2008 NISSAN LATIO ignition

COMBINATION METERS
DI-19
< SERVICE INFORMATION >
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OK >> Check fuel level sensor unit installation, and check whether the float arm interferes or binds with
any of the internal components in the fuel tank. Repair or replace malfunctioning part, if neces-
sary.
NG >> Replace fuel level sensor unit.
Fuel Gauge Fluctuates, Indicates Wrong Value, or VariesINFOID:0000000001704505
1.CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.
Does the indication value vary only during driving or at the at the instant of stopping?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble
diagnosis.
Fuel Gauge Does Not Move to Full-positionINFOID:0000000001704506
1.OBSERVE FUEL GAUGE
Does it take a long time for the pointer to move to FULL position?
YES or NO
YES >> GO TO 2.
NO >> GO TO 3.
2.IDENTIFY FUELING CONDITION
Was the vehicle fueled with the ignition switch ON?
YES or NO
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.
3.OBSERVE VEHICLE POSITION
Is the vehicle parked on an incline?
YES or NO
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4.OBSERVE FUEL GAUGE POINTER
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES or NO
YES >> Check the components. Refer to DI-19, "Electrical Component Inspection" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
DTC [U1000] CAN Communication CircuitINFOID:0000000001704507
Symptom: Display CAN COMM CIRC [U1000] at the result of self-diagnosis for combination meter.
1.CHECK CAN COMMUNICATION
1. Select "SELF-DIAG RESULTS" mode for "METER/M&A" with CONSULT-III.
2. Print out CONSULT-III screen.
>> Go to "CAN SYSTEM". Refer to LAN-15, "
Trouble Diagnosis Flow Chart".
Electrical Component InspectionINFOID:0000000001704508
FUEL LEVEL SENSOR UNIT CHECK
For removal, refer to FL-5, "Removal and Installation" .
Check Fuel Level Sensor Unit and Fuel Pump

DI-30
< SERVICE INFORMATION >
WARNING LAMPS
Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)
INFOID:0000000001704512
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.
LKWA0359E

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-41
< SERVICE INFORMATION >
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WARNING CHIME
Component Parts and Harness Connector LocationINFOID:0000000001704521
System DescriptionINFOID:0000000001704522
• Buzzer for warning chime system is installed in the combination meter.
• The buzzer sounds when combination meter receives buzzer output signal with CAN communication line.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
• through 40A fusible link (letter g, located in the fuse and fusible link box)
• to BCM terminal 70,
1. Combination meter M24 2. BCM M18, M19, M20 (view with
glove box removed)3. Intelligent Key unit M52 (with Intelli-
gent Key)
4. Key switch and key lock solenoid
M27 (without Intelligent Key)5. Key switch and ignition knob switch
M73 (with Intelligent Key)6. Combination switch (lighting switch)
M28
7. Front door switch LH B8 8. Parking brake switch M17
AWMIA0117ZZ

DI-42
< SERVICE INFORMATION >
WARNING CHIME
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in the fuse block (J/B)]
• to combination meter terminal 27.
With ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38,
• through 10A fuse [No. 3, located in the fuse block (J/B)]
• to combination meter terminal 28.
Ground is supplied
• to BCM terminal 67 and
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the key switch, and the ignition switch in the OFF or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with
CAN communication line.
• When combination meter receives key warning signal, it sounds warning chime.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the key switch, and the ignition switch in the LOCK or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with
CAN communication line.
• When combination meter receives key warning signal, it sounds warning chime.
When Intelligent Key Is Carried With The Driver
Refer to BL-76, "System Description".
LIGHT WARNING CHIME
The warning chime sounds, when driver's door is opened (door switch ON) with lighting switch ON and the
ignition switch is in any position other than ON or START.
NOTE:
BCM detected lighting switch in the 1st or 2nd position, refer to LT-62, "
Combination Switch Reading Func-
tion".
• BCM detects headlamps are illuminated, and sends light warning signal to combination meter with CAN
communication lines.
WKIA5463E
WKIA5464E

DI-46
< SERVICE INFORMATION >
WARNING CHIME
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
SELF-DIAG RESULTS
Display Item List
NOTE:
If “CAN communication [U1000]” is indicated, after printing the monitor item, go to “LAN system”. Refer to
LAN-15, "
Trouble Diagnosis Flow Chart".
Trouble DiagnosisINFOID:0000000001704526
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-41, "
System Description".
3. Perform the preliminary inspection. Refer to "PRELIMINARY INSPECTION".
4. According to symptom chart, repair or replace the cause of the malfunction. Refer to "SYMPTOM
CHART".
5. Does warning chime system operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6. Inspection End.
PRELIMINARY INSPECTION
BCM diagnostic
test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Monitored item ALL SIGNALSSELECTION
FROM MENUContents
IGN ON SW X X Indicates [ON/OFF] condition of ignition switch.
KEY ON SW X X Indicates [ON/OFF] condition of key switch.
DOOR SW-DR X X Indicates [ON/OFF] condition of front door switch LH.
LIGHT SW 1ST X X Indicates [ON/OFF] condition of lighting switch.
BUCKLE SW X X Indicates [ON/OFF] condition of seat belt buckle switch LH.
Test item Malfunction is detected when···
IGN KEY WARN ALM This test is able to check key warning chime operation.
LIGHT WARN ALM This test is able to check light warning chime operation.
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation.
Display item [Code] Malfunction is detected when...
CAN communication [U1000] Malfunction is detected in CAN communication.

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