
M18 37 GroundKey is inserted Battery voltage
Key is removed 0
PKIC0721E
Terminals Condition Continuity
12When key is inserted into ignition key cylinder Yes
When key is removed from ignition key cylinder No
WKIA5466E
AB
Continuity
Connector Terminal Connector Terminal
M1837M73 1 Yes
A
GroundContinuity
Connector Terminal
M18 37 No
PKIC0723E

DI-52
< SERVICE INFORMATION >
WARNING CHIME
Check voltage between key switch and ignition knob switch harness
connector and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-18, "Removal and Installa-
tion of BCM".
NG >> Repair harness or connector.
Lighting Switch Signal InspectionINFOID:0000000001704531
1.CHECK BCM INPUT SIGNAL
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “LIGHT SW 1ST” when the lighting switch is operated.
OK or NG
OK >> Lighting switch signal is OK. Return to DI-46, "Trouble Diagnosis".
NG >> Check the lighting switch. Refer to LT-63, "
Combination Switch Inspection".
Parking Brake Switch Signal InspectionINFOID:0000000001815489
1.CHECK PARKING BRAKE SWITCH SIGNAL INPUT (COMBINATION METER)
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector
M24 terminal 10 and ground.
OK or NG
OK >> Replace combination meter. Refer to DI-20, "Removal and Installation".
NG >> GO TO 2.
2.CHECK PARKING BRAKE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and parking brake switch connector.
Te r m i n a l s
Vo l ta g e
(Approx.) (+)
(−) Key switch and ignition
knob switch connector Te r m i n a l
M73 2 Ground Battery voltage
PKIC0724E
“LIGHT SW 1ST”
Lighting switch (1st position) : ON
Lighting switch (OFF) : OFF
Te r m i n a l s
ConditionVoltag e
(Approx.) (+)
(−) Combination
meter
connectorTe r m i n a l
M24 10 GroundParking brake released Battery voltage
Parking brake applied 0
AWMIA0066GB

AIR CONDITIONING CUT CONTROL
EC-27
< SERVICE INFORMATION >
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AIR CONDITIONING CUT CONTROL
Input/Output Signal ChartINFOID:0000000001702558
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
System DescriptionINFOID:0000000001702559
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
Sensor Input Signal to ECM ECM function Actuator
Air conditioner switch
Air conditioner ON signal*
1
Air conditioner
cut controlAir conditioner relay Accelerator pedal position sensor Accelerator pedal position
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
2
Engine coolant temperature sensor Engine coolant temperature
Battery
Battery voltage*
2
Refrigerant pressure sensor Refrigerant pressure
EPS control unit
Power steering operation*
1
Wheel sensor
Vehicle speed*1