Qashqai J11. Starting system - part 2

STARTING SYSTEM

STR-17

< WIRING DIAGRAM >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

JRBWD1455GB

STR-18

< WIRING DIAGRAM >

STARTING SYSTEM

JRBWD1456GB

DIAGNOSIS AND REPAIR WORK FLOW

STR-19

< BASIC INSPECTION >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000010430894

DETAILED FLOW

NOTE:
If any malfunction is found, immediately disconnect the battery cable from the negative terminal.

CAUTION:

For models with stop/start system, erase the starter operation counter when the starter motor connec-
tor is disconnected. Refer to 

ECH-120, "Work Procedure"

 (HR engine), 

ECK-146, "Work Procedure"

(K9K engine), 

EC9-155, "Work Procedure"

 (R9M engine) or 

ECM-203, "Work Procedure"

 (MR16DDT

engine).

1.

CHECK ENGINE TYPE

Check the vehicle information.

>> GO TO 2.

2.

CHECK ENGINE START

Crank the engine and check that the engine starts. 

Does the engine start?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

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-1

>> Type 1: Replace starter motor.

NO-2

>> Type 2: Replace magnetic switch.

4.

CHECK THE ENGINE SPEED WITH CRANKING

Check that the engine runs at cranking. 
Does engine turn by cranking?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

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 

PG-147,

"Work Flow WITHOUT STOP/START SYSTEM"

.

6.

CHECK STARTER MOTOR ACTIVATION

Check that the starter motor runs at cranking. 
Does starter motor turn?

Type

Engine

1

HR engine

K9K engine

R9M engine

MR16DDT engine 

2

MR20DD engine

STR-20

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

YES-1 >> Type 1: Replace starter motor.
YES-2 >> Type 2: GO TO 7.
NO

>> GO TO 8.

7.

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. Refer to 

STR-29, "MR20DD : Inspection"

.

NO

>> Check reduction gear, armature and gear shaft.

8.

CHECK POWER SUPPLY CIRCUIT

Check the following conditions. 
• Fuse and fusible link
• Charge condition, corrosion and connection condition of the battery. Refer to 

PG-147, "Work Flow WITH-

OUT STOP/START SYSTEM"

.

Are these inspection results normal?

YES

>> GO TO 9.

NO

>> Repair as needed.

9.

CHECK STARTING SYSTEM WIRING

Check the following.
• “B” terminal circuit. Refer to 

STR-21, "Diagnosis Procedure"

.

• “S” terminal circuit. Refer to 

STR-23, "Diagnosis Procedure"

.

Are these inspection results normal?

YES-1 >> Type 1: Replace starter motor.
YES-2 >> Type 2: GO TO 10.
NO

>> Repair as needed.

10.

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 11.

NO

>> Replace magnetic switch.

11.

PINION AND RING GEAR ENGAGEMENT CHECK

Check condition of pinion and ring gear mesh.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 12.

12.

CHECK STARTER MOTOR UNIT

Check the following.
• Adjust pinion movement. Refer to 

STR-29, "MR20DD : Inspection"

.

• Check pinion moving mechanism.
• Check ring gear.
Are these inspection results normal?

YES

>> INSPECTION END

NO

>> Repair or replace, if necessary.

13.

CHECK STARTER MOTOR UNIT

Check that the starter motor runs when connecting the positive terminal (12 V) to starter motor terminal M and
the negative terminal (ground) to starter motor body. 
Does the starter motor run?

YES

>> Replace magnetic switch.

NO

>> Repair starter motor.

B TERMINAL CIRCUIT

STR-21

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010430895

CAUTION:

• Perform diagnosis under the condition that engine cannot start by the following procedure.
- Remove fuel pump fuse.
- Crank or start the engine (where possible) until the fuel pressure is released.
• For models with stop/start system, erase the starter operation counter when the starter motor con-

nector is disconnected. Refer to 

ECH-120, "Work Procedure"

 (HR engine), 

ECK-146, "Work Proce-

dure"

 (K9K engine), 

EC9-155, "Work Procedure"

 (R9M engine) or 

ECM-203, "Work Procedure"

(MR16DDT engine).

1.

CHECK “B” TERMINAL CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Check that starter motor “B” terminal connection is clean and tight.

3.

Check voltage between starter motor “B” terminal and ground.

Except for MR engine

For MR engine

Is the inspection result normal?

YES

>> GO TO 2.

NO-1

>> For models with stop/start system: GO TO 4.

