Nissan Frontier D40. Instruction — part 135

BRC-238

< COMPONENT DIAGNOSIS >

[TYPE 3]

C1120, C1122, C1124, C1126 IN ABS SOL

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to

BRC-190, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

C1121, C1123, C1125, C1127 OUT ABS SOL

BRC-239

< COMPONENT DIAGNOSIS >

[TYPE 3]

C

D

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G

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A

B

BRC

N

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C1121, C1123, C1125, C1127 OUT ABS SOL

Description

INFOID:0000000005275294

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:0000000005275295

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-239, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005549799

Regarding Wiring Diagram information, refer to

BRC-275, "Wiring Diagram - BRAKE CONTROL SYSTEM -

WITH HILL DESCENT CONTROL/HILL START ASSIST"

.

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-212, "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, VDC SWITCH-OVER VALVE 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.

C1125

RR LH OUT ABS SOL

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

C1127

RR RH OUT ABS SOL

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

Self-diagnosis results

FR LH OUT ABS SOL

FR RH OUT ABS SOL

RR LH OUT ABS SOL

RR RH OUT ABS SOL

BRC-240

< COMPONENT DIAGNOSIS >

[TYPE 3]

C1121, C1123, C1125, C1127 OUT 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 E127 terminal 32 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace malfunctioning components.

3.

CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT

Check continuity between ABS actuator and electric unit (control
unit) connector E127 terminals 16, 47 and ground.

Is the inspection result normal?

YES

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

Refer to

BRC-300, "Removal and Installation"

.

NO

>> Repair or replace malfunctioning components.

Component Inspection

INFOID:0000000005549800

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-239, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000005549802

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to

BRC-189, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-

TRAL POSITION : Description"

.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E127

32

Ground

Battery voltage

AWFIA0018ZZ

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E127

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*

RR RH SOL

RR RH IN SOL

Off

On

On

RR RH OUT SOL

Off

Off

On*

RR LH SOL

RR LH IN SOL

Off

On

On

RR LH OUT SOL

Off

Off

On*

C1121, C1123, C1125, C1127 OUT ABS SOL

BRC-241

< COMPONENT DIAGNOSIS >

[TYPE 3]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to

BRC-190, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END