Infiniti G20 (P11). Manual — part 123
1. ABS Works Frequently
NCBR0104
1
CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to dual proportioning valve inspection in “DUAL PROPORTIONING VALVE”, BR-11.
Is brake fluid pressure distribution normal?
Yes
©
GO TO 2.
No
©
Perform Preliminary Check. Refer to BR-51.
2
CHECK WHEEL SENSOR
1. Check wheel sensor connector for terminal damage or loose connections.
2. Perform wheel sensor mechanical check.
Refer to “Wheel Sensor or Rotor”, BR-56.
Are wheel sensors functioning properly?
Yes
©
GO TO 3.
No
©
Repair.
3
CHECK FRONT AXLE
Check front and rear axles for excessive looseness. Refer to AX section, “Front Wheel Bearing”, “ON-VEHICLE SERVICE”
and “Rear Wheel Bearing”, “ON-VEHICLE SERVICE”.
Is front axle installed properly?
Yes
©
Go to “3. CHECK WARNING LAMP INDICATION” in “2. Unexpected Pedal Action”,
BR-67.
No
©
Repair.
2. Unexpected Pedal Action
NCBR0105
1
CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Is stroke excessively large?
SBR540A
Yes
©
Perform Preliminary Check. Refer to BR-51.
No
©
GO TO 2.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
1. ABS Works Frequently
BR-67
2
CHECK CONNECTOR AND PERFORMANCE
1. Disconnect ABS actuator and electric unit connector.
2. Check whether brake is effective.
OK or NG
Yes
©
GO TO 3.
No
©
Perform Preliminary Check. Refer to BR-51.
3
CHECK WARNING LAMP INDICATION
Ensure warning lamp remains off while driving.
SBR860E
Is warning lamp turned off?
Yes
©
GO TO 4.
No
©
Carry out self-diagnosis. Refer to BR-42, BR-44.
4
CHECK WHEEL SENSOR
1. Check wheel sensor connector for terminal damage or loose connection.
2. Perform wheel sensor mechanical check.
Is wheel sensor mechanism OK?
Yes
©
Check ABS actuator and electric unit pin terminals for damage or the connection of ABS
actuator and electric unit harness connector. Reconnect ABS actuator and electric unit
harness connector. Then retest.
No
©
Repair.
3. Long Stopping Distance
NCBR0106
1
CHECK CONNECTOR AND PERFORMANCE
1. Cancel ABS by disconnecting ABS actuator and electric unit connector.
2. Check whether stopping distance is still long.
OK or NG
OK
©
Perform Preliminary Check and air bleeding.
NG
©
Go to “3. CHECK WARNING LAMP INDICATION” in “2. Unexpected Pedal Action”,
BR-67.
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
2. Unexpected Pedal Action (Cont’d)
BR-68
NOTE:
Stopping distance may be longer than vehicles without ABS when
road condition is slippery.
4. ABS Does Not Work
NCBR0107
1
CHECK WARNING LAMP INDICATION
Does the ABS warning lamp activate?
Yes
©
Carry out self-diagnosis. Refer to BR-42, BR-44.
No
©
Go to “3. CHECK WARNING LAMP INDICATION” in “2. Unexpected Pedal Action”,
BR-67.
NOTE:
ABS does not work when vehicle speed is under 10 km/h (6 MPH).
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
3. Long Stopping Distance (Cont’d)
BR-69
5. Pedal Vibration and Noise
=NCBR0108
1
INSPECTION START
Pedal vibration and noise inspection
SAT797A
©
GO TO 2.
2
CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom appear only when engine is started?
Yes
©
Carry out self-diagnosis. Refer to BR-42, BR-44.
No
©
GO TO 3.
3
RECHECK SYMPTOM
Does the symptom appear when electrical equipment switches (such as headlamp) are operated?
Yes
©
GO TO 4.
No
©
Go to “3. CHECK WARNING LAMP INDICATION” in “2. Unexpected Pedal Action”,
BR-67.
4
CHECK WHEEL SENSOR
Check wheel sensor shield ground. For location of shield ground, refer to wiring diagram and “HARNESS LAYOUT” in EL
section.
Is wheel sensor shield grounded properly?
Yes
©
Check ABS actuator and electric unit pin terminals for damage or the connection of ABS
actuator and electric unit harness connector. Reconnect ABS actuator and electric unit
harness connector. Then retest.
No
©
Repair.
NOTE:
ABS may operate and cause vibration under any of the following
conditions.
I
Applying brake gradually when shifting or operating clutch.
I
Low friction (slippery) road.
I
High speed cornering.
I
Driving over bumps and pot holes.
I
Engine speed is over 5,000 rpm with vehicle stopped.
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS
5. Pedal Vibration and Noise
BR-70
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст