October 2019
Service and Repair Manual
Control System Fault Codes
Part No. 1280490GT
S
®
-80 XC
™
• S
®
-85 XC
™
•
S
®
-
80 HF • S
®
-85 HF
109
ID Component ID Name
Cause
Effect
Solution
160 Steer Left
Valve
12 Circuit
shorted to
V+
TCON detected
that C37STL
circuit is shorted
to 12 V.
Steer Left
function will
not operate.
* With a voltmeter, measure Y3. Proper
resistance should be between 5 - 60
ohms. Replace Y3 if resistance is outside
of those values.
* Verify wiring for C37STL (BL/BK, TCON
J4-11) and check for open or short circuits.
15 Circuit
shorted to
GND
TCON detected
that C37STL
circuit is shorted
to GND.
161 Steer Right
Valve
12 Circuit
shorted to
V+
TCON detected
that C36STR
circuit is shorted
to 12 V.
Steer Right
function will
not operate.
* With a voltmeter, measure Y4. Proper
resistance should be between 5 - 60
ohms. Replace Y4 if resistance is outside
of those values.
* Verify wiring for C36STR (BL, TCON
J4-12) and check for open or short circuits.
15 Circuit
shorted to
GND
TCON detected
that C36STR
circuit is shorted
to GND.
169 Primary
Boom
Extend /
Retract Flow
Valve
12 Circuit
shorted to
V+
TCON detected
that C9PEF circuit
is shorted to 12 V.
Boom
Extend and
Retract
functions will
not operate.
* With a voltmeter, measure Y15. Proper
resistance should be between 5 - 60
ohms. Replace Y15 if resistance is
outside of those values.
* Verify wiring for C9PEF (BK/RD, TCON
J4-5) and check for open or short circuits.
* Verify resistance between Recovery
Module pins J37-6 and J37-7 is zero
ohms.
15 Circuit
shorted to
GND
TCON detected
that C9PEF circuit
is shorted to
GND.
174 Platform
Rotate
Toggle
Switch
19 Stuck ON at
power up.
Toggle switch
input was
detected as HIGH
at start-up.
Platform
Rotate Left
or Right will
not operate,
depending
on which
side of the
switch was
faulted.
Verify with a voltmeter that the Platform
Rotate Toggle Switch (TS7) is operating
properly.
* C17PRL (GR, PCON J16-4) and
C18PRR (GR/BK, PCON J17-5) should be
12 V when the switch is pressed in their
respective directions.
Cycle power to allow the machine to
re-test the fault.
177 Engine
Coolant
Temperature
12 Value too
high
The engine
coolant
temperature is
measured as too
high, potentially
damaging the
engine.
Engine will
not restart
until machine
power is
cycled.
Engine may
stop itself,
depending
on the
engine
option.
* Stop engine as soon as possible.
* Verify the engine coolant level.
* Verify the engine coolant/water pump.
* Power on the machine and start the
engine. At the ground controls display,
view the engine temperature gauge for
proper operation.
* If engine uses an analog temperature
sensor, verify it is sending an analog
voltage on C26TSR (WH/RD, TCON
J6-10).
Summary of Contents for Genie S-80 HF Series
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