FUEL INJECTOR AND FUEL TUBEEM-45
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• Tighten bolts in numerical order as shown.
5. Connect harness connectors to fuel injectors.
6. Connect harness connectors to intake and ex haust valve timing control solenoid valves.
7. Connect fuel feed tube (engine side):
a. Check for damage or foreign material on the fuel tube and quick connector.
b. Apply new engine oil lightly to area around the top of fuel tube.
c. Align center to insert quick connector straight into fuel tube. • Insert quick connector (1) to fuel tube until the top spool (C) on
fuel tube is inserted completely and the 2nd level spool (D) is
positioned slightly below quick connector bottom end.
CAUTION:
• Hold in position (A) as sh own when inserting fuel tube
into quick connector.
• Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
• Insert until you hear a “click” sound and actually feel
the engagement.
d. To avoid misidentification of engagement with a simi lar sound, pull quick connector hard by hand. Check it
is completely engaged (connected) so that it does not come out from fuel tube.
e. Install quick connector cap (engine side) (1) to quick connector connection.
• Install quick connector cap (engine side) (1) with the sidearrow facing quick connector side (fuel feed tube side) as
shown.
CAUTION:
• Check that the quick connector and fuel tube aresecurely engaged with the qu ick connector cap (engine
side) groove.
• If the quick connector cap (engine side) cannot be installed easily the quick connector may not be con-
nected correctly. Remove and reconnect.
f. Install fuel feed hose to hose clamp.
8. Connect fuel feed tube (floor piping side):
a. Check the connection for damage or any foreign materials.
b. Align the quick connector with the tube, then insert the connector straight into the centralized under floor piping until a click is heard.
: Engine front
JPBIA4132ZZ
(B) : Upright insertion
(E) : Correctly connected
JPBIA2256ZZ
JPBIA4131ZZ
Revision: August 2015 2016 Versa Note
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EM-48
< REMOVAL AND INSTALLATION >[HR16DE]
ROCKER COVER
ROCKER COVER
Exploded ViewINFOID:0000000012431716
Removal and InstallationINFOID:0000000012431717
REMOVAL
1. Remove ignition coil. Refer to
EM-47, "Removal and Installation".
2. Remove fuel tube protector. Refer to EM-40, "
Exploded View".
3. Remove PCV hose from rocker cover.
4. Remove PCV valve (if necessary).
5. Remove rocker cover.
1. Exhaust camshaft position sensor 2. Clip 3. Rocker cover
4. Clamp 5. Hose6. PCV valve
7. O-ring 8. Rocker cover gasket9. Oil filler cap
10. O-ring 11. Intake camshaft position sensor 12. O-ring
A. To intake manifold
AWBIA1604ZZ
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EM-76
< REMOVAL AND INSTALLATION >[HR16DE]
CYLINDER HEAD
CYLINDER HEAD
Exploded ViewINFOID:0000000012431726
Cylinder Head Bolts
Removal and InstallationINFOID:0000000012431727
REMOVAL
NOTE:
When removing components such as hoses, tubes/lines, etc.
, cap or plug openings to prevent fluid from spill-
ing.
1. Release fuel pressure. Refer to EC-137, "
Work Procedure".
2. Drain engine coolant and engine oil. Refer to CO-8, "
Draining Engine Coolant" and LU-8, "Draining".
3. Remove the following components and related parts. • Air duct. Refer to EM-26, "
Removal and Installation".
• Fuel tube and fuel injector. Refer to EM-40, "
Exploded View".
• Water outlet. Refer to CO-24, "
Removal and Installation".
• Exhaust manifold. Refer to EM-31, "
Exploded View".
• Front cover and timing chain. Refer to EM-51, "
Exploded View".
• Camshaft. Refer to EM-60, "
Exploded View".
4. Remove cylinder head loosening bolts in reverse order as shown.
5. Remove cylinder head gasket.
INSTALLATION
JPBIA4097ZZ
1. Cylinder head assembly 2. Cylinder head bolt 3. Washer
4. Cylinder head gasket A. INSTALLATION
(A) : EXH side
(B) : INT side : Engine front
PBIC3732E
Revision: August 2015 2016 Versa Note
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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
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PREPARATIONEC-13
< PREPARATION > [HR16DE]
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Tool name
(TechMate No.)
