TM 9-2320-363-20-1
Table 3-2. ABS Troubleshooting (Cont)
Item
Action
Normal Indication
Corrective Action
4.
5.
6.
Voltage Output of Valve Relay 2.
With the ignition switch on and
engine not running, press
button 4.
Voltage Supply to Valve Relay 1.
With the ignition switch on and
engine not running, press
button 5.
Digital display should
be between 9.0 to
16.8 and the status
light must be on.
Digital display should
be between 00.0 to
00.3 and the status
light must be on.
Parallel Coil -Resistance of Air Solenoids.
With the ignition switch on and
engine not running, test each
air solenoid as follows:
Press buttons 6
front axle.
Press buttons 6
right front axle.
Press buttons 6
drive axle.
Press buttons 6
right drive axle.
and A for left
and B for
and C for left
and D for
Digital display for
each air solenoid
should be between
2.0 to 5.0.
l
l
•
l
l
l
If display number is blank or
00.0 to 10.7, replace relay 2
(page 4-307) or repair wiring
to relay 2 (page 3-2).
If problem still exists, go to
item 5.
If display number is blank or
00.4 to 16.8, replace relay 1
(page 4-307).
Repair wiring to warning light
relay (page 3-2).
Repair wiring to relay 2
(page 3-2).
If digital display is 0.0 to 1.9
for any air solenoid, check for
proper connection of air
solenoid, repair short circuit
(page 3-2), or replace air
solenoid (pages 4-576, 4-579).
If digital display is 5.1 to
19.9 for any air solenoid,
replace air solenoid
(pages 4-576, 4-579).
If digital display is 1
(meaning greater than 19.9)
for any air solenoid, check for
proper connection of air
solenoid to harness, repair
open circuit (page 3-2), or
replace air solenoid
(pages 4-576, 4-579).
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