2005 NISSAN NAVARA Brc

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NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
BRC-23
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
For Fast and Accurate DiagnosisEFS005TX
PRECAUTIONS FOR DIAGNOSIS
lBefore performing diagnosis, always read precautions. Refer toBRC-17, "CONS

TROUBLE DIAGNOSIS
BRC-23
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
For Fast and Accurate DiagnosisEFS005TX
PRECAUTIONS FOR DIAGNOSIS
lBefore performing diagnosis, always read precautions. Refer toBRC-17, "CONSULT- II Functions".
lAfter diagnosis is finished, be sure to erase memory. Refer toBRC-18, "ERASE MEMORY".
lWhen checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.
lFor intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.
lIf a circuit tester is used for check, be careful not to forcibly extend any connector terminal.
lABS system electrically controls brake operation and engine output. Following symptoms may be caused
by normal operations:
Basic InspectionEFS005TY
BASIC INSPECTION 1 BRAKE FLUID LEVEL, LEAKS, AND BRAKE PADS
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill brake fluid.
2. Check brake tube and around ABS actuator and electric unit (control unit) for leaks. If leakage or seepage
is found, check the following items.
lIf ABS actuator and electric unit (control unit) connection is loose, tighten brake tube to the specified
torque and re-conduct the leak inspection to make sure there are no leakage.
lIf there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and re-conduct the leak inspection to make sure there are no leakage.
lIf there is leakage or seepage at any location other than ABS actuator and electric unit (control unit)
connection, wipe away leakage or seepage with clean cloth. Then inspect again and confirm than there
is on leakage.
lIf there is leakage from ABS actuator and electric unit (control unit), wipe away leakage or seepage with
clean cloth. Then inspect again. If there is leakage or seepage, replace ABS actuator and electric unit
(control unit).
CAUTION:
ABS actuator and electric unit (control unit) body cannot be disassembled.
3. Check brake pad degree of wear. Refer toBR-24, "
PAD WEAR INSPECTION"in “Front Disc Brake” and
BR-32, "
Lining Thickness Inspection"in “Rear Drum Brake”.
BASIC INSPECTION 2 POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure battery positive cable, negative cable and ground connection are not loose. In addition, check the
battery voltage to make sure it has not dropped and alternator is normal.
Symptom Symptom description Result
Motor operation noiseThis is noise of motor inside ABS actuator and electric unit (control unit). Slight
noise may occur during ABS operation.
Normal
Just after engine starts, motor operating noise may be heard. This is a normal
status of the system operation check.
System operation check noiseWhen engine starts, slight “click” noise may be heard from engine compart-
ment. This is normal and is part of system operation check.Normal
ABS operation
(Longer stopping distance)When driving on roads with a low coefficient of friction, such as snowy roads
or gravel roads, the stopping distance is sometimes longer for vehicles
equipped with ABS. Therefore, when driving on such roads, drive at a suffi-
ciently reduced speed to be safe.Normal