PRECAUTIONSEM-3
< PRECAUTION > [HR16DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012431679
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Procedure without Cowl Top CoverINFOID:0000000012431680
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Draining Engine CoolantINFOID:0000000012431681
Drain engine coolant and engine oil when the engine is cooled.
Disconnecting Fuel PipingINFOID:0000000012431682
• Before starting work, check no fire or spark producing items are in the work area.
• Release fuel pressure before disconnecting and disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Removal and DisassemblyINFOID:0000000012431683
• When instructed to use SST, use specified tools. Alwa ys be careful to work safely, avoid forceful or unin-
structed operations.
• Use care to avoid damage to mating or sliding surfaces.
PIIB3706J
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-2
ELECTRIC IGNITION SYSTEM : System De-
scription ............................................................... ...
35
AIR CONDITIONING CUT CONTROL ................... ...36
AIR CONDITIONING CUT CONTROL : System
Diagram ..................................................................
37
AIR CONDITIONING CUT CONTROL : System
Description ..............................................................
37
CAN COMMUNICATION ........................................ ...38
CAN COMMUNICATION : System Description ......38
COOLING FAN CONTROL .................................... ...38
COOLING FAN CONTROL : System Diagram .......38
COOLING FAN CONTROL : System Description ...38
EVAPORATIVE EMISSION SYSTEM .................... ...40
EVAPORATIVE EMISSION SYSTEM : System
Diagram ............................................................... ...
40
EVAPORATIVE EMISSION SYSTEM : System
Description ........................................................... ...
40
INTAKE VALVE TIMING CONTROL ..................... ...41
INTAKE VALVE TIMING CONTROL : System Di-
agram .................................................................. ...
41
INTAKE VALVE TIMING CONTROL : System De-
scription ............................................................... ...
41
EXHAUST VALVE TIMING CONTROL ................. ...42
EXHAUST VALVE TIMING CONTROL : System
Diagram ............................................................... ...
42
EXHAUST VALVE TIMING CONTROL : System
Description ........................................................... ...
42
ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE ..............................................
43
ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE : S ystem Diagram ..............
43
ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE : S ystem Description .........
43
FUEL FILLER CAP WARNING SYSTEM .............. ...44
FUEL FILLER CAP WARNING SYSTEM :
System Diagram ....................................................
44
FUEL FILLER CAP WARNING SYSTEM : System
Description ........................................................... ...
44
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...45
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Diagram ............................................
45
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description .......................................
45
OPERATION ......................................................47
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...47
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : Switch Name and Function ...........................
47
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....49
Diagnosis Description .......................................... ...49
GST (Generic Scan Tool) .......................................49
DIAGNOSIS SYSTEM (ECM) ............................50
DIAGNOSIS DESCRIPTION .................................. ...50
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic ........................
50
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data .......................................................... ...
50
DIAGNOSIS DESCRIPTION : Counter System ......51
DIAGNOSIS DESCRIPTION : Driving Pattern ..... ...54
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code .................................................. ...
55
DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) ..................
56
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ...
57
On Board Diagnosis Function .................................57
CONSULT Function ................................................60
ECU DIAGNOSIS INFORMATION .............71
ECM ...................................................................71
Reference Value .................................................. ...71
Fail Safe .................................................................83
DTC Inspection Priority Chart ...............................85
DTC Index ..............................................................87
Test Value and Test Limit .......................................90
WIRING DIAGRAM ....................................99
ENGINE CONTROL SYSTEM ........................ ...99
Wiring Diagram .................................................... ...99
BASIC INSPECTION .................................120
DIAGNOSIS AND REPAIR WORKFLOW ...... ..120
Work Flow ............................................................ .120
Diagnostic Work Sheet .........................................123
ADDITIONAL SERVICE WHEN REPLACING
ECM ..................................................................
125
Description ........................................................... .125
Work Procedure ....................................................125
VIN REGISTRATION ........................................127
Description ........................................................... .127
Work Procedure ....................................................127
ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING ............................................ ..
128
Description ........................................................... .128
Work Procedure ....................................................128
THROTTLE VALVE CLOSED POSITION
LEARNING .......................................................
129
Description ........................................................... .129
Work Procedure ....................................................129
IDLE AIR VOLUME LEARNING .......................130
Description ........................................................... .130
Work Procedure ....................................................130
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-8
< PRECAUTION >[HR16DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012431263
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
On Board Diagnosti c (OBD) System of Engine and CVTINFOID:0000000012431265
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of re lated switches, sensors, solenoid valves, etc. will
cause the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock- ing type harness connector. For descripti on and how to disconnect, refer to PG-9, "
Harness Connec-
tor".
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to li ght up due to the short circuit.
• Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the fuel injection system, etc.
• Be sure to erase the unnecessary malfunction info rmation (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
Revision: August 2015 2016 Versa Note
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EC-38
< SYSTEM DESCRIPTION >[HR16DE]
SYSTEM
CAN COMMUNICATION
CAN COMMUNICATION : System DescriptionINFOID:0000000012431315
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s
peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to LAN-30, "
CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart", about CAN com-
munication for detail.
COOLING FAN CONTROL
COOLING FAN CONTROL : System DiagramINFOID:0000000012431316
COOLING FAN CONTROL : System DescriptionINFOID:0000000012431317
INPUT/OUTPUT SIGNAL CHART
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
SYSTEM DESCRIPTION (CVT MODELS)
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pres-
sure, air conditioner ON signal. Then contro l system has 3-step control [HIGH/LOW/OFF].
JSBIA0321GB
SensorInput signal to ECM ECM functionActuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed
*1
Piston position
Cooling fan speed request
signalIPDM E/R
↓
Cooling fan relay
↓
Cooling fan motor
Engine coolant temperature sensor Engine coolant temperature
Refrigerant pressure sensor
Refrigerant pressure
Battery Battery voltage
*1
Combination meterVehicle speed*2
BCMA/C ON signal*2
Blower fan signal*2
Revision: August 2015
2016 Versa Note
cardiagn.com
ENGINE CONTROL SYSTEMEC-99
< WIRING DIAGRAM > [HR16DE]
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WIRING DIAGRAM
ENGINE CONTROL SYSTEM
Wiring DiagramINFOID:0000000012431347
ABBWA1627GB
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2016 Versa Note
cardiagn.com
EC-100
< WIRING DIAGRAM >[HR16DE]
ENGINE CONTROL SYSTEM
ABBWA1628GB
Revision: August 2015
2016 Versa Note
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ENGINE CONTROL SYSTEMEC-101
< WIRING DIAGRAM > [HR16DE]
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ABBWA1564GB
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EC-102
< WIRING DIAGRAM >[HR16DE]
ENGINE CONTROL SYSTEM
ABBWA1629GB
Revision: August 2015
2016 Versa Note
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