Nissan Quest E52. Manual - part 370

DLK-194

< DTC/CIRCUIT DIAGNOSIS >

B241A ENCODER

B241A ENCODER

SLIDING DOOR LH

SLIDING DOOR LH : DTC Logic

INFOID:0000000009649091

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self Diagnostic Result” mode of “AUTO SLIDE DOOR” using CONSULT.

Is DTC detected?

YES

>> Refer to 

DLK-194, "SLIDING DOOR LH : Diagnosis Procedure"

.

NO

>> INSPECTION END

SLIDING DOOR LH : Diagnosis Procedure

INFOID:0000000009649092

1.

CHECK ENCODER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect automatic sliding door unit LH connector.

3.

Check voltage between automatic sliding door unit LH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ENCODER CIRCUIT

1.

Disconnect sliding door control unit LH connector.

2.

Check continuity between sliding door control unit LH harness connector and automatic sliding door unit
LH harness connector.

3.

Check continuity between sliding door control unit LH harness connector and ground.

Is the inspection result normal?

YES

>> Replace sliding door control unit LH. Refer to 

DLK-500, "LH : Removal and Installation"

.

NO

>> Repair or replace harness.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B241A

ENCDR PWR SUPLY

When battery voltage to encoder is 4.5 V or less

• Encoder
• Harness or connectors
• Sliding door control unit

(+)

(–)

Voltage

Automatic sliding door unit LH

Connector

Terminal

B65

5

Ground

8 – 16 V

Sliding door control unit LH

Automatic sliding door unit LH

Continuity 

Connector

Terminal

Connector

Terminal

B45

11

B65

5

Existed

Sliding door control unit LH

Ground

Continuity 

Connector

Terminal

B45

11

Not existed

B241A ENCODER

DLK-195

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

SLIDING DOOR RH

SLIDING DOOR RH : DTC Logic

INFOID:0000000009649093

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self Diagnostic Result” mode of “AUTO SLIDE DOOR RIGHT” using CONSULT.

Is DTC detected?

YES

>> Refer to 

DLK-195, "SLIDING DOOR RH : Diagnosis Procedure"

.

NO

>> INSPECTION END

SLIDING DOOR RH : Diagnosis Procedure

INFOID:0000000009649094

1.

CHECK ENCODER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect automatic sliding door unit RH connector.

3.

Check voltage between automatic sliding door unit RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ENCODER CIRCUIT

1.

Disconnect sliding door control unit RH connector.

2.

Check continuity between sliding door control unit RH harness connector and automatic sliding door unit
RH harness connector.

3.

Check continuity between sliding door control unit RH harness connector and ground.

Is the inspection result normal?

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B241A

ENCDR PWR SUPLY

When battery voltage to encoder is 4.5 V or less

• Encoder
• Harness or connectors
• Sliding door control unit

(+)

(–)

Voltage 

Automatic sliding door unit RH

Connector

Terminal

B247

11

Ground

8 – 16 V

Sliding door control unit RH

Automatic sliding door unit RH

Continuity 

Connector

Terminal

Connector

Terminal

B247

11

B244

5

Existed

Sliding door control unit RH

Ground

Continuity 

Connector

Terminal

B247

11

Not existed

DLK-196

< DTC/CIRCUIT DIAGNOSIS >

B241A ENCODER

YES

>> Replace sliding door control unit RH. Refer to 

DLK-500, "RH : Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

B2412 AUTOMATIC SLIDING DOOR MOTOR/ENCODER

DLK-197

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

B2412 AUTOMATIC SLIDING DOOR MOTOR/ENCODER

SLIDING DOOR LH

SLIDING DOOR LH : DTC Logic

INFOID:0000000009649095

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self Diagnostic Result” mode of “AUTO SLIDE DOOR” using CONSULT.

Is DTC detected?

YES

>> Refer to 

DLK-197, "SLIDING DOOR LH : Diagnosis Procedure"

.

NO

>> INSPECTION END

SLIDING DOOR LH : Diagnosis Procedure

INFOID:0000000009649096

1.

CHECK ENCODER MONITOR ITEM

1.

Select “AUTO SLDE DOOR” using CONSULT.

2.

Select “ENCODER A LH ” and “ENCODER B LH” in “DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 2.

2.

CHECK ENCODER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect automatic sliding door unit LH connector.

3.

Check voltage between automatic sliding door unit LH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK ENCODER CIRCUIT 1

1.

Disconnect sliding door control unit LH connector.

2.

Check continuity between sliding door control unit LH harness connector and automatic sliding door unit
LH harness connector.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2412

ASD MTR/ENCDR

When sliding door control unit transmits signal to 
automatic sliding door motor but pulse signal from 
encoder is not detected for 1 second or more

• Sliding door motor
• Encoder
• Harness or connectors

Monitor item

Condition

Status

ENCODER A LH

Sliding door LH

Moving (auto or manual)

HI 

⇔

 LO

When stopped

HI or LO

ENCODER B LH

Sliding door LH

Moving (auto or manual)

HI 

⇔

 LO

When stopped

HI or LO

(+)

(–)

Voltage

Automatic sliding door unit LH

Connector

Terminal

B65

5

Ground

8 – 16 V