Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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EOBD trouble code table J Trouble I code I Probable cause PO144 ( Heated oxywn sensor (HO2S) 3, bank 1 -hi& voltaw I Wiring short to positive, H02S, ECM PO145 PO146 PO1 47 PO1 48 PO149 PO1 50 PO151 PO152 PO153 PO154 PO155 PO156 Oxygen sensor (02s) 3, bank 1 - high voltage Heated oxygen sensor (H02S) 3, bank 1 -slow response Oxygan sensor (02s) 3, bank 1 - slow response Heated oxygen sensor (H02S) 3, bank 1 - no activity detected Oxygen sensor (025) 3, bank 1 - no activity detected Heated oxygen sensor (H02S) 3, bank 1, heater control - circuit malfunction I Oxygen sensor (02s) 1, bank 2 - high voltage I Wiring short to positive, 02S, ECM Heating inoperative, wiring, H02S Wiring, 02s Wiring, H02S, ECM Wiring, 02S, ECM Wiring, H02S, ECM Fuel delivery error Fuel pumplfuel injection pump Fuel timing error Fuel pumplfuel injection pump Heated oxygen sensor (H02S) 1, bank 2 - circuit Wiring, H02S, ECM malunction Oxygen sensor (02s) 1, bank 2 - circuit malfunction Wiring, 02S, ECM Heated oxygen sensor (H02S) 1, bank 2 - low voltage Exhaust leak, wiring short to earth, H02S, ECM Oxygen sensor (02s) 1, bank 2 - low voltage Exhaust leak, wiring short to earth, 02S, ECM Heated oxygen sensor (H02S) 1, bank 2 - high voltage Wiring short to positive, H02S, ECM I Wiring short to positive, 02S, ECM Heated oxygen sensor (H02S) 1, bank 2 - slow response Heating inoperative, wiring, H02S Oxygen sensor (02s) 1, bank 2 - slow response Wiring, 02s I Heated oxygen sensor (H02S) 1, bank 2 - no activity Wiring, H02S, ECM detected I Oxygen sensor (02s) 1, bank 2 - no activity detected I Wiring, 02S, ECM Heated oxygen sensor (H02S) 1, bank 2, heater control - Wiring, H02S, ECM circuit malfunction I Heated oxygen sensor (H02S) 2, bank 2 - Heating inoperative, wiring, H02S, ECM circuit malfunction Oxygen sensor (02s) 2, bank 2 -circuit malfunction I Wiring, 02S, ECM Heated oxygen sensor (H02S) 2, bank 2 - low voltage Exhaust leak, wiring short to earth, H02S, ECM Oxygen sensor (025) 2, bank 2 - low voltage Exhaust leak, wiring short to earth, 02S, ECM Heated oxygen sensor (hQ2S) 2, bank 2 - high voftage Wiring short to positive, H02S, ECM Oxygen sensor (02s) 2, bank 2 - high voltage Wiring short to positive, 02S, ECM Heated oxygen sensor (H02S) 2, bank 2 -slow response Heating inoperative, wiring, H02S Oxygen sensor (02s) 2, bank 2 - slow response Wiring, 02s Heated oxygen sensor (H02S) 2, bank 2 - no activity Wiring, H02S, ECM detected Oxygen sensor (02s) 2, bank 2 - no activity detected Wiring, 02S, ECM I

1 :;:Ie Fautt Iocatiom PO161 Heated oxygen sensor (H02S) 2, bank 2, heater control - circuit malfunction PO162 Heated oxygen sensor (H02S) 3, bank 2 - circuit malfunction PO163 Oxygen sensor (02s) 3, bank 2 - circuit malfunction Heated oxygen sensor (H02S) 3, bank 2 - low voltage Oxygen sensor (02s) 3, bank 2 - low voltage EOBD trouble code table I Probable cause Wiring, H02S, ECM Wiring, H02S, ECM Wiring, 02S, ECM Exhaust leak, wiring short to earth, H02S, ECM Exhaust leak, wiring short to earth, 02S, ECM PO164 I Heated oxygen sensor (H02S) 3, bank 2 - high voltage Wiring short to positive, H02S, ECM PO165 Oxygen sensor (02s) 3, bank 2 - high voltage Heated oxygen sensor (H02S) 3, bank 2 - slow response Oxygen sensor (02s) 3, bank 2 - slow response PO166 Heated oxygen sensor (H02S) 3, bank 2 - no activity detected Oxygen sensor (02s) 3, bank 2 - no activity detected PO167 Heated oxygen sensor (H02S) 3, bank 2, heater control - circuit malfunction PO168 PO1 69 PO170 I Fuel temperature too high Incorrect fuel composition Fuel trim (FT), bank 1 - malfunction PO171 System too lean, bank 1 I PO172 System too rich, bank 1 PO173 I Fuel trim (FT), bank 2 - malfunction System too lean, bank 2 PO175 I System too rich, bank 2 PO176 PO177 PO178 PO179 PO180 PO181 PO182 PO183 PO184 PO185 PO186 PO187 PO188 PO190 PO191 I Fuel composition sensor - circuit malfunction I Fuel composition sensor - rangelperformance problem Fuel composition sensor - low input Fuel composition sensor - high input Fuel temperature sensor A - circuit malfunction Fuel temperature sensor A - rangelperformance problem Fuel temperature sensor A - low input Fuel temperature sensor A - high input Fuel temperature sensor A - circuit intermittent Fuel temperature sensor B - circuit malfunction Fuel temperature sensor B - rangelperformance problem Fuel temperature sensor B - low input Fuel temperature sensor B - high input Fuel temperature sensor B - circuit intermittent I Fuel rail pressure (FRP) sensor - circuit malfunction Fuel rail pressure (FRP) sensor - rangelperformance problem Wiring short to positive, 02S, ECM Heating inoperative, wiring, H02S Wiring, 02s Wiring, H02S, ECM Wiring, 02S, ECM Wiring, H02S, ECM Wiring, fuel temperature sensor, mechanical fault Wiring, fuel composition sensor, mechanical fault lntake leak, AIR system, fuel pressurelpump, iniectorlsl. . ,, EVAP canister . Durae - valve. H02S Intakelexhaust leak. AIR svstem. MAFNAF sensor. fuel pressure/pum~, injectbr(s), H O~S lntake blocked, EVAP canister purge valve, fuel pressure, EGR system, injector(s), H02S lntake leak, AIR system, fuel pressurelpump, iniector(s), EVAP canister purge valve, H02S Intakelexhaust leak, fuel pressurelpump, injector(s), AIR svstem, hose connection(s~ lntake blocked, EVAP canister purge valve, fuel Dressure. EGR svstem, iniectortsl. H02S . . , .. Wiring, fuel composition sensor, ECM Fuel composition sensor Wiring short to earth, fuel composition sensor, ECM Wiring short topositive, fuel composition sensor, ECM Wiring, fuel temperature sensor, ECM Fuel temperature sensor Wiring short to earth, fuel temperature sensor, ECM Wiring short to positive, fuel temperature sensor, ECM wiring, poor connection: fuel temperature sensor, ECM Wiring, fuel temperature sensor, ECM Fuel temperature sensor Wiring short to earth, fuel temperature sensor, ECM Wiring short to positive, fuel temperature sensor, ECM Wiring, poor connection, fuel temperature sensor, ECM Wiring, fuel rail pressure sensor, ECM Wiring, FRP sensor [Autodata EOBD trouble code table 1 65 1

