Nissan Frontier D40. Manual — part 118
BRC-170
< SYMPTOM DIAGNOSIS >
[TYPE 2]
ABS FUNCTION DOES NOT OPERATE
ABS FUNCTION DOES NOT OPERATE
Diagnosis Procedure
INFOID:0000000005548370
CAUTION:
ABS does not operate when speed is 10 km/h (6 MPH) or lower.
1.
CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp turns OFF after ignition switch is turned ON or when driving.
Is the inspection result normal?
YES
>> Normal
NO
>> Perform self-diagnosis. Refer to
BRC-95, "CONSULT-III Function (ABS)"
.
PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
BRC-171
< SYMPTOM DIAGNOSIS >
[TYPE 2]
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PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
Diagnosis Procedure
INFOID:0000000005548371
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed. However, this is normal.
• When shifting gears
• When driving on slippery road
• During cornering at high speed
• When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
• When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1.
SYMPTOM CHECK 1
Check that there are pedal vibrations when the engine is started.
Do vibrations occur?
YES
>> GO TO 2
NO
>> Inspect the brake pedal.
2.
SYMPTOM CHECK 2
Check that there are ABS operation noises when the engine is started.
Do the operation noises occur?
YES
>> GO TO 3
NO
>> Perform self -diagnosis. Refer to
BRC-95, "CONSULT-III Function (ABS)"
3.
SYMPTOM CHECK 3
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES
>> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO
>> Normal
BRC-172
< SYMPTOM DIAGNOSIS >
[TYPE 2]
VEHICLE JERKS DURING VDC/TCS/ABS CONTROL
VEHICLE JERKS DURING VDC/TCS/ABS CONTROL
Diagnosis Procedure
INFOID:0000000005548372
1.
SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
Is the inspection result normal?
YES
>> Normal.
NO
>> GO TO 2
2.
CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to
.
Are self-diagnosis results indicated?
YES
>> Check corresponding items, make repairs, and perform ABS actuator and electric unit (control
unit) self-diagnosis.
NO
>> GO TO 3
3.
CHECK CONNECTOR
• Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check
terminal for deformation, disconnection, looseness, etc.
• Securely connect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis results indicated?
YES
>> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.
NO
>> GO TO 4
4.
CHECK ECM AND TCM SELF-DIAGNOSIS RESULTS
Perform ECM and TCM self-diagnosis.
Are self-diagnosis results indicated?
YES
>>
Check the corresponding items.
• ECM: Refer to
EC-528, "CONSULT-III Function (ENGINE)"
• TCM: Refer to
TM-151, "CONSULT-III Function (TRANSMISSION)"
.
NO
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-180, "Removal and Installa-
.
NORMAL OPERATING CONDITION
BRC-173
< SYMPTOM DIAGNOSIS >
[TYPE 2]
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NORMAL OPERATING CONDITION
Description
INFOID:0000000005548373
Symptom
Result
Slight vibrations are felt on the brake pedal and the operation noises occur, when VDC, TCS or ABS is acti-
vated.
This is a normal condi-
tion due to the VDC,
TCS or ABS activation.
Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
The brake pedal moves and generates noises, when TCS or VDC is activated due to rapid acceleration or
sharp turn.
The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and
just after the vehicle starts.
This is normal, and it is
caused by the ABS op-
eration check.
Depending on the road conditions, the driver may experience a sluggish feel.
This is normal, because
TCS places the highest
priority on the optimum
traction (stability).
TCS may activate momentarily if wheel speed changes when driving over location where friction coefficient
varies, when downshifting, or when fully depressing accelerator pedal.
The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn ON when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is rotating on a turntable or located on
a ship while the engine is running.
In this case, restart the
engine on a normal
road. If the normal con-
dition is restored, there
is no malfunction. At
that time, erase the self-
diagnosis memory.
VDC may not operate normally or the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp
may illuminate, when running on a special road that is extremely slanted (e.g. bank in a circuit course).
A malfunction may occur in the yaw rate/side/decel G sensor system, when the vehicle turns sharply, such
as during a spin turn, axle turn, or drift driving, while the VDC function is off (VDC OFF indicator lamp illumi-
nated).
The vehicle speed will not increase even though the accelerator pedal is depressed, when inspecting the
speedometer on a 2-wheel chassis dynamometer.
Normal (Deactivate the
VDC/TCS function be-
fore performing an in-
spection on a chassis
dynamometer.)
VDC OFF indicator lamp and SLIP indicator lamp may simultaneously turn on when low tire pressure warn-
ing lamp turns on.
This is not a VDC sys-
tem error but results
from characteristic
change of tire.
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