Arctic Cat 1000 XT 2014 Service Manual page 106

Code Fault Description
C1315 Engine RPM Faulty
C1316 EEPROM Error
C1317 CAN Bus Error
C1318 Internal CRC Error
C1319 Boot Counter Exceeded EPS internal application code condi-
C1320 Incorrect Vehicle
Speed-to-RPM Ratio
C1321 Vehicle Speed Erratic
C1322 Engine RPM Lost
C1323 "EPS OFF" Gauge Dis-
play
C1324 Loss of CAN communica-
tion with EPS unit
C1325 Dual Loss
C1326 Rotor Position Encoder
C1327 Voltage Converter Error
(Low)
C1328 Voltage Converter Error
(High)
C1329 Internal Data Error
All conditions with the exception of item 5 are external
to the EPS assembly and therefore can be cleared without
replacement of the EPS assembly. Make sure to thor-
oughly troubleshoot the entire system before replacing
the EPS assembly.
Malfunction code P0635 will appear if one of the follow-
ing six conditions occur:
1. Battery system power failure:
A. 30 amp EPS fuse blown
B. EPS relay failure
C. EPS voltage less than 8.5 DC volts for more than
two seconds
2. Ignition switch ON for more than five minutes with
the engine not running.
3. Vehicle Speed Signal Malfunction (engine speed
must exceed 2700 RPM for more than 60 seconds to
generate a malfunction code - timer resets if engine
drops below 2700 RPM).
A. Diode defective (open or shorted)
B. Diode not installed
C. Diode installed in reverse
D. Speed sensor defective
104
Fault Condition
Engine RPM CAN signal received by
the EPS incorrect or missing
EPS internal memory error has been
detected
The EPS has lost CAN communica-
tion with the EFI ECM
EPS internal CRC calculation condi-
tion has been detected
tion has been detected
Vehicle speed signal received by the
EPS exceeds 10 MPH, but the engine
RPM signal less than 500 RPM
Vehicle speed signal received by the
EPS changing at an unrealistic rate
Engine RPM signal received by the
EPS exceeds 500 RPM and then is
zero or missing
Battery power has been applied to the
EPS for more than 5-minutes, but no
engine RPM signal has been
detected
The gauge has lost CAN communica-
tion with the EPS
EPS loss of both the vehicle speed
and the engine RPM signals has been
detected
EPS internal rotor position encoder
variance condition has been detected
EPS internal voltage converter
low-voltage condition has been
detected
EPS internal voltage converter
over-voltage condition has been
detected
EPS internal preloaded data condition
has been detected
Possible Cause
Broken main harness CAN wires or
defective ECM.
Internal EPS condition
Broken CAN wires in the main harness.
EFI ECM connector has been discon-
nected.
EPS reflash has failed. Battery power
was lost, or the keyswitch was turned off,
during EPS reflash programming.
Intermittent power has prevented a suc-
cessful application code launch.
Intermittent or broken main harness RPM
wires, intermittent voltage regulator, inter-
mittent or broken ACG stator wires.
Intermittent main harness, intermittent
speed sensor, dirty speed senor or trigger
wheel.
Handlebar switch in the "OFF" position,
broken main harness RPM wires, defect
voltage regulator, broken ACG stator
wires.
The EPS has been automatically dis-
abled, after 5-minutes of inactivity, to con-
serve battery power.
Broken CAN wires in the main harness or
disconnected EPS. This is not an EPS
generated DTC; gauge DTC display only.
Handlebar switch in the "OFF" position,
the engine stalled (keyswitch "ON"), bro-
ken harness wires, loss of CAN data sig-
nal.
Internal EPS Condition
Internal EPS Condition
Internal EPS Condition
Internal EPS Condition
E. Speed sensor signal erratic
F. Speed sensor signal present but without tachome-
ter signal
G. Speed sensor power from LCD gauge interrupted
H. Incorrect LCD gauge installed
4. Engine Speed Signal Malfunction (vehicle speed must
exceed 5 MPH for more than two seconds - timer
resets if speed drops below 5 MPH.
A. No engine speed signal
B. Erratic engine speed signal
5. EPS Control Circuit Malfunction
6. Engine Stop Switch in Stop position with Ignition
Key switch ON.
The following procedures may be helpful in determining
the source of a malfunction code:
Condition: Ignition Key Switch ON and NO EPS assist
when moving the handlebar. Code "P0635" flashing.
EPS Fault Recovery Method
EPS will auto-recover when engine
RPM signal returns to normal
Correct EPS condition*
Correct EPS condition*
EPS must be reprogrammed
Correct EPS power condition*
Correct EPS condition*
Correct EPS vehicle speed signal
condition*
EPS will auto-recover when engine
RPM signal returns to normal
EPS will auto-recover when engine
is started or the keyswitch is cycled
On-Off-On
Gauge DTC display will clear when
the EPS-to-gauge CAN communica-
tion is restored.
EPS will auto-recover when either
the vehicle speed or engine RPM
signal is restored.
Correct EPS condition*
Correct EPS condition*
Correct EPS condition*
EPS must be reprogrammed