EOBD trouble code table<br />

J<br />

<strong>Trouble</strong> I<br />

code<br />

I Probable cause<br />

PO144 ( Heated oxywn sensor (HO2S) 3, bank 1 -hi& voltaw I Wiring short to positive, H02S, ECM<br />

PO145<br />

PO146<br />

PO1 47<br />

PO1 48<br />

PO149<br />

PO1 50<br />

PO151<br />

PO152<br />

PO153<br />

PO154<br />

PO155<br />

PO156<br />

Oxygen sensor (02s) 3, bank 1 - high voltage<br />

Heated oxygen sensor (H02S) 3, bank 1 -slow response<br />

Oxygan sensor (02s) 3, bank 1 - slow response<br />

Heated oxygen sensor (H02S) 3, bank 1 - no activity<br />

detected<br />

Oxygen sensor (025) 3, bank 1 - no activity detected<br />

Heated oxygen sensor (H02S) 3, bank 1, heater control -<br />

circuit malfunction<br />

I Oxygen sensor (02s) 1, bank 2 - high voltage<br />

I<br />

Wiring short to positive, 02S, ECM<br />

Heating inoperative, wiring, H02S<br />

Wiring, 02s<br />

Wiring, H02S, ECM<br />

Wiring, 02S, ECM<br />

Wiring, H02S, ECM<br />

Fuel delivery error<br />

Fuel pumplfuel injection pump<br />

Fuel timing error<br />

Fuel pumplfuel injection pump<br />

Heated oxygen sensor (H02S) 1, bank 2 - circuit Wiring, H02S, ECM<br />

malunction<br />

Oxygen sensor (02s) 1, bank 2 - circuit malfunction Wiring, 02S, ECM<br />

Heated oxygen sensor (H02S) 1, bank 2 - low voltage Exhaust leak, wiring short to earth, H02S, ECM<br />

Oxygen sensor (02s) 1, bank 2 - low voltage<br />

Exhaust leak, wiring short to earth, 02S, ECM<br />

Heated oxygen sensor (H02S) 1, bank 2 - high voltage Wiring short to positive, H02S, ECM<br />

I Wiring short to positive, 02S, ECM<br />

Heated oxygen sensor (H02S) 1, bank 2 - slow response Heating inoperative, wiring, H02S<br />

Oxygen sensor (02s) 1, bank 2 - slow response Wiring, 02s<br />

I<br />

Heated oxygen sensor (H02S) 1, bank 2 - no activity Wiring, H02S, ECM<br />

detected<br />

I Oxygen sensor (02s) 1, bank 2 - no activity detected I Wiring, 02S, ECM<br />

Heated oxygen sensor (H02S) 1, bank 2, heater control - Wiring, H02S, ECM<br />

circuit malfunction<br />

I<br />

Heated oxygen sensor (H02S) 2, bank 2 -<br />

Heating inoperative, wiring, H02S, ECM<br />

circuit malfunction<br />

Oxygen sensor (02s) 2, bank 2 -circuit malfunction<br />

I Wiring, 02S, ECM<br />

Heated oxygen sensor (H02S) 2, bank 2 - low voltage Exhaust leak, wiring short to earth, H02S, ECM<br />

Oxygen sensor (025) 2, bank 2 - low voltage<br />

Exhaust leak, wiring short to earth, 02S, ECM<br />

Heated oxygen sensor (hQ2S) 2, bank 2 - high voftage Wiring short to positive, H02S, ECM<br />

Oxygen sensor (02s) 2, bank 2 - high voltage<br />

Wiring short to positive, 02S, ECM<br />

Heated oxygen sensor (H02S) 2, bank 2 -slow response Heating inoperative, wiring, H02S<br />

Oxygen sensor (02s) 2, bank 2 - slow response Wiring, 02s<br />

Heated oxygen sensor (H02S) 2, bank 2 - no activity Wiring, H02S, ECM<br />

detected<br />

Oxygen sensor (02s) 2, bank 2 - no activity detected Wiring, 02S, ECM<br />

I

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