POWER SUPPLY AND GROUND CIRCUITWT-35
< DTC/CIRCUIT DIAGNOSIS >
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Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair harness or connector.
Terminal No. Signal nameFuses and fusible link No.
37 Battery power supply 8 (10A)
42 12 (10A)
50 G (40A)
11 Ignition switch ACC or ON 18 (10A)
38 Ignition switch ON or START 2 (10A)
BCMGround Ignition switch position
Connector Terminal
—OFF
ACC ON
M18 11
0 V
Battery voltage
Battery voltage
37
Battery voltage
38 0 V0 V
M19 42
Battery voltage Battery voltage
50
BCM GroundContinuity
Connector Terminal
M19 55—Yes
Revision: August 2015 2016 Versa Note
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LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON
WT-37
< SYMPTOM DIAGNOSIS >
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LOW TIRE PRESSURE WARNIN G LAMP DOES NOT TURN ON
Diagnosis ProcedureINFOID:0000000012432458
NOTE:
The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Activate and display TPMS transmitter IDs
• Display tire pressure reported by the TPMS transmitter
• Read TPMS DTCs
• Register TPMS transmitter IDs
1.PERFORM SELF DIAGNOSTIC RESULT
Perform “SELF DIAGNOSTIC RESULT”.
Is DTC
“U1000” detected?
YES >> Malfunction in CAN communication system. Refer to LAN-56, "Diagnosis Procedure".
NO >> GO TO 2
2.CHECK COMBINATION METER
Check combination meter operation. Refer to MWI-18, "
CONSULT Function (METER/M&A)" (type A) or MWI-
71, "CONSULT Function (METER/M&A)" (type B).
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-74, "Removal and Installation" (with Intelligent Key system) or BCS-
137, "Removal and Installation" (without Intelligent Key system).
NO >> Replace combination meter. Refer to MWI-54, "
Removal and Installation" (type A) or MWI-115,
"Removal and Installation" (type B).
Revision: August 2015 2016 Versa Note
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SEC-8
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
COMPONENT PARTS
3. ABS actuator and electric unit (control unit) ABS actuator and electric unit (control unit)
transmits the vehicle speed signal to BCM via
CAN communication.
BCM also receives the vehicle speed signal
from the combination meter via CAN commu-
nication. BCM compares both signals to de-
tect the vehicle speed.
Refer to
BRC-8, "
ABS Actuator and Electric
Unit (Control Unit)" for detailed installation lo-
cation.
4. Intelligent Key warning buzzer Intelligent Key warning buzzer warns the us-
er, who is outside the vehicle, of operation
confirmation according to Intelligent Key op-
eration and door request switch operation, or
of an inappropriate operation.
5. Transmission range switch Transmission range switch detects the CVT
shift selector lever position.
6. IPDM E/R Starter control relay is integrated in IPDM E/R
and used for the engine starting function.
Starter relay is controlled by BCM, and starter
control relay is controlled by IPDM E/R while
communicating with BCM. IPDM E/R sends
the starter control rela
y and starter relay sta-
tus signal to BCM.
7. BCM BCM controls INTELLIGENT KEY SYSTEM
(ENGINE START FUNCTION), NISSAN VE-
HICLE IMMOBILIZER SYSTEM-NATS [NVIS
(NATS)] and VEHICLE SECURITY SYSTEM.
BCM performs the ID verification between
BCM and Intelligent Key when the Intelligent
Key is carried into the detection area of inside
key antenna, and push-button ignition switch
is pressed. If the ID verification result is OK,
ignition switch operation is available.
Then, when the ignition switch is turned ON,
BCM performs ID verification between BCM
and ECM. If the ID verification result is OK,
ECM can start engine.
Refer to
BCS-6, "
BODY CONTROL SYSTEM
: Component Parts Location" for detailed in-
stallation location.
8. Clutch interlock switch Clutch interlock switch detects that clutch
pedal is depressed, and then transmits ON/
OFF signal to the BCM.
9. Stop lamp switch Stop lamp switch detects that brake pedal is
depressed, and then transmits ON/OFF sig-
nal to the BCM.
