Arctic Cat 2016 Alterra 500 Service Manual page 136

Fuel Sensor (FUEL)
WT545
Display: Fuel level signal from the fuel level sensor.
DTC: C1400, C1401, C1402
Usage: Check output of the fuel level sensor.*
1. Full fuel is indicated by a reading of 0-5 ohms.
2. Empty is indicated by a reading of 95-105 ohms.
* 110-500 ohms, suspect the fuel level sensor or wiring. 0-100 ohms but
no gauge indication, suspect the gauge.
Tachometer (RPM)
WT544
Display: Engine RPM
DTC: P0336, P0337, P0339
Usage: Verify engine speed signal from the following.
1. CKP (crankshaft position) sensor to ECM
2. ECM (CAN) signal to gauge (tachometer)
Code Fault Description
C0063 Tilt Sensor Circuit High
C0064 Tilt Sensor Circuit Low/SG/Open
P0030 O2 Heater Intermittent/Open
P0031 O2 Heater Low/SG
P0032 O2 Heater High/SP
P0107 MAP Sensor Circuit Low/SG/Open
P0108 MAP Sensor Circuit High/SP
P0112 IAT Sensor Circuit Low/SG
P0113 IAT Sensor Circuit High/Open
P0114 IAT Sensor Circuit Intermittent
P0116 ECT Sensor Circuit Range/Performance
3. ECM (CAN) signal to EPS
Speedometer (SPEED)
WT543
Display: Vehicle speed signal.
DTC: P0500
Usage: Verify speedometer sensor signal from the fol-
lowing.
1. Speed sensor to ECM.
2. ECM (CAN) signal to gauge (speedometer/odome-
ter).
3. ECM (CAN) signal to EPS
DIAGNOSTIC TROUBLE CODES (DTC)
If an EFI or related chassis component fails or an
out-of-tolerance signal is detected by the ECM, a diag-
nostic trouble code (DTC) will be generated in the ECM
and displayed on the LCD. The DTC will be displayed
alternately with a wrench icon or malfunction indicator
light (MIL). The DTC will continue to flash until the
malfunction is corrected and the code cleared.
Code List

NOTE: Each of the following numerical codes will
have a one-letter prefix of C, P, or U. A "C" prefix
denotes a chassis malfunction, a "P" prefix denotes a
power train malfunction, and a "U" prefix denotes a
CAN communication related code.

NOTE: Normal malfunction codes are cleared from
the LCD when the component is replaced or the mal-
function is corrected; however, intermittent codes
must be cleared as noted in the code chart.
Possible Cause
Sensor or interconnect harness shorted to battery power
Sensor or interconnect harness open or shorted to chassis ground Correct condition*
Heater or interconnect harness intermittent or open
Heater or interconnect harness shorted to chassis ground
Heater or interconnect harness shorted to battery power
Sensor or interconnect harness shorted to chassis ground
Sensor or interconnect harness shorted to battery power
Sensor or interconnect harness shorted to chassis ground
Sensor or interconnect harness open or shorted to battery power
Sensor or interconnect harness intermittent
Sensor producing an out-of-range voltage
Fault Recovery Method
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
Correct condition*
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