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96
DTC 51 ETC TPS 1 Range
Step
Action
Value(s)
Yes
No
1
Did you perform the On-board diagnostics
(OBD) system check?
NOTE: If the 5 volt reference Supply 1 is shorted
to ground, various codes may set, including
Throttle, Pedal 1, Oil Pressure, Cam and 5 Volt
Power Supply Codes. If multiple codes are set,
refer to diagnostics for codes 524261 to verify 5
volt reference.
Go to Step
(2)
Go to On-
Board Diag-
nostics
System
Check/Malfun
ction indicator
lamp.
2
With the monitor connected, Key ON, read
both throttle position sensors 1 and 2 voltag-
es.
Is either reading below 0.2 volts
Is the TPS 1 voltage above 9.95 volts or is
TPS 2 voltage above 4.99
Is the higher voltage minus the lower voltage di-
vided by 5 then multiplied by 100 greater than 6.
NOTE: this is the formula the ECU uses to de-
termine if the TPS readings are within the
specifications
TPS 1
<0.2V
TPS 2
>4.99V
Go to Step
(3)
Intermittent
problem. Go
to Preliminary
and Intermit-
tent Checks
3
Key OFF, disconnect C017 from the throttle
body.
Key ON, measure the voltage from C017 pin
6 to pin 2
Is the voltage between 4.8 and 5.2 volts?
Between
4.8-5.2V
Go to Step
(5)
Go to Step (4)
4
Key OFF, disconnect ECU-B
Measure the resistance from C017 pin 2 to
ECU B pin G2
Measure the resistance from C017 pin 6 to
ECU B pin G4
Is the resistance less than 5
Ω
?
NOTE: Do not probe wires without proper ser-
vice tool. Permanent harness damage may
result
.
Verify that
there are no
codes for the
5 volt supply
before pro-
ceeding.
Replace the
ECU. Go to
Step (9)
Repair the
circuit as ne-
cessary. Refer
to Wire Har-
ness Repair.
Go to Step (9)
Содержание 3.0L GM
Страница 4: ...4 ...
Страница 5: ...5 General Information ...
Страница 9: ...9 Maintenance ...
Страница 16: ...16 ...
Страница 17: ...17 LPG Fuel System ...
Страница 18: ...18 LPG FUEL SYSTEM OPERATION ...
Страница 25: ...25 LPG Closed Loop Schematic ...
Страница 26: ...26 ...
Страница 27: ...27 LPG System Diagnosis ...
Страница 35: ...35 Fuel Symptom Diagnostics ...
Страница 51: ...51 Electrical Section ...
Страница 52: ...52 ...
Страница 53: ...53 DST Diagnostic Scan Tool ...
Страница 59: ...59 Select the USB button then click the OK box Click on the Search attached device box ...
Страница 67: ...67 When connected the live data stream appears in the Value column ...
Страница 78: ...78 ...
Страница 80: ...80 ...
Страница 81: ...81 Engine Wire Schematic ...
Страница 82: ...82 2011 3 0L GM Engine IMPCO Emission Certified LPG Fuel System ...
Страница 83: ...83 ...
Страница 84: ...84 ...
Страница 85: ...85 Engine Wire Harness Repair ...
Страница 89: ...89 Diagnostic Trouble Codes DTCs ...
Страница 93: ...93 ...
Страница 101: ...101 ...
Страница 105: ...105 ...
Страница 109: ...109 ...
Страница 119: ...119 ...
Страница 129: ...129 ...
Страница 133: ...133 ...
Страница 137: ...137 ...
Страница 141: ...141 ...
Страница 145: ...145 ...
Страница 161: ...161 ...
Страница 165: ...165 ...
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Страница 217: ...217 ...
Страница 221: ...221 ...
Страница 225: ...225 ...
Страница 229: ...229 ...
Страница 237: ...237 Servicing the Fuel System ...
Страница 254: ...254 ...
Страница 255: ...255 LPG Parts Diagram ...
Страница 256: ...256 THROTTLE BODY ASSEMBLY ...
Страница 258: ...258 FUEL RAIL INJECTORS ...
Страница 260: ...260 REGULATOR ASSEMBLY ...
Страница 262: ...262 HOSE ASSEMBLIES COOLANT VACUUM FUEL ...
Страница 264: ...264 THERMOSTAT HOUSING ...
Страница 266: ...266 ENGINE CONTROL MODULE ...
Страница 267: ...267 ENGINE CONTROL MODULE Item Description Qty IMPCO Part Number 1 ECM Liugong 1 A11 173 ...
Страница 268: ...268 SENSORS 4 1 3 6 5 2 7 ...
Страница 270: ...270 DISTRIBUTOR ...
Страница 272: ...272 FUSE BOX BRACKET ...
Страница 274: ...274 IGNITION COIL ...
Страница 275: ...275 IGNITION COIL Item Description Qty Part Number 1 Coil Ignition 1 7245530 ...
Страница 276: ...276 MANIFOLDS ...
Страница 278: ...278 WIRE HARNESS FUSES FUSE BOX COVER Fuse Box Layout 4 ...
Страница 280: ...280 PCV VENT VALVE ...
Страница 282: ...282 MISCELLANEOUS ENGINE ...
Страница 284: ...284 ALTERNATOR ...
Страница 286: ...286 STARTER ...
Страница 291: ...291 ...
Страница 292: ...292 3 0L UPPER ...
Страница 294: ...294 3 0L LOWER ...
Страница 298: ...298 ...
Страница 299: ...299 Labor Time Guide ...
Страница 317: ...317 Definitions ...
Страница 322: ...322 ...
Страница 323: ...323 Appendix ...
Страница 327: ...327 DTC SPN FMI Chart ...