Nissan Murano Z51. Manual — part 1045

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< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000005524857

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle
multiplex communication system with high data communication speed and excellent error detectability. Many
electronic control units are equipped onto vehicles, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H line, CAN-L line) 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-27, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000005524858

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524859

1.

PERFORM SELF DIAGNOSTIC

1.

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

2.

Check “Self Diagnostic Result” of “METER/M&A”.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to

LAN-17, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to

GI-39, "Intermittent Incident"

.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1000

CAN COMM CIRCUIT

When combination meter is not transmitting or
receiving CAN communication signal for 2
seconds or more.

CAN communication system

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U1010 CONTROL UNIT (CAN)

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< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000005524860

Initial diagnosis of combination meter.

DTC Logic

INFOID:0000000005524861

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524862

1.

REPLACE COMBINATION METER

When DTC “U1010” is detected, replace combination meter.

>> INSPECTION END

DTC

Display contents of CON-

SULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

If any malfunction is detected during initial di-
agnosis of combination meter CAN controller

Combination meter

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< DTC/CIRCUIT DIAGNOSIS >

B2205 VEHICLE SPEED

B2205 VEHICLE SPEED

Description

INFOID:0000000005524863

Vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) via CAN communication
to combination meter.

DTC Logic

INFOID:0000000005524864

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524865

1.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Perform “Self Diagnostic Result” of ABS actuator and electric unit (control unit), and repair or replace malfunc-
tioning parts.

>> Refer to

BRC-28, "CONSULT-III Function"

.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2205

VEHICLE SPEED

An abnormal vehicle speed signal is input
from ABS actuator and electric unit (control
unit) for 2 seconds or more

• Wheel sensor
• ABS actuator and electric unit (control unit)

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B2267 ENGINE SPEED

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< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2267 ENGINE SPEED

Description

INFOID:0000000005524866

The engine speed signal is transmitted from ECM to the combination meter via CAN communication.

DTC Logic

INFOID:0000000005524867

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524868

1.

PERFORM SELF-DIAGNOSIS OF ECM

Perform “Self Diagnostic Result” of ECM, and repair or replace malfunctioning parts.

>> Refer to

EC-116, "CONSULT-III Function"

.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2267

ENGINE SPEED

ECM continuously transmits abnormal engine
speed signals for 2 seconds or more

• Crankshaft position sensor (POS)
• ECM