Nissan Frontier. Manual - part 343

DLN-274

< SYSTEM DESCRIPTION >

[REAR FINAL DRIVE: M226 (ELD) ]

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000009479818

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable

Reference page

DLN-321

DLN-321

DLN-321

DLN-319

DLN-321

MA-1

6

DL

N-13

2, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

DL

N-17

2, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

DL

N-16

1, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

RAX-17

, "

N

V

H

 T

rou

bl

es

ho

oti

ng

 Cha

rt"

RSU-4,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

WT

-4

4,

 "NVH T

rou

bl

es

ho

ot

in

g 

C

h

ar

t"

WT

-4

4,

 "NVH T

rou

bl

es

ho

ot

in

g 

C

h

ar

t"

RAX-17

, "

N

V

H

 T

rou

bl

es

ho

oti

ng

 Cha

rt"

BR-5,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

ST

-5

, "NV

H

 T

rou

ble

shoo

ting

 Cha

rt"

Possible cause and SUSPECTED PARTS

Ge

ar t

oot

h ro

ug

h

G

ea

r co

nt

ac

t im

pro

pe

r

To

ot

h s

urf

ac

es

 worn

Ba

ckl

as

h i

ncorre

ct

Com

pa

ni

on 

fla

ng

e e

xce

ss

iv

e ru

no

ut

G

ea

r oi

l im

p

rop

er

PROPELLER SHAF

T

REAR AXLE

REAR SUSPE

NSION

TIRES

ROA

D

 WHEEL

AXLE SHAFT

BRAKES

STEERI

N

G

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

×

U1000 CAN COMM CIRCUIT

DLN-275

< DTC/CIRCUIT DIAGNOSIS >

[REAR FINAL DRIVE: M226 (ELD) ]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009479819

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each

control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to 

LAN-54, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000009479820

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009479821

1.

PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result” of differential lock control unit. 
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-42, "Intermittent Incident"

.

DTC

Display contents of CON-

SULT

Diagnostic item is detected when ...

Probable malfunction location

U1000

CAN COMM CIRCUIT

When differential lock control unit is not trans-
mitting or receiving CAN communication signal 
for 2 seconds or more.

CAN communication system

DLN-276

< DTC/CIRCUIT DIAGNOSIS >

[REAR FINAL DRIVE: M226 (ELD) ]

P1833 INITIAL START

P1833 INITIAL START

Description

INFOID:0000000009479822

Self-diagnosis memory function was suspended due to low battery voltage at the differential lock control unit. 

DTC Logic

INFOID:0000000009479823

Diagnosis Procedure

INFOID:0000000009479824

Regarding Wiring Diagram information, refer to 

DLN-298, "Wiring Diagram"

.

1.

CHECK DIFFERENTIAL LOCK CONTROL UNIT POWER SUPPLY 

1. Turn ignition switch OFF.

2. Disconnect differential lock control unit harness connector.

3. Turn ignition switch ON.

4. Check voltage between differential lock control unit harness

connector M70 terminals 1, 2, 15 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check fuse. Repair harness or connectors. 

2.

CHECK DIFFERENTIAL LOCK CONTROL UNIT GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between differential lock control unit harness

connector M70 terminals 3, 10 and ground.

Is the inspection result normal?

YES

>> Power and ground supply is normal.

NO

>> Repair harness or connectors.

DTC

Display contents of CONSULT

DTC Detection Condition

Action to take

P1833

INITIAL START [P1833]

Low battery voltage available to the differential lock con-
trol unit. 

Check differential lock con-
trol unit power supply and 
ground circuit. Refer to 

DLN-

276, "Diagnosis Procedure"

(+)

(-)

Voltage (Approx.)

Connector

Terminal

M70

1

Ground

Battery voltage

2

15

SDIA2563E

Connector

Terminal

—

Continuity

M70

3

Ground

Yes

10

SDIA2564E

P1834 CONTROL UNIT 1

DLN-277

< DTC/CIRCUIT DIAGNOSIS >

[REAR FINAL DRIVE: M226 (ELD) ]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

P1834 CONTROL UNIT 1

Description

INFOID:0000000009479825

Replace the differential lock control unit if this DTC is displayed. Refer to 

DLN-311, "Removal and Installation"

.

DTC Logic

INFOID:0000000009479826

DTC

Display contents of CONSULT

DTC Detection Condition

Action to take

P1834

CONTROL UNIT 1
[P1834]

A malfunction is detected in the memory (RAM) of the dif-
ferential lock control unit.

Replace differential lock 
control unit. Refer to 

DLN-

311, "Removal and Installa-
tion"

.