ABS <4WD> -
On-vehicle Service
35B-30
(6) If the results of checking show an abnormality, fix the problem by following the “Judgment Table” below.
Judgment Table
No. MUT-II Operation
Judgment
Cause Remedy
display
Normal Problem
01 FR valve
(1) Depress the brake
pedal to lock the
wheels.
(2) Use the MUT-II to
Brake
force
less-
ens for
Wheel does
not lock
when brake
pedal is de-
Blocked brake line oth-
er than HBB line
Check and
clean the
brake line.
02 FL valve
(2) Use the MUT-II to
select the wheel to
be checked, an d
then force-drive the
ens for
3 sec-
onds
after
pedal is de-
pressed.
Blocked hydraulic cir-
cuit inside HBB
Replace the
HBB.
03 RR valve
then force-drive the
actuator.
(3) Check the brake
force for the selected
wheel using a brake
after
lock-
ing.
Brake force
does not
lessen.
HBB brake tubes con-
nected incorrectly
Connect the
tubes correct-
ly.
04 RL valve
force tester or by
rotating the wheel by
hand.
Malfunction of HBB
solenoid valve
Replace the
HBB.
(7) After checking, turn the ignition switch to the LOCK (OFF) position and then disconnect the MUT-
II
.
SOLENOID VALVE CHECK
Measure the resistance between the following solenoid valve
terminals.
D
Control solenoid valve IN (FR):
Between terminals 19 - 34
D
Control solenoid valve OUT (FR):
Between terminals 20 - 34
D
Control solenoid valve IN (FL)
: Between terminals 21 - 34
D
Control solenoid valve OUT (FL)
: Between terminals 22 - 34
D
Control solenoid valve IN (RR)
: Between terminals 15 - 34)
D
Control solenoid valve OUT (RR)
: Between terminals 16 - 34
D
Control solenoid valve IN (RL)
: Between terminals 13 - 34
D
Control solenoid valve OUT (RL)
: Between terminals 14 - 34
D
Select solenoid valve (FR)
: Between terminals 18 - 34
D
Select solenoid valve (FL)
: Between terminals 17 - 34
Standard value:
Control solenoid valve IN: 4.75 - 5.25
W
Control solenoid valve OUT: 2.0 - 2.4
W
Select solenoid valve: 3.5 - 3.9
W
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