2.18
DTC P0117 (14), P0118 (14)
GENERAL
Engine Temperature (ET) Sensor
NOTE
Do not pull on ET sensor wiring. Excess strain to sensor wiring
will cause sensor damage.
.The Electronic Control Module (ECM) supplies
and monitors a 0-5 volt signal to one side of the ET sensor.
The other side of the ET sensor is connected to ground through
the engine.
Refer to
. The ET sensor is a thermistor device which
means that at a specific temperature, it will have a specific
resistance across its terminals. As this resistance varies, so
does the voltage sent to the temperature sensor input on the
ECM.
•
At high temperatures, the resistance of the sensor is very
low. This effectively lowers the signal voltage.
•
At low temperatures, the resistance is very high, allowing
the voltage to rise close to the supplied voltage of 5 volts.
The ECM monitors this voltage to compensate for various
operating conditions.
Table 2-30. Code Description
DESCRIPTION
CHECK
ENGINE
LAMP CODE
DTC
Engine sensor voltage low
14
P0117
Engine voltage high/open
14
P0118
ed01473
Figure 2-47. Location of Engine Temperature Sensor in
Rear Cylinder Head
Table 2-31. Engine Temperature Sensor Specifications
TEMP °F
TEMP °C
RESISTANCE
VOLTS
572
300
0
0.00
491
255
145
0.21
410
210
303
0.42
374
190
463
0.62
338
170
638
0.81
302
150
1042
1.20
266
130
1539
1.59
185
85
4991
3.01
104
40
25,647
4.43
77
25
41,295
4.63
50
10
93,759
4.83
32
0
134,200
4.88
14
-10
232,414
4.93
NOTE
All voltage and resistance values are approximate (±20%).
DIAGNOSTICS
TOOL NAME
PART NUMBER
BREAKOUT BOX
B-48115
HARNESS CONNECTOR TEST KIT
HD-41404-B
Diagnostic Tips
An intermittent may be caused by a poor connection, rubbed
through wire insulation or a wire broken inside the insulation.
Check for the following conditions:
•
Poor Connection: Inspect ECM harness connector [11]
for backed out terminals, improper mating, broken locks
improperly formed or damaged terminals, poor terminal-
to-wire connection and damaged harness.
•
Shifted Sensor: The temperature-to-resistance values
table may be used to test the ET sensor at various temper-
ature levels in order to evaluate the possibility of a shifted
(out-of-calibration) sensor which may result in driveability
problems.
Diagnostic Notes
Each reference number below correlates to a circled number
on the flow chart(s).
1.
Connect BREAKOUT BOX (Part No. B-48115) to ECM.
See
.
2.
Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404-B), purple socket probes and patch cord.
2-58 2008 Buell XB Diagnostics: Engine Management
Содержание 2008 XB SERIES
Страница 1: ...2008 Buell XB Models Electrical Diagnostics Manual 99493 08Y 2007 Buell Motorcycle Company ...
Страница 4: ...Blank Text Here ...
Страница 6: ...NOTES ...
Страница 14: ...NOTES ...
Страница 50: ...NOTES ...
Страница 72: ...ed01568 Figure 2 16 Checking for Leaks 2 22 2008 Buell XB Diagnostics Engine Management ...
Страница 128: ...ed01338 Figure 2 61 Speedometer Tester Part No HD 41354 2 78 2008 Buell XB Diagnostics Engine Management ...
Страница 202: ...NOTES ...
Страница 224: ...A 22 2008 Buell XB Diagnostics Appendix A Connector Repair NOTES ...
Страница 225: ...SUBJECT PAGE NO B 1 CONNECTORS B 1 B 2 WIRING DIAGRAMS B 3 APPENDIX B WIRING DIAGRAMS ...
Страница 226: ...NOTES ...
Страница 232: ...Figure B 2 Figure B 2 Main Harness Ulysses and Lightning Main Harness Ulysses and Lightning ...
Страница 234: ...Figure B 3 Figure B 3 Main Harness Firebolt Main Harness Firebolt ...
Страница 236: ...Figure B 4 Figure B 4 Engine Management Circuit All Models Engine Management Circuit All Models ...
Страница 238: ...Figure B 5 Figure B 5 Lighting Circuit Ulysses and Lightning Lighting Circuit Ulysses and Lightning ...
Страница 240: ...Figure B 6 Figure B 6 Lighting Circuit Firebolt Lighting Circuit Firebolt ...
Страница 242: ...Figure B 7 Figure B 7 Component Circuits All Models Component Circuits All Models ...
Страница 244: ...Figure B 8 Figure B 8 Horn and Instruments Circuit All Models Horn and Instruments Circuit All Models ...
Страница 246: ...Figure B 9 Figure B 9 Starting Circuit Ulysses and Lightning Starting Circuit Ulysses and Lightning ...
Страница 248: ...Figure B 10 Figure B 10 Starting Circuit Firebolt Starting Circuit Firebolt ...
Страница 250: ...Figure B 11 Figure B 11 Charging Circuits All Models Charging Circuits All Models ...
Страница 252: ...Figure B 12 Figure B 12 Heated Handlebar Grips Ulysses only Heated Handlebar Grips Ulysses only ...
Страница 266: ...B 40 2008 Buell XB Diagnostics Appendix B Wiring Diagrams NOTES ...
Страница 267: ...SUBJECT PAGE NO C 1 METRIC CONVERSION C 1 C 2 FLUID CONVERSIONS C 2 C 3 TORQUE CONVERSIONS C 3 APPENDIX C CONVERSIONS ...
Страница 268: ...NOTES ...
Страница 272: ...C 4 2008 Buell XB Diagnostics Appendix C Conversions NOTES ...
Страница 273: ...SUBJECT PAGE NO D 1 GLOSSARY D 1 APPENDIX D GLOSSARY ...
Страница 274: ...NOTES ...
Страница 278: ...D 4 2008 Buell XB Diagnostics Appendix D Glossary NOTES ...
Страница 282: ...IV TOOLS NOTES ...
Страница 284: ...VI TORQUE VALUES NOTES ...
Страница 287: ...INSIDE BACK COVER GOES HERE ...
Страница 288: ...OUTSIDE BACK COVER GOES HERE ...