2007 NISSAN LATIO warning light

WARNING CHIME
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Revision: June 20062007 Versa
WARNING CHIMEPFP:24814
Component Parts and Harness Connector LocationEKS00IB7
System DescriptionEKS00I0Z

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,

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
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
WKIA5462E

DI-48
WARNING CHIME
Revision: June 20062007 Versa

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-90, "WARNING CHIME/BUZZER/LAMPS FUNCTION" .
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-68, "
Combination Switch Reading Function"
.

BCM detects headlamps are illuminated, and sends light warning signal to combination meter with CAN
communication lines.
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WKIA5464E

WARNING CHIME
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Revision: June 20062007 Versa

When the combination meter receives light warning signal, it sounds warning chime.
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DI-52
WARNING CHIME
Revision: June 20062007 Versa
Terminals and Reference Values for BCMEKS00I12
Refer to BCS-12, "Terminals and Reference Values for BCM" .
CONSULT-II Function (BCM)EKS00I13
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
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-44, "
TROUBLE DIAGNOSIS" .
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
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Trouble DiagnosisEKS00I14
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-47, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-53, "
PRELIMINARY INSPECTION" .
4. According to symptom chart, repair or replace the cause of the malfunction. Refer to DI-53, "
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
1. CHECK BCM
Perform self-diagnosis of BCM. Refer to DI-52, "
CONSULT-II 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-14, "
CONSULT-II Function (METER)" .
Self
-diagnostic results content
No malfunction detected>> Inspection End.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
SYMPTOM CHART
Symptom Diagnoses/Service procedure
All warning chime systems do not activate.Perform the following inspections.

DI-54, "Combination Meter Buzzer Circuit Inspection"

DI-55, "Front Door Switch LH Signal Inspection"
If above check is OK, replace BCM. Refer to BCS-25, "Removal
and Installation of BCM" .
Key warning chime
does not activate.Without Intelligent Key.Perform DI-56, "
Key Switch Signal Inspection (Without Intelligent
Key)" .
If above check is OK, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
With Intelligent Key, when mechanical key
is used.Perform DI-58, "
Key Switch and Ignition Knob Switch Signal
Inspection (With Intelligent Key, When Mechanical Key Is Used)" .
If above check is OK, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .
With Intelligent Key, when Intelligent Key
is carried with the driver.Refer to BL-120, "
WARNING CHIME/BUZZER FUNCTION MAL-
FUNCTION" .
Light warning chime does not activate.Perform DI-59, "
Lighting Switch Signal Inspection" .
If above check is OK, replace BCM. Refer to BCS-25, "
Removal
and Installation of BCM" .

DI-54
WARNING CHIME
Revision: June 20062007 Versa
Combination Meter Buzzer Circuit InspectionEKS00I15
1. CHECK CHIME OPERATION
1. Select “BUZZER” of “BCM” on CONSULT-II.
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-53,
"SYMPTOM CHART" .
NO >> GO TO 2.
2. CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER” on CONSULT-II.
2. Turn on hazard switch or lighting switch while monitoring
“BUZZER” of “DATA MONITOR” and check operation status.
OK or NG
OK >> Check battery power supply circuit of combination
meter. If OK, replace combination meter. Refer to IP-19,
"COMBINATION METER" .
NG >> Replace BCM. Refer to BCS-25, "
Removal and Installation of BCM" .
SKIA6331E
“BUZZER”
While hazard switch or
lighting switch is ON : ON and OFF repeatedly
Except above : OFF
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WARNING CHIME
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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
Check voltage between key switch and ignition knob switch harness
connector and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-25, "Removal and Installa-
tion of BCM" .
NG >> Repair harness or connector.
Lighting Switch Signal InspectionEKS00I19
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-53, "SYMP-
TOM CHART" .
NG >> Check the lighting switch. Refer to LT- 6 8 , "
Combination
Switch Inspection" .
AB
Continuity
Connector Terminal Connector Terminal
M1837M73 1 Yes
A
GroundContinuity
Connector Terminal
M18 37 No
PKIC0723E
Te r m i n a l s
Voltage
(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
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EC-62Revision: June 2006
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2007 Versa
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by MIL lighting up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected, and demands the
driver to repair the malfunction.
MIL Flashing Without DTC
When any SRT codes are not set, MIL may flash without DTC. For the details, refer to EC-56, "How to Display
SRT Status" .
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:

It is better to count the time accurately with a clock.

It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.

Always ECM returns to Diagnostic Test Mode I after ignition switch is turned OFF.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts
blinking.
Diagnostic Test
ModeKEY and ENG.
Statu sFunction Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION
WARNINGThis is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MIL will light up to inform the driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.

Misfire (Possible three way catalyst damage)

One trip detection diagnoses
Mode II Ignition switch in
ON position
Engine stoppedSELF-DIAGNOSTIC
RESULTSThis function allows DTCs and 1st trip DTCs to be read.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut