Infiniti QX56 (Z62). Manual - part 16

U1010 CONTROL UNIT (CAN)

ADP-57

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000006248340

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006248341

1.

REPLACE DRIVER SEAT CONTROL UNIT

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

>> Replace driver seat control unit.

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-58

< DTC/CIRCUIT DIAGNOSIS >

B2112 SLIDING MOTOR

B2112 SLIDING MOTOR

DTC Logic

INFOID:0000000006248342

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-III.
Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-58, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006248343

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Erase the DTC.

4.

Perform DTC confirmation procedure. Refer to 

ADP-58, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-40, "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.

2.

Check voltage between driver seat control unit harness connector and ground.

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
• Slide motor harness is shorted

(+)

(-)

Voltage (V)

(Approx.)

Sliding motor

Connector

Terminals

B461

34

Ground

0

38

B2112 SLIDING MOTOR

ADP-59

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace driver seat control unit.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

(+)

(-)

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminals

B451

34

Ground

0

38

ADP-60

< DTC/CIRCUIT DIAGNOSIS >

B2113 RECLINING MOTOR

B2113 RECLINING MOTOR

DTC Logic

INFOID:0000000006248344

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-III.
Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-60, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006248345

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Erase the DTC.

4.

Perform DTC confirmation procedure. Refer to 

ADP-60, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

2.

CHECK RECLINING MOTOR CIRCUIT (POWER SHORT)

1.

Turn ignition switch OFF.

2.

Disconnect reclining motor and driver seat control unit connector.

3.

Check voltage between reclining 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.

2.

Check voltage between driver seat control unit harness connector and ground.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2113

SEAT RECLINING

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

• Driver seat control unit
• Reclining motor harness is short-

ed

(+)

(-)

Voltage (V)

(Approx.)

Reclining motor

Connector

Terminals

B454

35

Ground

0

39