STR-1
ENGINE
C
D
E
F
G
H
I
J
K
L
M
SECTION STR
A
STR
N
O
P
CONTENTS
STARTING SYSTEM
PRECAUTION 2
PRECAUTIONS 2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER"
2
PREPARATION 3
PREPARATION 3
Special Service Tool 3
Commercial Service Tools 3

24
SERVICE DATA AND SPECIFICATIONS
(SDS)
24
Starter Motor 24
Revision: July 2011 2012 Versa Sedan
STR-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007714250
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 SR and SB section of this Service Man-
ual.
WARNING:
• 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR 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 har-

PREPARATION
Special Service Tool INFOID:0000000007714251
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools INFOID:0000000007221944
Tool number
(Kent Moore No.)
Tool name
Description
—
(—) Model GR-8 1200 NI
Multitasking battery and electrical di-
agnostic station
Tests batteries, starting and charging systems
and charges batteries.
For operating instructions, refer to diagnostic
station instruction manual.
AWIIA1239ZZ
Tool name Description
Power tool Loosening bolts, nuts and screws
PIIB1407E
Revision: July 2011 2012 Versa Sedan
STR-4
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location INFOID:0000000007221946
:Vehicle front
1. Starter motor 2. Transmission range switch (CVT
Models)

side the IPDM E/R when the selector lever is shifted to the P or N
position.
IPDM E/R
CPU inside IPDM E/R operates the starter relay when the ignition
switch is in the start position.
Clutch interlock switch (M/T Models)
Clutch interlock switch supplies power to the coil side of the starter
relay when the clutch pedal is depressed to crank the engine.
Revision: July 2011 2012 Versa Sedan
STR-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System Diagram INFOID:0000000007221949
System Description INFOID:0000000007221950
The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The
starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates.
AWBIA1125GB
Revision: July 2011 2012 Versa Sedan
STARTING SYSTEM
STR-7
< WIRING DIAGRAM >
C
D
E
F
G
H
I
J

L
M
A
STR
N
P
O
ABBIA1041GB
Revision: July 2011 2012 Versa Sedan
STR-10
< WIRING DIAGRAM >
STARTING SYSTEM
ABBIA1042GB
Revision: July 2011 2012 Versa Sedan
STARTING SYSTEM
STR-11
< WIRING DIAGRAM >
C
D
E
F
G
H
I
J
K
L
M
A
STR

STR
N
P
O
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter motor and generator test segments must be
done as a set from start to finish.
1.DIAGNOSIS WITH MULTITASKING BATTERY DIAGNOSTIC STATION
Perform the starting system test with multitasking battery diagnostic station. For details and operating instruc-
tions, refer to diagnostic station instruction manual.
Test result
CRANKING NORMAL>>GO TO 2
LOW VOLTAGE>>GO TO 5
CHARGE BATTERY>>Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12
hours.) Perform battery test again. Refer to diagnostic station instruction manual.
REPLACE BATTERY>>Before replacing battery, clean the battery cable clamps and battery posts. Perform
battery test again. Refer to diagnostic station instruction manual. If second test result is
“REPLACE BATTERY”, then do so. Perform battery test again to confirm repair.
2.CRANKING CHECK
Check that the starter motor operates properly.
Does the engine crank normally?
YES >> GO TO 3
NO >> GO TO 4
3.ENGINE START CHECK
Check that the engine starts.
Does the engine start?
YES >> Starter motor is OK. Inspection end.
NO >> Perform further diagnosis of engine mechanical or engine control system. Refer to EM and EC
sections. Once resolved, perform battery test again.
4.STARTER MOTOR ACTIVATION

8.S CONNECTOR CIRCUIT INSPECTION
Check S connector circuit. Refer to STR-16, "
Diagnosis Procedure".
Is S connector circuit normal?
YES >> GO TO 9
NO >> Repair as needed.
9.ENGINE ROTATION STATUS
Check that the engine can be rotated by hand.
Does the engine turn freely by hand?
YES >> Replace starter motor.
NO >> Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to EM or TM
sections. Once resolved, perform battery test again. Refer to diagnostic station instruction man-
ual.
Revision: July 2011 2012 Versa Sedan
B TERMINAL CIRCUIT
STR-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
A
STR