Description
Leak detector
i.e.: (J-41416) Locates the EVAP leak
EVAP service port adapter
i.e.: (J-41413-OBD) Applies positive pressure through EVAP service port
Fuel filler cap adapter
i.e.: (J-42909) Checks fuel tank vacuum relief valve opening pressure
Socket wrench
(—) Removes and installs engine coolant temperature sen-
sor
Oxygen sensor thread cleaner
i.e.: (J-43897-18), (J-43897-12) Reconditioning the exhaust system threads before in-
stalling a new oxygen sensor. Use with anti-seize lubri-
cant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirconia Ox-
ygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Titania Ox-
ygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM 133AR or
equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating oxygen sensor thread cleaning tool when re-
conditioning exhaust system threads.
S-NT703
S-NT704
ALBIA1353ZZ
S-NT705
AEM488
S-NT779
Revision: August 2015
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COMPONENT PARTSEC-19
< SYSTEM DESCRIPTION > [HR16DE]
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Air Fuel Ratio Sensor 1INFOID:0000000012431272
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise m
easurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
Air Fuel Ratio Sensor 1 HeaterINFOID:0000000012431273
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F s ensor 1 element within the specified range.
Camshaft Position SensorINFOID:0000000012431274
The camshaft position sensor senses the protrusion of camshaft to
identify a particular cylinder. The camshaft position sensor senses
the piston position.
When the crankshaft position sensor system becomes inoperative,
the camshaft position sensor provides various controls of engine
parts instead, utilizing timing of cylinder identification signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic fiel d, the voltage from the sensor
changes.
JMBIA0112GB
PBIB3354E
Sensor Input Signal to ECM ECM functionActuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS) Engine speed
Air fuel ratio (A/F) sensor 1
heater controlAir fuel ratio (A/F) sensor 1
heater
Mass air flow sensor Amount of intake air
PBIA9209J
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SYSTEMEC-31
< SYSTEM DESCRIPTION > [HR16DE]
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ENGINE CONTROL SYSTEM : System DescriptionINFOID:0000000012431308
ECM performs various controls such as fuel
injection control and ignition timing control.
MULTIPORT FUEL INJECTION SYSTEM
Function Reference
Multiport fuel injection system EC-32, "
MULTIPORT FUEL INJECTION SYSTEM : System De-
scription"
Electric ignition system
EC-35, "ELECTRIC IGNITION SYSTEM : System Description"
Air conditioning cut controlEC-37, "AIR CONDITIONING CUT CONTROL : System Descrip-
tion"
CAN communication
EC-38, "CAN COMMUNICATION : System Description"
Cooling fan control EC-38, "COOLING FAN CONTROL : System Description"
Evaporative emission systemEC-40, "EVAPORATIVE EMISSION SYSTEM : System Descrip-
tion"
Intake valve timing control
EC-41, "INTAKE VALVE TIMING CONTROL : System Description"
Exhaust valve timing control EC-42, "EXHAUST VALVE TIMING CO
NTROL : System Descrip-
tion"
Engine protection control at low engine oil pressure EC-43, "ENGINE PROTECTION CONTROL AT LOW ENGINE
OIL PRESSURE : System Description"
Fuel filler cap warning systemEC-44, "FUEL FILLER CAP WARNING SYSTEM : System De-
scription"
Automatic speed control device (ASCD)
EC-45, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Sys-
tem Description"
Active grille shutter systemEXT-11, "ACTIVE GRILLE SHUTTER SYSTEM : System Descrip-
tion"
Revision: August 2015
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EC-44
< SYSTEM DESCRIPTION >[HR16DE]
SYSTEM
*: When detecting a normal engine oil pressure, ECM turns OFF the oil pressure warning lamp.
FUEL FILLER CAP WARNING SYSTEM
FUEL FILLER CAP WARNING
SYSTEM : System DiagramINFOID:0000000012431326
FUEL FILLER CAP WARNING SYS TEM : System DescriptionINFOID:0000000012431327
INPUT/OUTPUT SIGNAL CHART
Input
*: This signal is sent to the ECM via the CAN communication line.
Output
*: This signal is sent to the combination meter via the CAN communication line.
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and
malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination
meter.
ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled
state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter
via CAN communication.
When receiving the signal, the combination meter turns ON the fuel filler cap warning display.
CAUTION:
Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
Decrease in engine
oil pressure Engine speed Combination meter
Oil pressure warning lamp
Detection Less than 1,000 rpm
ON*
1,000 rpm or more ON
Unit/Sensor Input signal to ECM ECM function
EVAP control system pressure sensor Pressure in purge line
Fuel filler cap warning control
Combination meter Fuel level
Fuel filler cap warning reset signal
*
JSBIA0797GB
Unit
Output signal Actuator
ECM Fuel filler cap warning display signal
*Combination meter
Revision: August 2015 2016 Versa Note
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