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

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Engine management/transmission h7 L ~ + ~<br />

Flash type 1 <strong>Fault</strong> location I Probable cause<br />

81<br />

82<br />

83 Exhaust gas recirculation (EGR) backpressure Wiring, blockedlteaking pipes, EGR backpressure<br />

transducer - voltage high I transducer, ECM<br />

I<br />

84 1 Exhaust gas recirculation (EGR) backpressure I Wiring, blockedlleaking pipes, EGR backpressure<br />

91<br />

Exhaust gas recirculation (EGR) solenoid<br />

Exhaust gas recirculation (EGR) backpressure<br />

transducer - voltaqe below minimum<br />

transducer - voltage low<br />

Heated oxygen sensors (H02S) - multi-plugs<br />

interchanged<br />

I<br />

Wiring, blockedlteaking pipes, EGR solenoid, ECM<br />

Wiring, blockedlleaking pipes, EGR backpressure<br />

transducer, ECM<br />

transducer, ECM<br />

Wiring, multi-plugs<br />

4

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