TM 9-2320-363-20-1
Table 3-2. ABS Troubleshooting
Item
Action
Normal Indication
Corrective Action
2.
3.
NOTE
Ignition switch must be turned on for all ABS troubleshooting
test unit. Do not turn ignition switch off during testing.
Status Light Relay and Valve Relay Coils Circuits.
With the ignition switch on and
engine not running, press
button 1.
Voltage Output of Valve Relay 1.
I
With the ignition switch on and
I
engine not running, press
button 2.
I
Voltage Supply to Valve Relay 2.
With the ignition switch on and
engine not running, press
button 3.
Digital display should
be between 330 to
669.
Digital display should
be between 9.0 to
16.8.
Digital display should
be between 00.0 to
00.3.
l
l
l
l
•
l
•
l
l
tests to provide power for
If digital display is blank,
troubleshoot input power circuit
(page 3-18).
If display number is 000 to
329, replace status light
(page 4-309) or go to item 2.
If OVERLOAD light comes on
or display number is between
661 to 1999, go to item 2.
If display number is blank
or 10.30, replace relay 1
(page 4-307) or repair open
or short circuits (page 3-2).
Troubleshoot ‘input power
circuit (page 3-18).
Troubleshoot charging circuit
(page 3-24).
If problem still exists, go to
item 3.
If display number is blank or
00.4 to 16.8, replace relay 2
(page 4-307) or repair wiring
to relay 1 (page 3-2).
If problem still exists, go to
item 4.
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