10. Main power window and door lock/unlock switch Door lock and unlock switch is integrated into
the main power window and door lock/unlock
switch.
Door lock and unlock switch transmits door
lock/unlock operation signal to BCM.
Refer to
PWC-7, "
Main Power Window And
Door Lock/Unlock Switch".
11. CVT shift selector (park position switch) Park position switch is integrated into the
CVT shift selector and detects that the selec-
tor lever is in the P (park) position, then trans-
mits ON/OFF signal to the BCM and IPDM E/
R.
No.
Component Function
Revision: August 2015 2016 Versa Note
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COMPONENT PARTSSEC-9
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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CVT Shift Selector (Park Position Switch)INFOID:0000000012430325
Park position switch detects that CVT shift selector is in the P (Park) position and then transmits the signal to
BCM and IPDM E/R.
BCM confirms the CVT shift selector position with the following 5 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P (Park) position signal from IPDM E/R (CAN)
• P/N position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the CVT shift selector position with the following 3 signals:
• P (Park) position signal from CVT shift selector (park position switch)
• P/N position signal from TCM
• P/N position signal from BCM (CAN)
BCMINFOID:0000000012430326
BCM controls INTELLIGENT KEY SYSTEM (ENGINE START FUNCTIO N), NISSAN VEHICLE IMMOBI-
LIZER SYSTEM-NATS (NATS) and VEHICLE SECURITY SYSTEM.
BCM performs the ID verification between BCM and Intelligent Key when the Intelligent Key is carried into the
detection area of inside key antenna and push-button ignition swit ch is pressed. If the ID verification result is
OK, push-button ignition switch operation is available.
Then, when the power supply position is turned ON, BCM performs ID verification between BCM and ECM. If
the ID verification result is OK, ECM can start engine.
ECMINFOID:0000000012430327
ECM controls the engine.
12. Front door switch LH Door switch detects door open/close condi-
tion and then transmits ON/OFF signal to
BCM.
13. Rear door switch LH Door switch detects door open/close condi-
tion and then transmits ON/OFF signal to
BCM.
14. Inside key antenna (trunk room) Inside key antenna (trunk room) detects
whether Intelligent Key is inside the vehicle or
not, and then transmits the signal to the BCM.
Refer to SEC-10, "
Inside Key Antenna".
15. Inside key antenna (console) Inside key antenna (console) detects whether
Intelligent Key is inside the vehicle or not, and
then transmits the signal to the BCM.
Refer to SEC-10, "
Inside Key Antenna".
16. Push-button ignition switch Push-button ignition switch has push switch
inside which detects that push-button ignition
switch is pressed, and then transmits ON/
OFF signal to BCM. BCM changes the igni-
tion switch position with the operation of
push-button ignition switch. BCM maintains
the ignition switch position status while push-
button ignition switch is not operated.
17. NATS antenna amp. ID verification is performed between the BCM
and the transponder integrated into the Intel-
ligent Key via the NATS antenna amp.
18. Remote keyless entry receiver Remote keyless entry receiver receives but-
ton operation signal and key ID signal of Intel-
ligent Key, and them transmits them to the
BCM.
Refer to
SEC-10, "
Remote Keyless Entry Re-
ceiver".
No. Component Function
Revision: August 2015
2016 Versa Note
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SEC-10
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
COMPONENT PARTS
When power supply position is turned ON, BCM starts
communication with ECM and performs the ID verifica-
tion between BCM and ECM.
If the verification result is OK, the engine can start. If the verification result is invalid, the engine can not start.
IPDM E/RINFOID:0000000012430328
IPDM E/R has the starter relay and starter control relay inside. Starter relay and starter control relay are used
for the engine starting function. IPDM E/R controls these relays while communicating with BCM.
NATS Antenna Amp.INFOID:0000000012430329
The ID verification is performed between BCM and transponder in Intelligent Key via NATS antenna amp.
when Intelligent Key backside is contacted to push-button igni tion switch in case that Intelligent Key battery is
discharged. If the ID verification result is OK, the operation of starting engine is available.
Combination MeterINFOID:0000000012430330
Combination meter transmits the vehicle speed signal to BCM via CAN communication.