NO-2

>> For models without stop/start system: Check harness between battery and starter motor for open

circuit.

2.

CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)

1.

Shift selector lever to “P” or “N” position. (CVT models)
Keep depressing clutch pedal fully. (M/T models)

2.

Check voltage between battery positive terminal and starter motor “B” terminal.

Except for MR engine

For MR engine

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between the battery and the starter motor for poor continuity.

(+)

(–)

Voltage (Approx.)

Starter motor

Connector

Terminal

F105

2 Ground

Battery 

voltage

(+)

(–)

Voltage (Approx.)

Starter motor

Connector

Terminal

E70

2 Ground

Battery 

voltage

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

Battery positive terminal

F105

2 

When the ignition switch 

is in START position

Less than

 0.5 V

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

Battery positive terminal

E70

2 

When the ignition switch 

is in START position

Less than

 0.5 V

STR-22

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

3.

CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)

1.

Shift selector lever to “P” or “N” position. (CVT models)
Keep depressing clutch pedal fully. (M/T models)

2.

Check voltage between starter motor case and battery negative terminal.

Is the inspection result normal?

YES

>> “B” terminal circuit is OK. Further inspection is necessary. Refer to 

STR-19, "Work Flow"

.

NO

>> Check the starter motor case and ground for poor continuity.

4.

CHECK “B” TERMINAL CIRCUIT 2

1.

Disconnect starter connector and engine restart bypass relay connector.

2.

Check continuity between starter motor harness connector and engine restart bypass relay harness con-
nector.

Except for MR16DDT engine

For MR16DDT engine

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK ENGINE RESTART BYPASS RELAY CIRCUIT

Check voltage between engine restart bypass relay harness connector and ground.

Except for MR16DDT engine

For MR16DDT engine

Is the inspection result normal?

YES

>> Replace engine restart bypass relay. Refer to 

ECH-322, "Removal and Installation"

 (HR engine),

ECK-402, "Removal and Installation"

 (K9K engine), 

EC9-413, "Removal and Installation"

 (R9M

engine) or 

ECM-619, "Removal and Installation"

 (MR16DDT engine).

NO

>> Repair or replace harness.

Terminals

Condition

Voltage (Approx.)

(+)

(–)

Starter motor case

Battery negative terminal

When the ignition switch is in 

START position

Less than 0.2 V

Starter motor

Engine restart bypass relay

Continuity

Connector

Terminal

Connector

Terminal

F105

2 F147

2

Existed

Starter motor

Engine restart bypass relay

Continuity

Connector

Terminal

Connector

Terminal

E70

2 E72

2

Existed

(+)

(–)

Voltage (Approx.)

Engine restart bypass relay

Connector

Terminal

F148

3

Ground

Battery voltage

(+)

(–)

Voltage (Approx.)

Engine restart bypass relay

Connector

Terminal

E71

3

Ground

Battery voltage

S TERMINAL CIRCUIT

STR-23

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

S TERMINAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010430896

CAUTION:

• Perform diagnosis under the condition that engine cannot start by the following procedure.
- Remove fuel pump fuse.
- Crank or start the engine (where possible) until the fuel pressure is released.
• For models with stop/start system, erase the starter operation counter when the starter motor con-

nector is disconnected. Refer to 

ECH-120, "Work Procedure"

 (HR engine), 

ECK-146, "Work Proce-

dure"

 (K9K engine), 

EC9-155, "Work Procedure"

 (R9M engine) or 

ECM-203, "Work Procedure"

(MR16DDT engine).

1.

CHECK “S” TERMINAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect starter motor connector.

3.

Shift selector lever to “P” or “N” position. (CVT models)
Keep depressing clutch pedal fully. (M/T models)

4.

Check voltage between starter motor harness connector and ground.

Except for MR engine

For MR engine

Is the inspection result normal?

YES

>> “S” terminal circuit is OK. Further inspection is necessary. Refer to 

STR-19, "Work Flow"

.

NO

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect IPDM E/R connector.

2.

Check continuity between starter motor harness connector and IPDM E/R harness connector.

Except for MR engine

For MR engine

Is the inspection result normal?

YES

>> Further inspection is necessary. Refer to 

SEC-78, "Work Flow"

 (With Intelligent Key System) or

SEC-237, "Work Flow"

 (Without Intelligent Key System).

