Nissan Juke F15. Manual - part 134

U1010 CONTROL UNIT (CAN)

BRC-127

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000012199722

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle, and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000012199723

DTC DETECTION LOGIC

POSSIBLE CAUSE

NOTE:

Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear

DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF

and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Turn the ignition switch OFF.

NOTE:

Wait at least 10 seconds after turning ignition switch OFF.

2. Start the engine.

NOTE:

Wait at least 10 seconds after start the engine.

3. Perform self-diagnosis for “ABS”.
Is DTC “U1010” detected?

YES-1 >> “CRNT” is displayed: Proceed to 

BRC-127, "Diagnosis Procedure"

.

YES-2 >> “PAST” is displayed: INSPECTION END (Erase the memory of self-diagnosis results.)

NO-1 >> To check malfunction symptom before repair: Refer to 

GI-45, "Intermittent Incident"

.

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000012199724

1.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Check the ABS actuator and electric unit (control unit) harness connector for disconnection and deformation.
Is the inspection result normal?

DTC

Display item

(Trouble diagnosis content)

Malfunction detected condition

U1010

CONTROL UNIT (CAN)
(Control unit [CAN communication])

When detecting error during the initial diagnosis of CAN controller of ABS actuator 
and electric unit (control unit).

PAST DTC

CRNT DTC

• CAN communication line
• Harness or connector

ABS actuator and electric unit (control unit)

BRC-128

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

U1010 CONTROL UNIT (CAN)

YES

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-153, "Removal and Installa-

tion"

.

NO

>> Repair / replace harness, connector, or terminal.

POWER SUPPLY AND GROUND CIRCUIT

BRC-129

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

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POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000012199725

1.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY (1)

1. Turn the ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) harness connector.

3. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

4. Turn the ignition switch ON

NOTE:

Start the engine.

5. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check the 10A fuse (#57).

3. Disconnect IPDM E/R harness connector.

4. Check the continuity between ABS actuator and electric unit (control unit) harness connector and IPDM E/

R harness connector.

5. Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> Perform trouble diagnosis for ignition power supply. Refer to 

PG-43, "Wiring Diagram - IGNITION

POWER SUPPLY -"

.

NO

>> Repair / replace harness, connector, or fuse.

3.

CHECK MOTOR AND MOTOR RELAY POWER SUPPLY

1. Turn the ignition switch OFF.

2. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

+

−

Voltage

ABS actuator and electric unit (control unit)

Connector

Terminal

E35

16

Ground

Approx. 0 V

+

−

Voltage

ABS actuator and electric unit (control unit)

Connector

Terminal

E35

16

Ground

10 

− 16 V

ABS actuator and electric unit (control unit)

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E35

16

E15

59

Existed

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E35

16

Ground

No existed

BRC-130

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check the 30A fusible link (K).

3. Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-

nector terminal (1) and 30A fusible link (K).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for battery power supply. Refer to 

PG-12, "Wiring Diagram - BATTERY

POWER SUPPLY -"

.

NO

>> Repair / replace harness, connector, or fusible link.

5.

CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY

1. Turn the ignition switch OFF.

2. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check the 50A fusible link (I).

3. Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-

nector terminal (2) and 50A fusible link (I).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for battery power supply. Refer to 

PG-12, "Wiring Diagram - BATTERY

POWER SUPPLY -"

.

NO

>> Repair / replace harness, connector, or fusible link.

7.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair / replace harness, connector, or terminal.

8.

CHECK TERMINAL

+

−

Voltage

ABS actuator and electric unit (control unit)

Connector

Terminal

E35

1

Ground

10 

− 16 V

+

−

Voltage

ABS actuator and electric unit (control unit)

Connector

Terminal

E35

2

Ground

10 

− 16 V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E35

3

Ground

Existed

4