BCM also receives the vehicle speed signal from ABS ac tuator and electric unit (control unit) via CAN commu-
nication. BCM compares both signals to detect the vehicle speed.
Door SwitchINFOID:0000000012430331
Door switch detects door open/close conditi on and then transmits ON/OFF signal to BCM.
Outside Key AntennaINFOID:0000000012430332
Outside key antenna detects whether Intelligent Key is outside the vehicle and transmits the signal to BCM.
Three outside key antennas are installed in the front outside handle LH, front outside handle RH and rear
bumper.
Inside Key AntennaINFOID:0000000012430333
Inside key antenna detects whether Intelligent Key is inside the vehicle and transmits the signal to BCM.
Three inside key antennas are installed in the instrument center, console and trunk room.
Remote Keyless Entry ReceiverINFOID:0000000012430334
Remote keyless entry receiver receives each button oper ation signal and electronic key ID signal from Intelli-
gent Key and then transmits the signal to BCM.
Intelligent KeyINFOID:0000000012430335
Each Intelligent Key has an individual electronic ID and transmits the ID signal by request from BCM.
Carrying the Intelligent Key whose ID is registered in BC M, the driver can perform, remote start, door lock/
unlock operation, remote liftgate, panic alarm and push-button ignition switch operation.
Push-button Ignition SwitchINFOID:0000000012430336
Push-button ignition switch detects that push-button is pressed and then transmits the signal to BCM. BCM
changes the power supply position with the operation of push-button ignition switch. BCM maintains the power
supply position status while push-button is not operated.
Security Indicator LampINFOID:0000000012430337
Security indicator lamp is located on combination meter.
Security indicator lamp blinks when power supply positi on is any position other than ON to warn that NISSAN
VEHICLE IMMOBILIZER SYSTEM-NATS (NATS) is on board.
Starter RelayINFOID:0000000012430338
Engine starting system functions by controlling both starter relay and starter control relay.
Starter relay is controlled by BCM, and starter contro l relay is controlled by IPDM E/R on request from BCM.
IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.
Revision: August 2015 2016 Versa Note
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SYSTEMSEC-13
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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Refer to SEC-15, "NISSAN ANTI-THEFT SYSTEM : System Description" for any functions other than engine
start function of Intelligent Key system.
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
The transponder (the chip for NATS ID verification) is integrated into the Intelligent Key. (For the con-
ventional models, it is integrated into the mechanical key.) Therefore, ID verification cannot be per-
formed by mechanical key only.
In that case, NATS ID verification can be perfor med when Intelligent Key backside is contacted to
push-button ignition switch while brake pedal is depressed. If verification result is OK, engine can be
started.
OPERATION WHEN INTELLIGENT KEY IS CARRIED
1. When the push-button ignition switch is pressed, the BCM activates the inside key antenna and transmits the request signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and transmits the Intelligent Key ID signal to the BCM.
3. BCM receives the Intelligent Key ID signal via remote keyless entry receiver and verifies it with the regis-
tered ID.
4. BCM turns ACC relay ON and transmits the i gnition power supply ON signal to IPDM E/R.
5. IPDM E/R turns the ignition relay ON and starts the ignition power supply.
6. IPDM E/R turns the starter control relay ON for engine starting in advance.
7. BCM detects the selector lever position and brake pedal operation condition.
8. BCM transmits the starter request signal to IPDM E/R and turns the starter relay ON if BCM judges that the engine start condition* is satisfied.
9. Power supply is supplied through the starter relay and the starter control relay to operate the starter motor. CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp on the combina-
tion meter illuminates. At that time, the engine cannot be started.
10. When BCM receives feedback signal from ECM indicating that the engine is started, the BCM transmits a stop signal to IPDM E/R and stops cranking by turning OFF the starter motor relay. (If engine start is
unsuccessful, cranking stops aut omatically within 5 seconds.)
CAUTION:
When the Intelligent Key is carried outside of th e vehicle (inside key antenna detection area) while
the power supply is in the ACC or ON position, even if the engine start condition* is satisfied, the
engine cannot be started.
*: For the engine start condition, refer to “IGNIT ION SWITCH POSITION CHANGE TABLE BY PUSH-BUT-
TON IGNITION SWITCH OPERATION”.
