Nissan Tiida C11. Manual - part 41

BCS-28

< COMPONENT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000001451482

Refer to 

LAN-33, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000001451483

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001451484

1.

 PERFORM SELF DIAGNOSTIC

1.

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

2.

Check “Self Diagnostic Result” of BCM.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-22, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-55, "Intermittent Incident"

.

DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.

Any item (or items) of the following listed below is 
malfunctioning in CAN communication system.
• Transmission
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (TCM)
• Receiving (MULTI AV)
• Receiving (IPDM E/R)
• Receiving (I-KEY)

BCS

U1010 CONTROL UNIT (CAN)

BCS-29

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000001451485

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001451486

1.

 REPLACE BCM

When “DTC:U1010” is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

Special Repair Requirement

INFOID:0000000001451487

1.

 ADDITIONAL SERVICE WHEN REPLACING BCM

>> Refer to 

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair

Requirement"

.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of CAN control-
ler of BCM.

BCM

BCS-30

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000001451488

1.

 CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not fusing.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

 CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

Terminal No.

Signal name

Fuses and fusible link No.

22

Battery power supply

9 (10A)

72

8 (10A)

74

G (40A)

79

24

Ignition power supply

55 (10A)

Terminals

Ignition switch position

(+)

(

−

)

BCM

OFF

ACC

ON

Connector

Terminal

M18

22

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

24

Approx. 

0 V

Approx. 

0 V

Battery 
voltage

M20

72

Battery 
voltage

Battery 
voltage

Battery 
voltage

74

79

ALMIA0188ZZ

BCM

Ground

Continuity

Connector

Terminal

M18

2

Yes

M20

70

ALMIA0189ZZ

BCS

COMBINATION SWITCH INPUT CIRCUIT

BCS-31

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

COMBINATION SWITCH INPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000001451489

1.

 CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination switch.

3.

Check continuity between BCM harness connector and combi-
nation switch harness connector.

Does continuity exist?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

 CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> GO TO 3

3.

 CHECK BCM OUTPUT VOLTAGE

1.

Connect BCM.

2.

Turn ignition switch ON.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

INPUT 1

M20

(A)

9

M28

(B)

1

Yes

INPUT 2

28

2

INPUT 3

8

3

INPUT 4

27

4

INPUT 5

7

5

ALMIA0190ZZ

System

BCM

Ground

Continuity

Connector

Terminal

INPUT 1

M20

9

No

INPUT 2

28

INPUT 3

8

INPUT 4

27

INPUT 5

7

ALMIA0191ZZ

System

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

INPUT 1

M20

9

Refer to 

BCS-

35, "Refer-

ence Value"

.

INPUT 2

28

INPUT 3

8

INPUT 4

27

INPUT 5

7

ALMIA0192ZZ