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

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I Transmission<br />

Model: A3 80 A4 1001A6 A61Allroad A8 Coupe<br />

Cabriolet<br />

VAGtype<br />

Ptype<br />

<strong>Fault</strong> location<br />

Probable cause<br />

18169<br />

181 70<br />

18171<br />

-<br />

18179<br />

18180<br />

-<br />

-<br />

18192<br />

I81 93<br />

PI761<br />

PI 762<br />

ECM/TCM electrical connection, torque Wiring short to positive, ECM, TCM<br />

I reduction signal - short to positive<br />

1<br />

1<br />

I<br />

PI763<br />

PI767<br />

PI771<br />

PI772<br />

PI781<br />

Selector lever lock solenoid -<br />

short to earth<br />

Selector lever lock solenoid -<br />

short to positive<br />

Selector lever lock solenoid -<br />

open circuit<br />

ECM/TCM electrical connection -<br />

TP sensor s~gnal<br />

Engine control module (ECM), load<br />

s~gnal - open circuitkhort to positive<br />

Engine control module (ECM), load<br />

signal - short to earth<br />

ECM/TCM electrical connection, torque<br />

reduction signal - open c~rcuit/short to<br />

Engine control module (ECM), upldown<br />

shift signal - open circuitkhort to earth<br />

Engine control module (ECM), upldown<br />

shift signal - short to positive<br />

Wiring short to earth, selector lever lock solenoid,<br />

tiptronic gear selection switch, TCM<br />

Wiring short to positive, selector lever lock solenoid,<br />

tiptronic gear selection switch, TCM<br />

Wiring open circuit, selector lever lock solenoid,<br />

TCM<br />

Wiring, ECM, TCM<br />

Wiring open circuiffshort to earth, ECM<br />

Wiring open circuiffshort to positive, ECM<br />

18108 I - I Brake pressure switch - incorrect signal I Wiring, brake pressure switch<br />

-<br />

18222<br />

18223<br />

-<br />

18227<br />

18228<br />

-<br />

18232<br />

18233<br />

-<br />

18237<br />

18238<br />

18242<br />

1<br />

PI814<br />

PI815<br />

PI818<br />

PI819<br />

PI 820<br />

PI823<br />

PI 824<br />

PI825<br />

PI828<br />

PI829<br />

PI830<br />

earth<br />

Solenoid valve 4<br />

Pressure control (PC) solenoid 1 -<br />

open circuitlshort to earth<br />

Pressure control (PC) solenoid 1 -<br />

short to positive<br />

Solenoid valve 5<br />

Pressure control (PC) solenoid 2 -<br />

open circuitkhort to earth<br />

Pressure control (PC) solenoid 2 -<br />

short to positive<br />

Sotenoid valve 6<br />

Pressure control (PC) solenoid 3 -<br />

open circuitkhort to earth<br />

Pressure control (PC) solenoid 4 -<br />

open circuitkhort to earth<br />

Pressure control (PC) solenoid 4 -<br />

short to positive<br />

Pressure control (PC) solenoid 5 -<br />

open circuitkhort to earth<br />

Wiring open circuiffshort to positive, ECM<br />

Wiring short to earth, ECM<br />

Wiring open circuiffshort to earth, ECM, TCM<br />

Wiring, poor connection, transmission internal<br />

wiring, solenoid valve<br />

Wiring open circuiffshort to earth, PC solenoid<br />

Wiring short to positive, PC solenoid<br />

Wiring, poor connection, transmission internal<br />

wiring, solenoid valve<br />

Wiring open circuiffshort to earth, PC solenoid<br />

Wiring short to positive, PC solenoid<br />

Wiring, poor connection, transmission internal<br />

wiring, solenoid valve<br />

Wiring open circuiffshort to earth, PC solenoid<br />

Pressure control (PC) solenoid 3 - I Wiring short to positive, PC solenoid<br />

short to positive<br />

Solenoid valve 7<br />

Wiring, poor connection, transmission internal<br />

wiring, solenoid valve<br />

Wiring open circuiffshort to earth, PC solenoid<br />

Wiring short to positive, PC solenoid<br />

Wiring open circuitlshort to earth, PC solenoid

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