Nissan Frontier D22. Manual - part 178

TROUBLE DIAGNOSIS

BRC-43

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

>> GO TO 2.

2. 

CHECK FUSE

Check 10A fuse [No. 11 located in the fuse block (J/B)]. For fuse layout, refer to 

PG-9, "POWER SUPPLY

ROUTING"

 .

OK or NG?

OK

>> GO TO 3.

NG

>> Replace fuse.

3. 

CHECK POWER SUPPLY CIRCUIT

1.

Install 10A fuse [No. 11 located in the fuse block (J/B)].

2.

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

3.

Turn ignition switch ON.

4.

Check voltage between ABS actuator and electric unit (control
unit) connector E39 terminal 44 (L/W) and ground.

OK or NG?

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

CHECK INDICATOR BULB

Check indicator lamp bulb.

OK or NG?

OK

>> Repair harness or connectors between fuse and ABS actuator and electric unit (control unit) ter-

minal 44 (including combination meter).

NG

>> Replace combination meter.

5. 

CHECK CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) and combination meter connectors.

3.

Check continuity between ABS actuator and electric unit (control
unit) connector E39 terminal 44 (L/W) and combination meter
connector M38 terminal 24 (L/W).

Battery voltage should exist.

LFIA0184E

Continuity should exist.

LFIA0185E

BRC-44

[ABS]

TROUBLE DIAGNOSIS

OK or NG?

OK

>> Reconnect connectors and perform self-diagnosis. Repair or replace.

NG

>>

●

Check harness connectors E39, M38

●

Harness for open or short between ABS actuator and electric unit (control unit) and combina-
tion meter

Inspection 9 When "DECEL G-SENSOR" Appears on Self-Diagnosis Results 
Display (4WD Models)

EFS003H7

DTC C1113

Inspection Procedure

1. 

CHECKING SELF-DIAGNOSIS RESULTS

Check self-diagnosis results.

Does anything besides “DECEL G-SENSOR” appear on self-diagnosis results display?

YES

>> Inspect and repair the indicated items. Then perform self-diagnosis again to confirm repair.

NO

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

BRC-51, "ABS Actuator and Electric

Unit"

 . Then perform self-diagnosis again to confirm repair.

Symptom 1 ABS Works Frequently

EFS003H8

Inspection Procedure

1. 

STARTING INSPECTION

Inspect wheel sensor system.

●

Sensor mounting inspection

●

Sensor pick-up inspection for iron chips

●

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

●

Sensor connector engagement inspection

Is inspection result OK?

OK

>> GO TO 2.

NG

>> Repair wheel sensor and rotor system.

2. 

CHECKING FOR LOOSENESS

Check for looseness of front axle.

Is inspection result OK?

OK

>> GO TO 

BRC-44, "Symptom 2 Unexpected Pedal Reaction"

 .

NG

>> Axle inspection and repair.

Symptom 2 Unexpected Pedal Reaction

EFS003H9

Inspection Procedure

1. 

BRAKE PEDAL STROKE INSPECTION

Check brake pedal stroke.

Is stroke excessively long?

YES

>> Check bleeding and brake system.

NO

>> GO TO 2.

Self-diagnosis results

CONSULT-II display items

DECEL G-SENSOR

TROUBLE DIAGNOSIS

BRC-45

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

2. 

CHECKING PEDAL FORCE

Check that brake is effective with pedal depressed.

Is pedal heavy, but effective?

YES

>> Normal.

NO

>> GO TO 3.

3. 

CONNECTOR AND PERFORMANCE INSPECTION

Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS function. Check that
brake is effective.

Is brake effective?

YES

>> GO TO 4.

NO

>> Brake line inspection.

4. 

CHECKING ABS WARNING LAMP INDICATION

Check that ABS warning lamp illuminates.

Is inspection result OK?

OK

>> Perform self-diagnosis.

NG

>> GO TO 5.

5. 

CHECKING WHEEL SENSORS

Inspect wheel sensor system.

●

Sensor mounting inspection

●

Check sensor pick-up for adhering iron chips.

●

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

●

Sensor connector engagement inspection

Is inspection result OK?

OK

>> Normal.

NG

>> Repair wheel sensor and rotor system.

Symptom 3 Long Stopping Distance

EFS003HA

Inspection Procedure

1. 

STARTING INSPECTION

Check that stopping distance increases only on snowy roads and gravel roads.

Is inspection result OK?

OK

>> May be longer than for vehicles without ABS.

NG

>> GO TO 2.

2. 

CHECKING PERFORMANCE

Disconnect ABS actuator and electric unit (control unit) to deactivate ABS function.

Is stopping distance still long?

YES

>> Inspect brake lines for leaks or damage. Repair as necessary. Bleed brakes. Refer to 

BR-10,

"Bleeding Brake System"

 .

NO

>> GO TO 3.

3. 

CHECKING ABS WARNING LAMP INDICATION

Check that ABS warning lamp illuminates.

Is inspection result OK?

OK

>> Perform self-diagnosis.

NG

>> GO TO 4.

BRC-46

[ABS]

TROUBLE DIAGNOSIS

4. 

CHECKING WHEEL SENSORS

Inspect wheel sensor system.

●

Sensor mounting inspection

●

Check sensor pick-up for adhering iron chips.

●

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

●

Sensor connector engagement inspection

Is inspection result OK?

OK

>> Normal.

NG

>> Repair wheel sensor and rotor system.

Symptom 4 ABS Does Not Work

EFS003HB

Inspection Procedure

1. 

CHECKING ABS WARNING LAMP INDICATION

Check that ABS warning lamp illuminates.
Is inspection result OK?

OK

>> Perform self-diagnosis.

NG

>> GO TO 2.

2. 

CHECKING WHEEL SENSORS

Inspect wheel sensor system.

●

Sensor mounting inspection

●

Check sensor pick-up for adhering iron chips.

●

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

●

Sensor connector engagement inspection

Is inspection result OK?

OK

>> Normal.

NG

>> Repair wheel sensor and rotor system.

Symptom 5 Pedal Vibration and Noise

EFS003HC

Inspection Procedure

1. 

INSPECTION (1)

Check brake system for pedal vibration or noise at engine start.

Is inspection result OK?

OK

>> Perform self-diagnosis.

NG

>> GO TO 2.

2. 

INSPECTION (2)

Check for vibration during soft braking (just placing foot on pedal).

CAUTION:

ABS may activate in conditions such as those listed below, when wheel speed changes.

●

Gear shifting

●

Turning at high speed

●

Passing through gusts of wind

Is inspection result OK?

OK

>> GO TO 3.

NG

>> Normal.