July 2019
Service and Repair Manual
Control System Fault Codes
Part No. 1286829GT
S-
40 XC • S
-
45 XC • S
-
40 TraX •
S-45 TraX
87
ID Component ID Name
Cause
Effect
Solution
21 Pri Boom Up
/ Down
Joystick
11 Shorted
to supply
voltage
Circuit C164PUD is
above 4.5 V.
Boom Up and Down
functions will not
operate.
* Leave joystick in neutral position
and cycle power.
* If fault persists, with a voltmeter
check that C164PUD (RD/WH,
PCON J18-3) is at 2. 5V +/- 0.2 V at
startup and does not go above 4.5 V
or below 0.5 V when fully stroked in
each direction.
* Replace joystick if voltage check
fails.
28 Active at
startup
Circuit C164PUD
voltage was not
within the startup
voltage range of
2.5 V +/- 0.2 V.
22 Pri Boom Up
coil
11 Shorted
to supply
voltage
TCON detected
that C1PBU circuit
is shorted to 12 V.
Boom Up function
will not operate.
Boom Down will
also not operate if
short is to 12 V.
* With a voltmeter, measure Y22.
Proper resistance should be
between 5 - 60 ohms. Replace Y22 if
resistance is outside of those values.
* Verify wiring for C1PBU (RD,
TCON J4-10) and check for open or
short circuits.
23 Pri Boom
Down Coil
11 Shorted
to supply
voltage
TCON detected
that C2PBD circuit
is shorted to 12 V
or GND.
Boom Up and Down
functions will not
operate.
* With a voltmeter, measure Y21.
Proper resistance should be
between 5 - 60 ohms. Replace Y21 if
resistance is outside of those values.
* Verify wiring for C2PBD (RD/BK,
TCON J4-9) and check for open or
short circuits.
* Verify resistance between
Recovery Module pins J37-2 and
J37-11 is zero ohms.
Summary of Contents for S-40 TRAX
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Page 150: ...Service and Repair Manual July 2019 140 S 40 XC S 45 XC S 40 TraX S 45 TraX Part No 1286829GT ...
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Page 159: ......