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ABS <2WD> -
On-vehicle Service
35B-23
Diagnosis Table
No. Operation Judgement
- Normal
Judgement
- Abnormal
Probable cause Remedy
01 (1) Depress brake pedal
to lock wheel.
(2) Using the MUT-II,
Brake force
released for 3
seconds after
Wheel does not
lock when brake
pedal is de-
Clogged brake
line other than
hydraulic unit
Check and clean
brake line
02
select the wheel to be
checked and force the
actuator to operate.
(3) Turn the selected
locking. pressed.
Clogged hydrau-
lic circuit in
hydraulic unit
Replace hydrau-
lic unit assembly
03
wheel manually to
check the change of
brake force.
Brake force is
not released
Incorrect hydrau-
lic unit brake
tube connection
Connect correct-
ly
04 Hydraulic unit
solenoid valve
not functioning
correctly
Replace hydrau-
lic unit assembly
REMEDY FOR A FLAT BATTERY
35200350188
When booster cables are used to start the engine when the
battery is completely flat and then the vehicle is immediately
driven without waiting for the battery to recharge itself to
some extent, the engine may misfire, a n d driving might not
be possible.
This happens because ABS consumes a great amount of
current for its self-check function; the remedy is to either
allow the battery to recharge sufficiently, or to remove the
fusible link for ABS circuit, thus disabling the anti-skid brake
system. The ABS warning lamp will illuminate when the fusible
link (for ABS) is removed.
After the battery has sufficiently recharged, install the fusible
link (for ABS) and restart the engine; then check to be sure
the ABS warning lamp is not illuminated.
Fusible link