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

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EOBD trouble code table<br />

TrOub'e / RUN location<br />

code<br />

PO555<br />

PO556<br />

I<br />

I Probable taus.<br />

Brake servo pressure sensor - circuit malfunction Wiring, poor connection, brake servo pressure<br />

sensor, ECM<br />

Brake servo pressure sensor - circuit rangelperformance Wiring, poor connection, brake servo pressure<br />

Brake servo pressure sensor - circuit low input<br />

sensor, ECM<br />

Wiring short to earth, brake servo pressure sensor,<br />

1 ECM<br />

Brake servo pressure sensor - circuit high input Wiring short to positivebrake servo pressu~ensor,<br />

ECM<br />

Brake servo pressure sensor - circuit intermittent Wiring, poor connection, brake servo pressure<br />

sensor, ECM<br />

System voltage - malfunction<br />

Wiring, poor connection, battery, alternator<br />

PO561 I System voltage - unstable I Wiring, poor connection, battery, alternator<br />

PO562 1 System voltage - low I Wiring, poor connection, battery, alternator<br />

System voltage - high<br />

Cruise control system, multi-function switch input A -<br />

circuit malfunction<br />

Cruise control master switch, ON signal - malfunction<br />

I<br />

Alternator<br />

Wiring, poor connection, multi-function switch,<br />

mechanical fault<br />

Wiring, cruise control master switch, ECM<br />

PO566 1 Cruise control master switch, OFF signal - malfunction 1 Wiring, cruise control master switch, ECM<br />

PO567<br />

PO568<br />

PO569<br />

PO570<br />

PO571<br />

PO572<br />

I<br />

Cruise control selector switch, RESUME signal -<br />

malfunction<br />

Cruise control master switch, SET signal - malfunction<br />

Cruise control selector switch, COAST signal -<br />

malfunction<br />

I Cruise control system, APP sensor siynal - malfunction I Wiring, APP sensor, ECM<br />

Cruiselbrake switch A - circuit malfunction<br />

Cruiselbrake switch A - circuit low<br />

PO573 1 Cruiselbrake switch A - circuit high I Wiring short to positive, cruiselbrake switch, ECM<br />

PO574<br />

PO575<br />

Cruise control system - vehicle speed too high<br />

Cruise control system - input circuit malfunction<br />

PO576 ( Cruise control system - input circuit low I Wiring short to earth<br />

PO577<br />

PO578<br />

PO579<br />

PO580<br />

PO581<br />

PO582<br />

PO583<br />

PO584<br />

PO585<br />

PO586<br />

PO587<br />

PO588<br />

PO589<br />

Cruise control system - input circuit high<br />

Cruise control system, multi-function switch input A -<br />

circuit stuck<br />

Cruise control system, multi-function switch input A -<br />

circuit rangelperformance<br />

Cruise control system, multi-function switch input A -<br />

circuit low<br />

Cruise control system, multi-function switch input A -<br />

circuit high<br />

Cruise control system, vacuum control - circuit open<br />

( Cruise control system, vacuum control - circuit low<br />

Cruise control system, vacuum control - circuit high<br />

Cruise control system, multi-function switch input AIB -<br />

correlation<br />

Cruise control system, vent control - circuit open<br />

Cruise control system, vent control - circuit low<br />

Cruise control system, vent control - circuit high<br />

Cruise control system, multi-function switch input B -<br />

circuit malfunction<br />

I<br />

Wiring, cruise control selector switch, ECM<br />

Wiring, cruise control master switch, ECM<br />

Wiring, cruise control selector switch, ECM<br />

Wiring, cruiselbrake switch, ECM<br />

Wiring short to earth, cruiselbrake switch, ECM<br />

Mechanical fault<br />

Wiring, poor connection, mechanical fault, ECM<br />

Wiring short to positive<br />

Wiring, poor connection, multi-function switch,<br />

mechanical fault<br />

Wiring, poor connection, multi-function switch,<br />

mechanical fault<br />

Wiring short to earth, multi-function switch,<br />

mechanical fault<br />

Wiring short to positive, multi-function switch,<br />

mechanical fault<br />

Wiring, vacuum control solenoid<br />

Wiring short to earth, vacuum control solenoid<br />

Wiring short to positive, vacuum control solenoid<br />

Mechanical fault<br />

Wiring, vent control solenoid<br />

Wiring short to earth, vent control solenoid<br />

Wiring short to positive, vent control solenoid<br />

Wiring, poor connection, multi-function switch,<br />

mechanical fault

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