engine NISSAN TIIDA 2007 Service Repair Manual

STARTING SYSTEM
STR-7
< FUNCTION DIAGNOSIS >[HR16DE]
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Component DescriptionINFOID:0000000001712881
Component part Description
PNP switchPNP switch supplies power to the starter relay when the selector
lever is shifted to the P or N position.
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.

STR-8
< COMPONENT DIAGNOSIS >[HR16DE]
B TERMINAL CIRCUIT
COMPONENT DIAGNOSIS
B TERMINAL CIRCUIT
DescriptionINFOID:0000000001712882
Terminal "2" (B) is constantly supplied with battery power.
Diagnosis ProcedureINFOID:0000000001712883
CAUTION:
Perform diagnosis under the condition that the 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 depleted.
1.CHECK TERMINAL 2 POWER SUPPLY VOLTAGE
1. Turn ignition switch OFF.
2. Make sure that starter motor connector F27 terminal 2 connection is clean and tight.
3. Check voltage between starter motor connector F27 terminal 2
and ground.
Is there battery voltage present?
YES >> GO TO 2
NO >> Check harness between battery and starter motor for
open circuit.
2.CHECK BATTERY CABLE (VOLTAGE DROP TEST)
1. Shift the transmission into park or neutral.
2. Check voltage between battery positive terminal and starter
motor connector F27 terminal 2 while cranking the engine.
Is the voltage drop less than 0.2V?
YES >> GO TO 3
NO >> Check harness between the battery and the starter
motor for high resistance.
3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
Check voltage between starter motor case and battery negative ter-
minal while cranking the engine.
Is the voltage drop less than 0.2V?
YES >> Terminal 2 circuit is OK. Further inspection necessary.
Refer to STR-3, "
Work Flow".
NO >> Check the starter motor case to engine mounting for
high resistance.
(+)
(-) Condition Voltage
Connector Terminal
F27 2 GroundWhile cranking the
engineBattery voltage
AWBIA0122GB
(+)
(-) Condition Voltage
Connector Terminal
F27 2Battery (+)
terminalWhile cranking the
engineLess than 0.2V
AWBIA0123GB
(+) (-) Condition Voltage
Starter motor
caseBattery (-) terminalWhile cranking the
engineLess than 0.2V
AWBIA0124GB

S CONNECTOR CIRCUIT
STR-9
< COMPONENT DIAGNOSIS >[HR16DE]
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S CONNECTOR CIRCUIT
DescriptionINFOID:0000000001712884
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:0000000001712885
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-3, "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-3, "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

DIAGNOSIS AND REPAIR WORKFLOW
STR-15
< BASIC INSPECTION >[MR18DE]
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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 magnetic switch.
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 XX-XX,
"*****".
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.CHECK STARTER MOTOR UNIT
1. Remove starter motor.
2. Check that the gear shaft of starter motor rotates.
Does gear shaft turn?
YES >>  Check pinion clutch. .
NO >> Check reduction gear, armature and gear shaft.
7.CHECK POWER SUPPLY CIRCUIT
Check the following conditions.
 Fuse and fusible link
 Charge condition, corrosion and connection condition of the battery. Refer to PG-3, "
How to Handle Battery".
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-19, "
Description".
 “S” terminal circuit. Refer to STR-20, "
Description".
Are these inspection results normal?
YES >> GO TO 9
NO >> Repair as needed.

STR-18
< FUNCTION DIAGNOSIS >[MR18DE]
STARTING SYSTEM
Component Description
INFOID:0000000001728566
Component part Description
PNP switchPNP switch supplies power to the starter relay when the selector
lever is shifted to the P or N position.
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.

B TERMINAL CIRCUIT
STR-19
< COMPONENT DIAGNOSIS >[MR18DE]
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COMPONENT DIAGNOSIS
B TERMINAL CIRCUIT
DescriptionINFOID:0000000001728567
Terminal "2" (B) is constantly supplied with battery power.
Diagnosis ProcedureINFOID:0000000001728568
CAUTION:
Perform diagnosis under the condition that the 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 depleted.
1.CHECK TERMINAL 2 POWER SUPPLY VOLTAGE
1. Turn ignition switch OFF.
2. Make sure that starter motor connector F27 terminal 2 connection is clean and tight.
3. Check voltage between starter motor connector F27 terminal 2
and ground.
Is there battery voltage present?
YES >> GO TO 2
NO >> Check harness between battery and starter motor for
open circuit.
2.CHECK BATTERY CABLE (VOLTAGE DROP TEST)
1. Shift the transmission into park or neutral.
2. Check voltage between battery positive terminal and starter
motor connector F27 terminal 2 while cranking the engine.
Is the voltage drop less than 0.2V?
YES >> GO TO 3
NO >> Check harness between the battery and the starter
motor for high resistance.
3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
Check voltage between starter motor case and battery negative ter-
minal while cranking the engine.
Is the voltage drop less than 0.2V?
YES >> Terminal 2 circuit is OK. Further inspection necessary.
Refer to STR-14, "
Work Flow".
NO >> Check the starter motor case to engine mounting for
high resistance.
(+)
(-) Condition Voltage
Connector Terminal
F27 2 GroundWhile cranking the
engineBattery voltage
AWBIA0122GB
(+)
(-) Condition Voltage
Connector Terminal
F27 2Battery (+)
terminalWhile cranking the
engineLess than 0.2V
AWBIA0123GB
(+) (-) Condition Voltage
Starter motor
caseBattery (-) terminalWhile cranking the
engineLess than 0.2V
AWBIA0124GB

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

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

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.

STARTING SYSTEM
STR-29
< FUNCTION DIAGNOSIS >[K9K]
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STR
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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.