NISSAN TIIDA 2007 Service Repair Manual

STR-20
< COMPONENT DIAGNOSIS >[MR18DE]
S CONNECTOR CIRCUIT
S CONNECTOR CIRCUIT
DescriptionINFOID:0000000001728569
Terminal "1" (S) is the power supply for the starter motor magnetic switch. Terminal 1 is supplied with power
when the ignition switch is turned to the START position while the selector lever is in the P or N position.
Diagnosis ProcedureINFOID:0000000001728570
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
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
1. Turn ignition switch OFF.
2. Disconnect starter motor connector F28.
3. Shift transmission into park or neutral.
4. Check voltage between starter motor harness connector F28
terminal 1 and ground with the ignition in START.
Is battery voltage present?
YES >> Magnetic switch circuit is OK. Further inspection necessary. Refer to STR-14, "Work Flow".
NO >> GO TO 2
2.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check the IPDM E/R harness connector E44 and starter motor harness connector F28 for damage, bent
pins and loose connections.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair the terminal and connector.
3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect IPDM E/R connector E44 and starter motor connec-
tor F28.
2. Check continuity between starter motor harness connector F28
(A) terminal 1 and IPDM E/R harness connector E44 (B) termi-
nal 19.
3. Check continuity between starter motor harness connector F28
(A) terminal 1 and ground.
Are the continuity test results as specified?
YES >> Further inspection necessary. Refer to STR-14, "Work Flow".
NO >> Repair the harness.
(+)
(-) Condition Voltage
Connector Terminal
F28 1 GroundWhile cranking the
engineBattery voltage
AWBIA0125GB
AB
Continiuty
Connector Terminal Connector Terminal
F28 1 E44 19 Yes
A
— Continiuty
Connector Terminal
F28 1 Ground No
AWBIA0126GB

STARTING SYSTEM
STR-21
< COMPONENT DIAGNOSIS >[MR18DE]
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STARTING SYSTEM
Wiring DiagramINFOID:0000000001728571
AWBWA0019GB

STR-22
< SYMPTOM DIAGNOSIS >[MR18DE]
STARTING SYSTEM
SYMPTOM DIAGNOSIS
STARTING SYSTEM
Symptom TableINFOID:0000000001728572
Symptom Reference
No normal cranking
Refer to STR-14, "
Work Flow".
Starter motor does not rotate

PRECAUTIONS
STR-23
< PRECAUTION >[MR18DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001689455
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. 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 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-
ness connectors.

STR-24
< ON-VEHICLE REPAIR >[MR18DE]
STARTER MOTOR
ON-VEHICLE REPAIR
STARTER MOTOR
Removal and InstallationINFOID:0000000001689442
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Disconnect the oil pressure switch connector.
3. Remove “B” terminal nut and “B” terminal harness.
4. Remove “S” terminal nut and “S” terminal harness.
5. Remove starter motor bolts.
6. Remove starter motor upward from the vehicle.
CAUTION:
Never damage oil pressure switch when removing starter motor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
1. "S" terminal harness 2. "B" terminal harness 3. Starter motor
4. Cylinder block Engine front
WKIA5611E

DIAGNOSIS AND REPAIR WORKFLOW
STR-25
< BASIC INSPECTION >[K9K]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001728601
OVERALL SEQUENCE
DETAILED FLOW
JSBIA0008GB

STR-26
< BASIC INSPECTION >[K9K]
DIAGNOSIS AND REPAIR WORKFLOW
NOTE:
If any malfunction is found, immediately disconnect the battery cable from the negative terminal.
1.CHECK ENGINE START
Crank the engine and check that the engine starts.
Does the engine start?
YES >> GO TO 2
NO >> GO TO 3
2.CHECK THAT THE STARTER MOTOR STOPS
Check that the starter motor stops after starting the engine.
Does the starter motor stop?
YES >> INSPECTION END.
NO >> Replace starter motor.
3.CHECK THE ENGINE SPEED WITH CRANKING
Check that the engine runs at cranking.
Does engine turn by cranking?
YES >> GO TO 4
NO >> GO TO 5
4.CHECK THE ENGINE SPEED WITH CRANKING
Check that the engine speed is not low at cranking.
Does engine turn normally?
YES >> Check ignition/fuel system.
NO >> Check charge condition, corrosion and connection condition of the battery. Refer to STR-25,
"Work Flow".
5.CHECK STARTER MOTOR ACTIVATION
Check that the starter motor runs at cranking.
Does starter motor turn?
YES >> GO TO 6
NO >> GO TO 7
6.ENGINE ROTATION STATUS
Check that the engine can be rotated by hand.
Does engine turn freely by hand?
YES >> Replace starter motor.
NO >> Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to EM, TM or CL
sections.
7.CHECK POWER SUPPLY CIRCUIT
Check the following conditions.
 Fuse and fusible link
 Charge condition, corrosion and connection condition of the battery. Refer to STR-25, "
Work Flow".
Are these inspection results normal?
YES >> GO TO 8
NO >> Repair as needed.
8.CHECK STARTING SYSTEM WIRING
Check the following.
 “B” terminal circuit. Refer to STR-30, "
Description"
 “S” terminal circuit. Refer to STR-31, "Description"
Are these inspection results normal?
YES >> GO TO 9
NO >> Repair as needed.

DIAGNOSIS AND REPAIR WORKFLOW
STR-27
< BASIC INSPECTION >[K9K]
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9.CHECK MAGNETIC SWITCH OPERATION SOUND
Check that a magnetic switch operation sound can be heard when the ignition switch is set at the starting posi-
tion.
Does magnetic switch operation sound occur?
YES >> GO TO 10
NO >> Replace starter motor.
10.PINION AND RING GEAR ENGAGEMENT CHECK
Check condition of pinion and ring gear mesh.
Is the inspection result normal?
YES >> Replace starter motor.
NO >> GO TO 11
11 .CHECK STARTER MOTOR UNIT
Check the following.
 Check pinion moving mechanism.
 Check ring gear.
Are these inspection results normal?
YES >> INSPECTION END.
NO >> Repair or replace, if necessary.

STR-28
< FUNCTION DIAGNOSIS >[K9K]
STARTING SYSTEM
FUNCTION DIAGNOSIS
STARTING SYSTEM
System DiagramINFOID:0000000001728574
System DescriptionINFOID:0000000001728575
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.
Component Parts LocationINFOID:0000000001728576
ALBIA0473GB
1. IPDM E/R E44, E45, E46 2. BCM M18 (view with glove box re-
moved)
ALBIA0475GB

STARTING SYSTEM
STR-29
< FUNCTION DIAGNOSIS >[K9K]
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Component DescriptionINFOID:0000000001728577
Component part Description
BCMBCM sends a starter request signal to the CPU of the IPDM E/R
over the CAN communication lines.
IPDM E/RCPU inside IPDM E/R operates the starter relay at the request of
the BCM over the CAN communication lines.
Starter motorThe starter motor plunger closes and the motor is supplied with
battery power, which in turn cranks the engine, when the “S” ter-
minal is supplied with electric power.