Nissan Cube. Manual - part 68

BCS

U1010 CONTROL UNIT (CAN)

BCS-121

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

C

D

E

F

G

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U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000009949788

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009949789

1.

REPLACE BCM

When DTC “U1010” is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-155, "Removal and Installation"

.

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

BCS-122

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

C1735 IGN CIRCUIT OPEN

C1735 IGN CIRCUIT OPEN

DTC Logic

INFOID:0000000009949790

DTC DETECTION LOGIC

NOTE:

BCM may detect that ignition switch is OFF when IGN power supply voltage is low.

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase DTC.

2.

Turn the ignition switch OFF.

3.

Perform the “Self Diagnostic Result” of CONSULT, when passed 2 seconds or more after the ignition
switch is turned ON.

Is any DTC detected?

YES

>> Refer to 

BCS-122, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009949791

1.

CHECK BCM IGNITION POWER SUPPLY CIRCUIT

Check BCM ignition power supply circuit. Refer to 

BCS-123, "Diagnosis Procedure"

.

Is the circuit normal?

YES

>> GO TO 2.

NO

>> Repair the malfunctioning part.

2.

CHECK IPDM E/R POWER SUPPLY CIRCUIT

Check IPDM E/R power supply circuit. Refer to 

PCS-49, "Diagnosis Procedure"

.

Is the circuit normal?

YES

>> GO TO 3.

NO

>> Repair the malfunctioning part.

3.

CHECK IPDM E/R IGNITION RELAY STATUS

CONSULT DATA MONITOR

1.

Select “IGN RLY” of IPDM E/R data monitor item.

2.

With operating the ignition switch, check the monitor status.

Is the item status normal?

YES

>> Replace BCM. Refer to 

BCS-155, "Removal and Installation"

.

NO

>> Replace IPDM E/R. Refer to 

PCS-64, "Removal and Installation"

.

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

C1735

IGN CIRCUIT OPEN

Detected following signals are different for 2 seconds;
• Ignition switch ON signal inputted from ignition switch
• Ignition relay status signal received from IPDM E/R 

with CAN communication

• Harness or connector (Ignition power 

supply circuit)

• BCM
• IPDM E/R

Monitor item

Condition

Monitor status

IGN RLY

Ignition switch

OFF

Off

ON

On

BCS

POWER SUPPLY AND GROUND CIRCUIT

BCS-123

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000009949792

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 connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Fuses and fusible link No.

Battery power supply

8

G

ACC power supply

20

Ignition power supply

2

Terminals

Ignition switch position

(+)

(

−

)

BCM

OFF

ACC

ON

Connector

Terminal

M67

70

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

57

M65

11

Approx. 

0 V

Battery 
voltage

Battery 
voltage

38

Approx. 

0 V

Approx. 

0 V

Battery 
voltage

BCM

Ground

Continuity

Connector

Terminal

M67

67

Existed

BCS-124

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

COMBINATION SWITCH OUTPUT CIRCUIT

COMBINATION SWITCH OUTPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000009949793

1.

CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination switch connectors.

3.

Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist?

YES

>> GO TO 2.

NO

>> Repair harnesses or connectors.

2.

CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair harnesses or connectors.

NO

>> GO TO 3.

3.

CHECK BCM OUTPUT VOLTAGE

1.

Connect BCM connector.

2.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

OUTPUT 1

M65

36

M27

11

Existed

OUTPUT 2

35

9

OUTPUT 3

34

7

OUTPUT 4

33

10

OUTPUT 5

32

13

System

BCM

Ground

Continuity

Connector

Terminal

OUTPUT 1

M65

36

Not existed

OUTPUT 2

35

OUTPUT 3

34

OUTPUT 4

33

OUTPUT 5

32

System

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

OUTPUT 1

M65

36

7.0 - 8.0 V

OUTPUT 2

35

OUTPUT 3

34

OUTPUT 4

33

OUTPUT 5

32

PKIB4960J