2006 NISSAN VERSA Workshop Service Repair Manual

technical specifications towing spark plugs replace brake rotor hood open ECO mode

Page 1185 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual EC-16Revision: June 2006
PRECAUTIONS
2007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
UBS00QB3
The Supplemental Rest

EC-16Revision: June 2006
PRECAUTIONS
2007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
UBS00QB3
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 severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WAR NIN G:
To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverUBS00RCH
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and A/T, CVTUBS00QB4
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 battery ground cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MIL to light up.
Be sure to connect and lock the connectors securely 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-
locking type harness connector. For description and how to disconnect, refer to PG-68, "
HAR-
NESS CONNECTOR" .
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 light up due to the short circuit.
Be sure to connect rubber tubes properly after 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 information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PIIB3706J

Page 1186 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual PRECAUTIONS
EC-17
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
PrecautionUBS00QB5
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is

PRECAUTIONS
EC-17
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
PrecautionUBS00QB5
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.
Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
Do not disassemble ECM.
If battery cable is disconnected, the memory will return to
the initial ECM values.
The ECM will now start to self-control at its initial values.
Engine operation can vary slightly when the cable is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.
If the battery is disconnected, the following emission-
related diagnostic information will be lost within 24 hours.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–Freeze frame data
–1st trip freeze frame data
–System readiness test (SRT) codes
–Test values
When connecting ECM harness connector, fasten (B) it
securely with a lever (1) as far as it will go as shown in the
figure.
–ECM (2)
–Loosen (A)
When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.
Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.
Keep engine control system parts and harness dry.
SEF 2 89 H
PBIA9222J
PBIB2947E
PBIB0090E

Page 1187 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual EC-18Revision: June 2006
PRECAUTIONS
2007 Versa
Before replacing ECM, perform “ECM Terminals and Refer-
ence Value” inspection and make sure ECM functions prop-
erly. Refer to EC-105, "
ECM Termi

Page 1188 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual PRECAUTIONS
EC-19
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
Do not operate fuel pump when there is no fuel in lines.
Tighten fuel hose clamps to the specified torque.
–Fuel level sen

Page 1189 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual EC-20Revision: June 2006
PREPARATION
2007 Versa
PREPARATIONPFP:00002
Special Service ToolsUBS00PJP
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here

Page 1190 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual PREPARATION
EC-21
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
Commercial Service ToolsUBS00PJQ
Tool number
(Kent-Moore No.)
Tool nameDescription
Leak detector
i.e.: (J-41416)Locating the

Page 1191 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual EC-22Revision: June 2006
ENGINE CONTROL SYSTEM
2007 Versa
ENGINE CONTROL SYSTEMPFP:23710
System DiagramUBS00PJR
PBIB3331E

Page 1192 of 2896

NISSAN VERSA 2006 Workshop Service Repair Manual ENGINE CONTROL SYSTEM
EC-23
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
Multiport Fuel Injection (MFI) SystemUBS00PJS
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the e

ENGINE CONTROL SYSTEM
EC-23
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
Multiport Fuel Injection (MFI) SystemUBS00PJS
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.

During warm-up
When starting the engine
During acceleration
Hot-engine operation
When selector lever is changed from N to D (A/T and CVT models)
High-load, high-speed operation

During deceleration
During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Battery
Battery voltage*
3
Knock sensor Engine knocking condition
EPS control unit
Power steering operation*
2
Heated oxygen sensor 2*1Density of oxygen in exhaust gas
Air conditioner switch
Air conditioner operation*
2
Wheel sensor
Vehicle speed*2

Load next 8 pages

Page: < prev 1-10 ... 1153-1160 1161-1168 1169-1176 1177-1184 1185-1192 1193-1200 1201-1208 1209-1216 1217-1224 ... 2896 next >

navigation update remote control dead battery fuel tank capacity manual transmission fuel pump