Nissan Qashqai J11. Manual - part 968

C1166, C1167 SV SYSTEM

BRC-109

< DTC/CIRCUIT DIAGNOSIS >

[WITH ESP]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK SUCTION VALVE POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check 40 A fusible link (#K).

3.

Check continuity and short circuit between ABS actuator and electric unit (control unit) harness connector
terminal (1) and 40 A fusible link (#K).

Is the inspection result normal?

YES

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

PG-11, "Wiring Diagram - BATTERY

POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

5.

CHECK SUCTION VALVE GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK TERMINAL

Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness
connector.

Is the inspection result normal?

YES

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

BRC-142, "Removal and Installa-

tion"

.

NO

>> Repair or replace error-detected parts.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E18

1

Ground

10 

−

 16 V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

13

Ground

Existed

26

BRC-110

< DTC/CIRCUIT DIAGNOSIS >

[WITH ESP]

C1170 VARIANT CODING

C1170 VARIANT CODING

DTC Logic

INFOID:0000000010329848

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULT

 With 

CONSULT.

1.

Turn ignition switch ON.

2.

Perform self-diagnostic result.

Is DTC C1170 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-110, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010329849

1.

REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Replace ABS actuator and electric unit (control unit) even if other DTCs are displayed with “VARIANT COD-
ING” in self diagnostic result.

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

BRC-142, "Removal and Installa-

tion"

.

DTC

Display Item

Malfunction detected condition

Possible causes

C1170

VARIANT CODING

When the information in ABS actuator and electric 
unit (control unit) is not the same.

ABS actuator and electric unit 
(control unit)

C1197 VACUUM SENSOR

BRC-111

< DTC/CIRCUIT DIAGNOSIS >

[WITH ESP]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1197 VACUUM SENSOR

DTC Logic

INFOID:0000000010329850

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULT

 With 

CONSULT.

1.

Turn the ignition switch ON.

2.

Perform self-diagnostic result.

Is DTC C1197 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-111, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010329851

Regarding Wiring Diagram information, refer to 

BRC-55, "Wiring Diagram"

.

1.

CHECK BRAKE BOOSTER

1.

Turn the ignition switch OFF.

2.

Check brake booster. Refer to 

BR-14, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace brake booster. Refer to 

BR-29, "Exploded View"

.

2.

CHECK VACUUM PIPING

Check vacuum piping. Refer to 

BR-21, "FRONT : Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace vacuum piping. Refer to 

BR-32, "Exploded View"

.

3.

CHECK VACUUM SENSOR CIRCUIT

1.

Disconnect vacuum sensor harness connector.

2.

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

3.

Check continuity between vacuum sensor harness connector and ABS actuator and electric unit (control
unit) harness connector.

4.

Check continuity between vacuum sensor harness connector and ground.

DTC

Display Item

Malfunction detected condition

Possible causes

C1197

VACUUM SENSOR

When a malfunction is detected in vacuum sensor.

• Harness or connector
• Vacuum sensor (brake booster)
• Vacuum piping
• ABS actuator and electric unit 

(control unit)

Vacuum sensor

ABS actuator and electric unit (control unit)

Continuity

Connector

Terminal

Connector

Terminal

E51

1

E18

12

Yes

2

24

3

5

BRC-112

< DTC/CIRCUIT DIAGNOSIS >

[WITH ESP]

C1197 VACUUM SENSOR

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning components.

4.

CHECK TERMINAL

• Check vacuum sensor pin terminals for damage or loose connection with harness connector.
• Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-

ness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning components.

5.

REPLACE VACUUM SENSOR

With CONSULT

1.

Connect ABS actuator and electric unit (control unit) harness connector.

2.

Replace vacuum sensor.

CAUTION:

Always replace brake booster because vacuum sensor cannot be disassembled.

3.

Erase self-diagnosis result for “ABS”.

4.

Turn the ignition switch OFF.

5.

Start engine.

6.

Perform self-diagnosis for “ABS”.

Is DTC “C1197” detected?

YES

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

BRC-142, "Removal and Installa-

tion"

.

NO

>> Inspection End.

Vacuum sensor

—

Continuity

Connector

Terminal

E51

1

Ground

No

2

3