Nissan Frontier D40. Manual - part 85

BRC-38

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1115 WHEEL SENSOR

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-36, "Diagnosis Procedure"

.

Wheel sensor

Vehicle speed (DATA MONITOR)

FR LH SENSOR

Nearly matches the speedometer dis-
play (

±

10% or less)

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR

C1120, C1122, C1190 IN ABS SOL

BRC-39

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1120, C1122, C1190 IN ABS SOL

Description

INFOID:0000000005275070

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit). 

DTC Logic

INFOID:0000000005275071

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Is above displayed on the self-diagnosis display?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-39, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005275072

Regarding Wiring Diagram information, refer to 

BRC-51, "Wiring Diagram - BRAKE CONTROL SYSTEM -

ABS"

.

1.

CONNECTOR INSPECTION

1.

Turn ignition switch OFF.

2.

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

3.

Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminals.

4.

Reconnect connectors and then perform the self-diagnosis. Refer to 

BRC-21, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

NO

>> Poor connection of connector terminals. Repair or replace connector.

2.

CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT

DTC

Display item

Malfunction detected condition

Possible cause

C1120

FR LH IN ABS SOL

When the control unit detects a malfunction in the front 
LH inlet solenoid circuit.

• ABS actuator and electric unit 

(control unit)

C1122

FR RH IN ABS SOL

When the control unit detects a malfunction in the front 
RH inlet solenoid circuit.

C1190

R-EV

When the control unit detects a malfunction in the rear in-
let solenoid circuit.

Self-diagnosis results

FR LH IN ABS SOL

FR RH IN ABS SOL

R-EV

BRC-40

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1120, C1122, C1190 IN ABS SOL

1.

Turn ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) connec-
tor.

3.

Check voltage between ABS actuator and electric unit (control
unit) connector E125 terminal 32 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace malfunctioning components.

3.

CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT

Check continuity between ABS actuator and electric unit (control
unit) connector E125 terminals 16, 47 and ground.

Is the inspection result normal?

YES

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

Refer to 

BRC-71, "Removal and Installation"

.

NO

>> Repair or replace malfunctioning components.

Component Inspection

INFOID:0000000005275073

1.

CHECK ACTIVE TEST

1.

Select each test menu item on “ACTIVE TEST”.

2.

On the display, touch “Up”, “Keep”, and “Down”, and check that the system operates as shown in the table
below.

*: On for 1 to 2 seconds after the touch, and then Off

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-39, "Diagnosis Procedure"

.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E125

32

Ground

Battery voltage

AWFIA0018ZZ

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E125

16, 47

Ground

Yes

AWFIA0016ZZ

Operation

ABS solenoid valve

Up

Keep

Down

FR RH SOL

FR RH IN SOL

Off

On

On

FR RH OUT SOL

Off

Off

On*

FR LH SOL

FR LH IN SOL

Off

On

On

FR LH OUT SOL

Off

Off

On*

REAR SOL

RR RH IN SOL

Off

On

On

RR RH OUT SOL

Off

Off

On*

RR LH IN SOL

Off

On

On

RR LH OUT SOL

Off

Off

On*

C1121, C1123, C1191 OUT ABS SOL

BRC-41

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1121, C1123, C1191 OUT ABS SOL

Description

INFOID:0000000005275074

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit). 

DTC Logic

INFOID:0000000005275075

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Is above displayed on the self-diagnosis display?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-41, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005549005

Regarding Wiring Diagram information, refer to 

BRC-51, "Wiring Diagram - BRAKE CONTROL SYSTEM -

ABS"

.

1.

CONNECTOR INSPECTION

1.

Turn ignition switch OFF.

2.

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

3.

Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminals.

4.

Reconnect connectors and then perform the self-diagnosis. Refer to 

BRC-21, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

NO

>> Poor connection of connector terminals. Repair or replace connector.

2.

CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT

DTC

Display item

Malfunction detected condition

Possible cause

C1121

FR LH OUT ABS SOL

When the control unit detects a malfunction in the front 
LH outlet solenoid circuit.

• ABS actuator and electric unit 

(control unit)

C1123

FR RH OUT ABS SOL

When the control unit detects a malfunction in the front 
RH outlet solenoid circuit.

C1191

R-AV

When the control unit detects a malfunction in the rear 
outlet solenoid circuit.

Self-diagnosis results

FR LH OUT ABS SOL

FR RH OUT ABS SOL

R-AV