Case CX Series - Page 265

CX210/CX240 ELECTRONIC FUEL SYSTEM
8 - 20
CX EXCAVATORS
FAULT CODE LISTING
Fault Associated Hardware Reason Effect
(only with active code)
F151 Coolant temp. sensor/
EPF
Coolant temp. has
exceeded maximum
protection limits
Power de-rate, possible
engine shut-down
F153 Intake air temp. sensor
high
High voltage at pin 34 of
engine harness.
Default value used. No
engine protection for
intake temp.
F154 Intake air temp. sensor
low
Low voltage at pin 34 of
engine harness.
Default value used. No
engine protection for
intake temp.
F155 Intake air temp.
sensor/EPF
Intake air temp. has
exceeded maximum
protection limits
Speed de-rate and
possible engine shut-
down.
F234 Crankshaft position
sensor
Engine speed signal
indicates over speed.
Fuel to injectors is
stopped until speed drops
below over speed limit.
F235 Coolant level sensor/
EPF
Coolant level signal
indicates low level at pin 37
of Engine harness.
Power de-rate and
possible engine shut-
down.
F261 Fuel temp. sensor
indicates over heating of
fuel.
FPCM indicates fuel temp.
has exceeded limits.
Power de-rate.
F264 Fuel temp. sensor High or low voltage at
temp. sensor in injection
pump.
Default value used for
temp. Possible low
power.
F278 Lift pump relay Error in lift pump circuit at
pin 11 of engine harness.
Possible low power,
engine may die, run
rough or be hard to start
F283 ESS crankshaft position
sensor high.
High voltage at pin 8 of
engine harness.
ECM will use injection
pump speed as back up.
Possible white smoke
and power loss.