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

F104

1 Ground

When the ignition switch is in 

START position

Battery voltage

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

F106

1 Ground

When the ignition switch is in 

START position

Battery voltage

Starter motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F104

1

F88

65

Existed

Starter motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F106

1

F88

65

Existed

STR-24

< SYMPTOM DIAGNOSIS >

STARTING SYSTEM

SYMPTOM DIAGNOSIS

STARTING SYSTEM

Symptom Table

INFOID:0000000010430897

Symptom

Reference

No normal cranking

Refer to 

STR-19, "Work Flow"

.

Starter motor does not rotate

STARTER MOTOR

STR-25

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

REMOVAL AND INSTALLATION

STARTER MOTOR

HRA2DDT

HRA2DDT : Exploded View

INFOID:0000000010324198

HRA2DDT : Removal and Installation

INFOID:0000000010324199

REMOVAL

1.

Disconnect the battery cable from the negative terminal. Refer to 

PG-154, "Exploded View"

.

2.

Drain engine coolant from radiator. Refer to 

CO-12, "Draining"

. 

CAUTION:

Perform this step when engine is cold.

3.

Remove intake manifold. Refer to 

EM-26, "Removal and Installation"

.

4.

Disconnect water hose from water inlet.

5.

Remove “B” terminal nut and “B” terminal harness.

6.

Remove “S” terminal nut and “S” terminal harness.

7.

Remove starter motor mounting bolts.

8.

Remove starter motor forward from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Be careful to tighten “B” terminal nut to the specified torque.
• Erase the starter operation counter when the starter motor for models with STOP/START SYSTEM is

removed or replaced. Refer to 

ECH-120, "Work Procedure"

.

• Replace the engine restart relay and the fuel pump relay when the starter motor models with STOP/

START SYSTEM is replaced.

MR16DDT

1.

Starter motor

2.

“B” terminal harness

3.

“S” terminal harness

4.

Starter motor mounting bolt

: Vehicle front

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

JMBIA4573GB

STR-26

< REMOVAL AND INSTALLATION >

STARTER MOTOR

MR16DDT : Exploded View

INFOID:0000000011732944

REMOVAL

MR16DDT : Removal and Installation

INFOID:0000000011732945

REMOVAL

1.

Disconnect the battery cable from the negative terminal. Refer to 

PG-155, "Removal and Installation"

.

2.

Remove intake monifold. Refer to 

EM-151, "Removal and Installation"

.

3.

Open “B” terminal cover, in the direction indicated by an arrow
as shown in the figure.

4.

Remove “B” terminal nut and “B” terminal harness.

5.

Remove “S” terminal nut and “S” terminal harness.

6.

Disconnect harness connector from oil level sensor and oil pressure contorl solenoid valve. Refer to 

EM-

171, "Exploded View"

.

1.

“S” terminal harness

2.

“B” terminal harness

3.

Starter motor

4.

Cylinder block

  : Vehicle front

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

PKIC8095E

JMBIA3020ZZ

STARTER MOTOR

STR-27

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

7.

Disconnect harness connector (1) from crankshaft position sen-
sor.

8.

Remove harness fixing clip (A) from oil pan (upper), and then
move harness (2) to a location where they do not inhibit work.

9.

Remove starter motor mounting bolts.

10. Remove starter motor from the vehicle.

CAUTION:

For models with STOP/START SYSTEM, never erase the starter operation counter except when
replacing starter motor.

INSTALLATION

Note the following items, and install in the reverse order of removal.

CAUTION:

• Be careful to tighten “B” terminal nut to the specified torque.
• Erase the starter operation counter when the starter motor for models with STOP/START SYSTEM is

replaced. Refer to 

ECM-203, "Work Procedure"

.

• Replace the engine restart bypass relay and the fuel pump relay when the starter motor models with

STOP/START SYSTEM is replaced.

- Engine restart bypass relay: Refer to 

ECM-619, "Removal and Installation"

.

- Fuel pump relay (IPDM E/R): Refer to 

PCS-68, "Removal and Installation"

.

MR20DD

MR20DD : Exploded View

INFOID:0000000010376819

REMOVAL

JMBIA3021ZZ

1.

“S” terminal connector

2.

Starter motor

3.

Cylinder block

: Vehicle front

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

JMBIA4561GB

STR-28

< REMOVAL AND INSTALLATION >

STARTER MOTOR

DISASSEMBLY

MR20DD : Removal and Installation

INFOID:0000000010376820

REMOVAL

1.

Disconnect the battery cable from the negative terminal. Refer to 

PG-154, "Exploded View"

.

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 mounting bolts.

6.

