FI SYSTEM DIAGNOSIS 5-43
Step 2
1) Turn the ignition switch to OFF.
2) Disconnect the ECT sensor coupler.
3) Measure the ECT sensor resistance.
&
ECT sensor resistance:
Approx. 2.45 k
Ω
at 20 °C (68 °F)
(Terminal – Terminal)
%
09900-25008: Multi-circuit tester set
2
Tester knob indication: Resistance (
Ω
)
Refer to page 7-11 for details.
Is the resistance OK?
#
&
ECT sensor specification
4) After repairing the trouble, clear the DTC using SDS tool.
(
$
5-23)
2
YES
• B/Bl or B/O wire open or shorted to ground, or
poor
A
or
J
connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO
Replace the ECT sensor with a new one.
When us ing the m ulti-circuit te ster, do no t s trongly
touch the terminal of the ECM coupler with a needle
pointed tester probe t o pr event t he terminal damage
or terminal bend.
Engine Coolant Temp
Resistance
20 °C (68 °F)
Approx. 2.45 k
Ω
40 °C (104 °F)
Approx. 1.15 k
Ω
80 °C (176 °F)
Approx. 0.31 k
Ω
100 °C (182 °F)
Approx. 0.18 k
Ω
ECM coupler (wiring harness side)
Summary of Contents for LT-A450X
Page 2: ...SUPPLEMENTS LT A450XK9 09 MODEL LT A450XK8 12 13 WIRING DIAGRAM 14 ...
Page 47: ...PERIODIC MAINTENANCE 2 29 ...
Page 48: ...2 30 PERIODIC MAINTENANCE ...
Page 63: ...ENGINE 3 7 Remove the engine mounting nuts Remove the engine from the right side ...
Page 215: ......
Page 315: ...7 24 COOLING AND LUBRICATION SYSTEM ENGINE LUBRICATION SYSTEM To cylinder head OIL PUMP ...
Page 316: ...COOLING AND LUBRICATION SYSTEM 7 25 EXHAUST SIDE INTAKE SIDE ...
Page 317: ......
Page 332: ...8 14 CHASSIS REAR CARRIER Remove the rear carrier REAR BOX Remove the rear box 1 ...
Page 417: ......
Page 452: ...9 34 ELECTRICAL SYSTEM HEADLIGHT INSTALLATION Head light coupler Head light R Adjusting point ...
Page 484: ...10 26 SERVICING INFORMATION Rear box Rear fender Right mud guard Left mud guard ...
Page 510: ......
Page 514: ......