Is the voltage drop less than 0.2V?
YES >> Terminal B circuit is OK. Further inspection necessary. Refer to STR-12, "Work Flow".
NO >> Check the starter motor case to engine mounting for high resistance.
(+)
(-) Voltage
Connector Terminal
F27 B Ground Battery voltage
(+)
(-)
Condition Voltage
Connector Terminal
Battery (+) terminal F27 B While cranking the engine Less than 0.2V
(+) (-) Condition Voltage
Starter motor case Battery (-) terminal While cranking the engine Less than 0.2V
Revision: July 2011 2012 Versa Sedan
STR-16
< DTC/CIRCUIT DIAGNOSIS >
S CONNECTOR CIRCUIT
S CONNECTOR CIRCUIT
Description INFOID:0000000007629507
Terminal S is the power supply for the starter motor magnetic switch. Terminal S is supplied with power when
the ignition switch is turned to the START position while the selector lever is in the P (Park) or N (Neutral) posi-
tion, (CVT models) or when the clutch pedal is fully depressed (M/T models).
Diagnosis Procedure INFOID:0000000007629508
Regarding Wiring Diagram information, refer to STR-7, "Wiring Diagram".
CAUTION:
Before testing, perform the following procedure to ensure the engine cannot start.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1.CHECK STARTER MOTOR MAGNETIC SWITCH CIRCUIT

F28 S Ground No
Revision: July 2011 2012 Versa Sedan
STARTING SYSTEM
STR-17
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
SYMPTOM DIAGNOSIS
STARTING SYSTEM
Symptom Table INFOID:0000000007221958
Symptom Reference
No normal cranking
Refer to STR-12, "
Work Flow".
Starter motor does not rotate
Revision: July 2011 2012 Versa Sedan

P
O
Removal and Installation INFOID:0000000007221960
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Remove air duct (inlet). Refer to EM-25, "
Removal and Installation".
3. Remove “S” terminal nut and “S” terminal harness.
4. Remove “B” terminal nut and “B” terminal harness.
5. Remove oil filter. Refer to LU-11, "
Removal and Installation".
6. Remove starter motor bolts.
7. Remove starter motor from underneath the vehicle.
CAUTION:
Be careful to not damage surrounding parts when removing
starter motor from the vehicle.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Be careful to tighten starter bolts, "S" terminal nut and “B” terminal nut to the specified torque.
• Install oil filter. Refer to LU-11, "
Removal and Installation".
• Clean battery terminals and battery cables to remove corrosion prior to connecting.
• Ensure the battery cables are tightened to the specified torque.
NOTE:
Reset electronic systems as necessary.
Inspection and Adjustment INFOID:0000000007221961
INSPECTION
Magnetic Switch Check
1. Disconnect the battery cable from the negative terminal.

• Check brushes for excessive wear.
• Replace brush holder assembly if the measurement value is less
than the specified value.
Brush Spring Check
B : “B” terminal
C : “M” terminal
SKIB9002E
B : “B” terminal
SKIB9003E
SEL630BA
Minimum length of brush : Refer to STR-24.
SEL014Z
Revision: July 2011 2012 Versa Sedan
STARTER MOTOR
STR-21
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N

SKIB0461E
Revision: July 2011 2012 Versa Sedan
STR-22
< REMOVAL AND INSTALLATION >
STARTER MOTOR
3. Check commutator surface.
• Clean commutator with No. 500 - 600 emery paper.
4. Check diameter of commutator.
• Replace armature assembly if the measurement value is less
than the specified value.
5. Check depth of insulating mold from commutator surface.
• Undercut to 0.5 to 0.8 mm (0.020 to 0.031 in) if the depth is 0.2
mm (0.008 in) or less.
PINION PROTRUSION LENGTH ADJUSTMENT
1. Apply battery power to the magnetic switch.
SEL020Z
Commutator minimum diameter : Refer to STR-24.
SEL021Z
SEL022Z
Revision: July 2011 2012 Versa Sedan
STARTER MOTOR
STR-23
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I

No-load
Terminal voltage 11V
Current Less than 95A
Revolution More than 3,000 rpm
Minimum diameter of commutator [mm (in)] 28.0 (1.102)
Minimum length of brush [mm (in)] 10.5 (0.413)
Brush spring tension [N (kg, lb)] 16.2 (1.65, 3.6)
Clearance between bearing metal and armature shaft [mm (in)] Less than 0.2 (0.008)
Clearance “L” between pinion front edge and pinion stopper [mm (in)] 0.3 - 2.5 (0.012 - 0.095)
Revision: July 2011 2012 Versa Sedan