Remove starter motor upward from the vehicle.

CAUTION:

Never damage oil pressure switch when removing starter motor.

INSTALLATION

Note the following item, and then install in the reverse order of removal.

CAUTION:

Be careful to tighten “B” terminal nut to the specified torque.

1.

Magnetic switch assembly

2.

Dust cover kit

3.

Shift lever set

4.

Center bracket (A)

5.

Yoke assembly

6.

Armature assembly

7.

Brush holder assembly

8.

Thrust washer

9.

Rear cover assembly

10. Internal gear

11.

Planetary gear

12. Pinion shaft

13. Packing

14. Thrust washer

15. Center bracket (P)

16. E-ring

17. Pinion assembly

18. Pinion stopper

19. Pinion stopper clip

20. Gear case assembly

 : High-temperature grease point

: N·m (kg-m, in-lb)

JMBIA4574GB

STARTER MOTOR

STR-29

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

MR20DD : Disassembly and Assembly

INFOID:0000000010376821

ASSEMBLY

Apply high-temperature grease to lubricate the bearing, gears and frictional surface when assembling
the starter.
Carefully observe the following instructions.

Pinion Protrusion Length Adjustment

CLEARANCE

• With pinion driven out by magnetic switch, push pinion back to

remove slack and measure clearance “L” between the front edge
of the pinion and the pinion stopper.

• Adjust with the adjusting plate if the measurement value is not in

the specified area. 

MR20DD : Inspection

INFOID:0000000010376822

INSPECTION

Magnetic Switch Check

• Before starting to check, disconnect the battery cable from the negative terminal.
• Disconnect “M” terminal of starter motor.

1.

Continuity test [between “S” terminal (A) and switch body]

• Replace magnetic switch if continuity does not exist. 

Clearance “L”

: Refer to SDS 

STR-36, 

"Starter Motor"

.

SKIB0229E

PKID0786E

B

: “B” terminal

C

: “M” terminal

SKIB9002E

STR-30

< REMOVAL AND INSTALLATION >

STARTER MOTOR

2.

Continuity test [between “S” terminal (A) and “M” terminal (C)]

• Replace magnetic switch if continuity does not exist. 

Pinion/Clutch Check

1.

Inspect pinion teeth.
• Replace pinion if teeth are worn or damaged. (Also check con-

dition of ring gear teeth.)

2.

Inspect reduction gear teeth (If equipped).
• Replace reduction gear if teeth are worn or damaged. (Also

check condition of armature shaft gear teeth.)

3.

Check to see if pinion locks in one direction and rotates
smoothly in the opposite direction.
• Replace pinion assembly if it is locked or rotated in both direc-

tions or unusual resistance is evident. 

Brush Check

• Check wear of brush.

• Replace brush if the measurement value is less than the specified

value.

Brush Spring Check

• Check brush spring tension with brush spring detached from

brush.

• Replace brush spring if the measurement value is less than the

specified value.

Brush Holder Check

B

: “B” terminal

SKIB9003E

SEL630BA

Minimum length of brush

: Refer to SDS 

STR-36, 

"Starter Motor"

.

SEL014Z

Spring tension (with new 
brush)

: Refer to SDS 

STR-36, 

"Starter Motor"

.

SEL015Z

STARTER MOTOR

STR-31

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

1.

Perform insulation test between brush holder (positive side) and
its base (negative side).
• Replace brush holder assembly if continuity does not exist. 

2.

Check brush to see if it moves smoothly.
• If brush holder is bent, replace it; if sliding surface is dirty,

clean.

Yoke Check

Magnet is secured to yoke by bonding agent. Check magnet to see
that it is secured to yoke and for any cracks. Replace malfunctioning
parts as an assembly.

CAUTION:

Never clamp yoke in a vise or strike it with a hammer.

Armature Check

1.

Continuity test (between two segments side by side)
• Replace armature assembly if continuity does not exist. 

2.

Insulation test (between each commutator bar and shaft)
• Replace armature assembly if continuity exists. 

3.

Check commutator surface.
• Grind with No. 500 - 600 emery paper if it has a rough surface. 

SKIB0460E

SEL305H

SKIB0461E

SEL020Z

STR-32

< REMOVAL AND INSTALLATION >

STARTER MOTOR

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. 

K9K

K9K : Exploded View

INFOID:0000000010324190

Commutator minimum di-
ameter

: Refer to SDS 

STR-36, 

"Starter Motor"

.

SEL021Z

SEL022Z

JMBIA4570GB