5-15
5
ATV-112
4. Turn the ignition switch to the ON position and
read the error code on the LCD. Refer to the fol-
lowing ECU Error Code List to identify the spe-
cific problem area.
ECU Error Code List
NOTE: Each of the following numerical codes will
have a two-letter prefix. A prefix of AC (Active
Code) or SC (Stored Code) will be displayed.
Always correct and clear Active Codes before
clearing Stored Codes.
• 00 = No Fault Detected (active code only)
• 12 = CKP (Crankshaft Position) Sensor*
• 13 = MAP (Manifold Absolute Pressure) Sensor
• 14 = TPS (Throttle Position Sensor)
• 15 = ECT (Engine Coolant Temperature) Sensor
• 16 = Speed Sensor
• 21 = IAT (Inlet Air Temperature) Sensor
• 23 = Tilt Sensor*
• 24 = Ignition Coil #1*
• 32 = Fuel Injector #1*
• 40 = ISC (Idle Speed Control) Valve
• 41 = Fuel Pump Relay*
• 60 = Cooling Fan Relay
• 95 = Sensor Power
• 96 = Incorrect ECU*
• 97 = ECU Memory Power (constant battery
power)
• 99 = Start/Run Not Possible (active code only)
*Will initiate code 99.
To clear the error code(s), use the following procedure.
NOTE: The ignition switch should be in the OFF
position.
1. With the diagnostic harness connected to the diag-
nostic plug and the drive select switch in the 4WD
position, hold the reverse override switch down
and turn the ignition switch to the ON position.
2. After ten seconds, release the reverse override
switch and turn the ignition switch to the OFF
position; then turn the ignition switch to the ON
position. The display should read EC00 (no fault
detected).
NOTE: If the LCD still displays an error code,
continue troubleshooting the appropriate compo-
nent.
3. Disconnect the diagnostic harness; then install the
black rubber cap.
4. Install the seats making sure they lock securely in
place.
Tilt Sensor
(XTX)
SUPPLY VOLTAGE
1. Disconnect the three-wire connector from the sen-
sor; then select DC Voltage on the multimeter and
connect the red tester lead to the orange wire (C)
and the black tester lead to the black wire (A).
CD706A
2. Turn the ignition switch to the ON position. The
multimeter should read battery voltage. If battery
voltage is not indicated, check the 30-amp fuse,
wiring harness, or the ignition switch.
3. Remove the red tester lead and connect to the
blue/brown wire (B). The multimeter should read
0 DC volts. If the specified voltage is not indi-
cated, check wire connections at the ECU or sub-
stitute another ECU to verify the test.
! WARNING
Incorrect installation of the tilt sensor could cause
sudden loss of engine power which could result in
loss of vehicle control resulting in injury or death.
! CAUTION
Do not drop the tilt sensor as shock can damage the
internal mechanism.
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