OPERATION RANGE
Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine may not start
when Intelligent Key is on instrument panel or in glove box.
ENGINE START OPERATION WHEN INTELLIGENT KEY IS CONTACTED TO PUSH-BUTTON IG-
NITION SWITCH
When Intelligent Key battery is discharged, NATS ID verification between transponder in Intelligent Key and
BCM is performed when Intelligent Key backside is cont acted to push-button ignition switch while brake pedal
is depressed. If the verification result is OK, engine can be started.
IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The ignition switch position can be changed by the following operations:
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna or when Intelligent Key backside is contacted to push-button ignition switch, it is equivalent to the operations below:
• When starting the engine, the BCM monitors under the engine start conditions:
- Brake pedal operation condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Revision: August 2015 2016 Versa Note
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SEC-16
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
PRECAUTIONS FOR KEY REGISTRATION
• The ID registration is a procedure that erases the cu
rrent NATS ID once, and then registers a new ID. There-
fore before starting the registration operation, collect all registered Intelligent Keys from the customer.
• When registering the Intelligent Key, perform only one procedure to simultaneously register both IDs (NATS
ID and Intelligent Key ID).
SECURITY INDICATOR LAMP
• Security indicator lamp warns that the vehicle is equipped with NATS.
• Security indicator lamp always blinks when the i gnition switch is in any position other than ON.
NOTE:
Because security indicator lamp is highly efficient, the battery is barely affected.
ENGINE START OPERATION WHEN INTELLIGENT KEY IS CONTACTED TO PUSH-BUTTON IG-
NITION SWITCH
1. When brake pedal is depressed while selector lever is in the P position the BCM activates NATS antenna amp. that is located behind push-button ignition switch.
2. When Intelligent Key (transponder built-in) backsi de is contacted to push-button ignition switch, BCM
starts NATS ID verification between BCM and Intelligent Key (transponder built-in) via NATS antenna
amp.
3. When NATS ID verification result is OK, buzzer in combination meter sounds and BCM transmits the result to ECM.
4. BCM turns ACC relay ON and transmits ignition power supply ON signal to IPDM E/R.
5. IPDM E/R turns the ignition relay ON and starts the ignition power supply.
6. IPDM E/R turns the starter control relay ON for engine starting in advance.
7. BCM detects that the selector leve r position and brake pedal operation condition.
8. BCM transmits starter request signal to IPDM E/R and turns the starter relay ON if BCM judges that the
engine start condition* is satisfied.
9. Power supply is supplied through the starter relay and the starter control relay to operate the starter motor.
10. When BCM receives feedback signal from ECM indica ting that the engine is started, BCM transmits a
stop signal to IPDM E/R and stops cranking by turning off the starter motor relay. (If engine start is unsuc-
cessful, cranking stops automatically within 5 seconds.)
*: For the engine start condition, refer to “IGN ITION SWITCH POSITION CHANGE TABLE BY PUSH-BUT-
TON IGNITION SWITCH OPERATION” below.
IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The ignition switch position can be changed by the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna or when Intelligent Key backside is
contacted to push-button ignition switch, it is equivalent to the operations below:
• When starting the engine, the BCM monitors under the engine start conditions:
- Brake pedal operation condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Power supply position Condition
Push-button ignition switch opera-
tion frequency
Selector lever Brake pedal operation condi-
tion
OFF → ACC —Not depressed 1
OFF → ACC → ON —Not depressed 2
OFF → ACC → ON → OFF — Not depressed 3
OFF → START
ACC → START
ON → START P or N position
Depressed 1
Engine is running → OFF — — 1
Revision: August 2015 2016 Versa Note
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SEC-18
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Fu
nction (BCM - COMMON ITEM)INFOID:0000000012542530
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
ECU Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
ECU Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN DIAG SUPPORT MNTR
Door lock
DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM× × ×××
Immobilizer IMMU ××××
Interior room lamp battery saver BATTERY SAVER ×××
Vehicle security system THEFT ALM ××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
Panic alarm system PANIC ALARM ×
Revision: August 2015 2016 Versa Note
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