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Nissan Frontier. Manual - part 162

BRC-176

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

C1121, C1123, C1125, C1127 OUT ABS SOL

C1121, C1123, C1125, C1127 OUT ABS SOL

Description

INFOID:0000000009479462

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:0000000009479463

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

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-176, "Diagnosis Procedure"

>> Inspection End

Diagnosis Procedure

INFOID:0000000009479464

Regarding Wiring Diagram information, refer to

BRC-213, "Wiring Diagram - VDC WITH HILL DESCENT

CONTROL/HILL START ASSIST"

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-147, "CONSULT Function

(ABS)"

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

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

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

1. Turn ignition switch OFF.

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

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

C1121, C1123, C1125, C1127 OUT ABS SOL

BRC-177

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

BRC

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

>> Repair or replace malfunctioning components.

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-236, "Removal and Installa-

tion"

>> Repair or replace malfunctioning components.

Component Inspection

INFOID:0000000009479465

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

>> Go to diagnosis procedure. Refer to

BRC-176, "Diagnosis Procedure"

Special Repair Requirement

INFOID:0000000009479466

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-124, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-

TRAL POSITION : Description"

>> GO TO 2

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E127

Ground

Battery voltage

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E127

16, 47

Ground

Yes

Operation

ABS solenoid valve

Keep

Down

FR RH SOL

FR RH IN SOL

Off

FR RH OUT SOL

Off

On*

FR LH SOL

FR LH IN SOL

Off

FR LH OUT SOL

Off

On*

RR RH SOL

RR RH IN SOL

Off

RR RH OUT SOL

Off

On*

RR LH SOL

RR LH IN SOL

Off

RR LH OUT SOL

Off

On*

BRC-178

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

C1121, C1123, C1125, C1127 OUT ABS SOL

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-125, "CALIBRATION OF DECEL G SENSOR : Description"

>> END

C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL

BRC-179

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 2]

BRC

C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL

Description

INFOID:0000000009479467

ABS actuator and electric unit (control unit) and ECM exchange the engine signal with CAN communication

line.

DTC Logic

INFOID:0000000009479468

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

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-179, "Diagnosis Procedure"

>> Inspection End

Diagnosis Procedure

INFOID:0000000009479469

CHECK ENGINE SYSTEM

1. Perform ECM self-diagnosis. Repair or replace items indicated, then perform ECM self-diagnosis again.

Refer to

EC-518, "CONSULT Function"

2. Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to

BRC-147, "CONSULT Func-

tion (ABS)"

Is any item indicated on the self-diagnosis display?

YES

>> Repair or replace the affected part.

>> Inspection End

DTC

Display item

Malfunction detected condition

Possible cause

C1130

ENGINE SIGNAL 1

Based on the signal from ECM, ABS actuator and electric
unit (control unit) judges that engine fuel cut system is
malfunctioning.

• Harness or connector
• ABS actuator and electric unit

(control unit)

• ECM
• CAN communication line

C1131

ENGINE SIGNAL 2

C1132

ENGINE SIGNAL 3

C1133

ENGINE SIGNAL 4

C1136

ENGINE SIGNAL 6

Self-diagnosis results

ENGINE SIGNAL 1

ENGINE SIGNAL 2

ENGINE SIGNAL 3

ENGINE SIGNAL 4

ENGINE SIGNAL 6

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