Nissan X-Trail 32. Manual - part 2005

STR-20

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

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-28, "MR20DD : Inspection"

 (MR engine) or 

STR-35, "QR25DE

: Inspection"

 (QR engine)

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-120, "R9M : Work Flow"

(R9M engine) or 

PG-124, "EXCEPT FOR R9M : Work Procedure"

 (Except for R9M engine).

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-28, "MR20DD : Inspection"

 (MR engine) or 

STR-35, "QR25DE :

Inspection"

 (QR engine).

• 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

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STR

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DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010957648

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 

EC-960, "Work Procedure"

.

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.

For QR engine

For MR engine

For R9M 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.

For QR engine

(+)

(–)

Voltage (Approx.)

Starter motor

Connector

Terminal

F11

1

Ground

Battery voltage

(+)

(–)

Voltage (Approx.)

Starter motor

Connector

Terminal

E64

1

Ground

Battery voltage

(+)

(–)

Voltage (Approx.)

Starter motor

Connector

Terminal

F129

1

Ground

Battery voltage

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

Battery positive terminal

F11

1

When the ignition switch 

is in START position

Less than

 0.5 V

STR-22

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

For MR engine

For R9M engine

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

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.

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.

Is the inspection result normal?

YES

>> Replace engine restart bypass relay. Refer to 

EC-1230, "Removal and Installation"

.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

Battery positive terminal

E64

1

When the ignition switch 

is in START position

Less than

 0.5 V

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

Battery positive terminal

F129

1

When the ignition switch 

is in START position

Less than

 0.5 V

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

F129

1

F138

3

Existed

(+)

(–)

Voltage (Approx.)

Engine restart bypass relay

Connector

Terminal

F137

2

Ground

Battery voltage

S TERMINAL CIRCUIT

STR-23

< DTC/CIRCUIT DIAGNOSIS >

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S TERMINAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010957649

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 

EC-960, "Work Procedure"

.

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.

For QR engine

For MR engine

For R9M 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.

For QR engine

For MR engine

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

F10

2

Ground

When the ignition switch is in 

START position

Battery voltage

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

F47

2

Ground

When the ignition switch is in 

START position

Battery voltage

(+)

(–)

Condition

Voltage (Approx.)

Starter motor

Connector

Terminal

F130

2

Ground

When the ignition switch is in 

START position

Battery voltage

Starter motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F10

2

F73

81

Existed

Starter motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F47

2

F73

81

Existed