Nissan Xterra. Manual - part 617

STR-14

< DTC/CIRCUIT DIAGNOSIS >

B TERMINAL CIRCUIT

DTC/CIRCUIT DIAGNOSIS

B TERMINAL CIRCUIT

Description

INFOID:0000000009485116

Terminal "2" (B) is constantly supplied with battery power.

Diagnosis Procedure

INFOID:0000000009485117

Regarding Wiring Diagram information, refer to 

STR-18, "Wiring Diagram - With Clutch Interlock Cancel Sys-

tem"

 or 

STR-24, "Wiring Diagram - Without Clutch Interlock Cancel System"

.

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 depleted.

1.

CHECK TERMINAL 2 POWER SUPPLY VOLTAGE

1. Turn ignition switch OFF.

2. Make sure that starter motor connector E210 terminal 2 connection is clean and tight.

3. Check voltage between starter motor connector E210 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. Depress clutch pedal if the vehicle is equipped with M/T.

3. Check voltage between battery positive terminal and starter

motor connector E210 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)

(+)

(-)

Voltage

Connector

Terminal

E210

2

Ground

Battery voltage

AWBIA0122GB

(-)

(+)

Condition

Voltage

Connector

Terminal

E210

2

Battery (+) 

terminal

While cranking the 

engine

Less than 0.2V

AWBIA0123GB

B TERMINAL CIRCUIT

STR-15

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

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 is necessary.

Refer to 

STR-3, "Work Flow (With GR8-1200 NI)"

 or

STR-7, "Work Flow (Without GR8-1200 NI)"

.

NO

>> Check the starter motor case to engine mounting for

high resistance.

(+)

(-)

Condition

Voltage

Starter motor 

case

Battery (-) terminal

While cranking the 

engine

Less than 0.2V

AWBIA0124GB

STR-16

< DTC/CIRCUIT DIAGNOSIS >

S CONNECTOR CIRCUIT

S CONNECTOR CIRCUIT

Description

INFOID:0000000009485118

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 or

clutch pedal is depressed.

Diagnosis Procedure

INFOID:0000000009485119

Regarding Wiring Diagram information, refer to 

STR-18, "Wiring Diagram - With Clutch Interlock Cancel Sys-

tem"

 or 

STR-24, "Wiring Diagram - Without Clutch Interlock Cancel System"

.

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

1. Turn ignition switch OFF.

2. Disconnect starter motor connector E207.

3. Shift transmission into park or neutral.

4. Depress clutch pedal if the vehicle is equipped with M/T.

5. Check voltage between starter motor harness connector E207

terminal 1 and ground with the ignition in START.

Is battery voltage present?

YES

>> Magnetic switch circuit is OK. Further inspection is necessary. Refer to 

STR-3, "Work Flow (With

GR8-1200 NI)"

 or 

STR-7, "Work Flow (Without GR8-1200 NI)"

.

NO

>> GO TO 2

2.

CHECK CONNECTOR

1. Turn ignition switch OFF.

2. Check the IPDM E/R harness connector E120 and starter motor harness connector E207 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 E120.

2. Check continuity between starter motor harness connector E207 (A) terminal 1 and IPDM E/R harness

connector E120 (B) terminal 19.

3. Check continuity between starter motor harness connector E207 (A) terminal 1 and ground.

(+)

(-)

Condition

Voltage

Connector

Terminal

E207

1

Ground

While cranking the 

engine

Battery voltage

AWBIA0343ZZ

Starter motor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E207 (A)

1

E120 (B)

19

Yes

S CONNECTOR CIRCUIT

STR-17

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

A

STR

N

P

O

Are the continuity test results as specified?

YES

>> Further inspection is necessary. Refer to 

STR-3, "Work Flow (With GR8-1200 NI)"

 or 

STR-7,

"Work Flow (Without GR8-1200 NI)"

.

NO

>> Repair the harness.

Starter motor

—

Continuity

Connector

Terminal

E207 (A)

1

Ground

No