Nissan Murano. Manual - part 13

ADP-44

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009720656

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, 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-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.

DTC Logic

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DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

STEP 1

Turn ignition switch ON and wait at least 3 seconds.

>> GO TO 2.

2.

STEP 2

Check “Self diagnostic result” with CONSULT.

Is the DTC detected?

YES

>> Perform diagnosis procedure. Refer to 

ADP-44, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720658

Refer to 

LAN-18, "Trouble Diagnosis Flow Chart"

.

Special Repair Requirement

INFOID:0000000009720659

Refer to 

ADP-9, "SYSTEM INITIALIZATION : Description"

.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

U1000

CAN COMM CIR-
CUIT

• Driver seat control unit cannot communicate to other 

control units.

• Driver seat control unit cannot communicate for more 

than the specified time.

• Harness or connectors

(CAN communication line is 
open or shorted)

U1010 CONTROL UNIT (CAN)

ADP-45

< DTC/CIRCUIT DIAGNOSIS >

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B

ADP

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000009720660

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, 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 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-29, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000009720661

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009720662

1.

REPLACE DRIVER SEAT CONTROL UNIT

When DTC [U1010] is detected, replace driver seat control unit.

>> Replace driver seat control unit.Refer to 

ADP-210, "Removal and Installation"

.

DTC 

No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of CAN con-
troller of driver seat control unit.

• Driver seat control unit

ADP-46

< DTC/CIRCUIT DIAGNOSIS >

B2130 EEPROM

B2130 EEPROM

DTC Logic

INFOID:0000000009720663

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

STEP 1

Turn ignition switch ON.

>> GO TO 2.

2.

STEP 2

Check “Self diagnostic result” with CONSULT.

Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-46, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720664

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT.

3.

Erase the DTC.

4.

Perform DTC confirmation procedure. Refer to 

ADP-46, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

2.

REPLACE DRIVER SEAT CONTROL UNIT

Replace driver seat control unit. Refer to 

ADP-210, "Removal and Installation"

.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2130

EEPROM

Driver seat control unit detected CPU malfunction.

• Driver seat control unit

B2112 SLIDING MOTOR

ADP-47

< DTC/CIRCUIT DIAGNOSIS >

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B2112 SLIDING MOTOR

Description

INFOID:0000000009720665

• The sliding motor is installed to the seat cushion frame.
• The sliding motor is activated with the driver seat control unit.
• Slides the seat frontward/ rearward by changing the rotation direction of sliding motor.

DTC Logic

INFOID:0000000009720666

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

STEP 1

Turn ignition switch ON.

>> GO TO 2.

2.

STEP 2

Check “Self diagnostic result” with CONSULT.

Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-47, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720667

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT.

3.

Erase the DTC.

4.

Perform DTC confirmation procedure. Refer to 

ADP-47, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

2.

CHECK SLIDING MOTOR CIRCUIT (POWER SHORT)

1.

Turn ignition switch OFF.

2.

Disconnect sliding motor and driver seat control unit connector.

3.

Check voltage between sliding motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL 

1.

Connect driver seat control unit connector.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2112

SEAT SLIDE

The driver seat control unit detects the output of sliding 
motor output terminal for 0.1 second or more even if 
the sliding switch is not input.

• Driver seat control unit
• Slide motor harness is shorted

(+)

(–)

Voltage (V)

(Approx.)

Sliding motor

Connector

Terminals

B461

50

Ground

0

51