Nissan Maxima. Manual - part 11

ADP-36

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000010051705

Refer to 

LAN-24, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000010051706

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-36, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051707

Refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

.

Special Repair Requirement

INFOID:0000000010051708

Refer to Owner’s Manual.

DTC

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-37

< DTC/CIRCUIT DIAGNOSIS >

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B

ADP

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000010051709

Refer to 

LAN-24, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000010051710

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010051711

1.

 REPLACE DRIVER SEAT CONTROL UNIT

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

>> Replace driver seat control unit. Refer to 

ADP-169, "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-38

< DTC/CIRCUIT DIAGNOSIS >

B2130 EEPROM

B2130 EEPROM

DTC Logic

INFOID:0000000010051712

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT.
Is the DTC is detects?

YES

>> Refer to 

ADP-38, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051713

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-38, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

2.

 REPLACE DRIVER SEAT CONTROL UNIT

Replace driver seat control unit. Refer to 

ADP-169, "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-39

< DTC/CIRCUIT DIAGNOSIS >

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B2112 SLIDING MOTOR

Description

INFOID:0000000010051714

• The seat sliding motor is installed to the seat frame.

• The seat sliding motor is activated with the driver seat control unit.

• Slides the seat forward/backward by changing the rotation direction of sliding motor.

DTC Logic

INFOID:0000000010051715

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT.
Is the DTC is detects?

YES

>> Refer to 

ADP-39, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051716

Regarding Wiring Diagram information, refer to 

ADP-150, "Wiring Diagram"

.

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-43, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-41, "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.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2112

SEAT SLIDE

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

• Driver seat control unit
• Front power seat LH (sliding mo-

tor) harness is shorted

(+)

(–)

Voltage (V)

(Approx.)

Sliding motor

Connector

Terminals

B205

2

Ground

0

6