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

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Model: A3 80 A4 1001A6 A6IAllroad A8 Coupe<br />

Cabriolet<br />

Transmission<br />

VAG type I P type I <strong>Fault</strong> location I Probable cause<br />

I<br />

00518 - I Throttle position (TP) sensor I Wiring, signal from TP sensor or ECM, TP sensor<br />

00526 1 - I Stop lamp switch I Wiring, stop lamp switch<br />

1 I<br />

00529 - I Engine RPM input - no signal 1 Wiring, ECM<br />

00532<br />

00543<br />

00545<br />

00548<br />

00549<br />

00596<br />

00597<br />

00638<br />

00641<br />

00652<br />

00660<br />

00668<br />

00753<br />

00777<br />

-<br />

-<br />

-<br />

-<br />

1 -<br />

-<br />

-<br />

-<br />

I -<br />

-<br />

-<br />

-<br />

-<br />

-<br />

Transmission control module (TCM) - Alternator, battery, wiring<br />

supply voltage<br />

Maximum engine RPM exceeded Incorrect gear shift, CKPIRPM sensor, valve body,<br />

ECM<br />

ECM/TCM electrical<br />

Wiring, ECM, TCM<br />

connection - torque reduction signal<br />

Transmission control module (TCM), fault Fuse, supply voltage wiring, earth wiring<br />

memory - supply voltage, from battery<br />

ECM/TCM electrical connection - I Wiring, ECM, TCM<br />

fuel consumption signal<br />

Solenoid valves - short circuit<br />

Poor connection, transmission internal wiring<br />

ABS control module, wheel speed Wiring, ABS trouble code(s) stored, incorrect ABS<br />

signals - speed difference too great control module<br />

ECM/TCM electrical connection - Wiring, ECM, TCM<br />

TP sensor signal<br />

Transmission fluid temperature (TFT) ATF level incorrect, towing weight limit exceeded,<br />

sensor - high input<br />

transmission internal wiring, TFT sensor<br />

Gear monitoring - implausible signal Wiring, hydraulic fault, clutchlvalve body<br />

Transmission kick-down switchlthrottle<br />

position (TP) sensor - implausible<br />

signal<br />

Transmission control module (TCM) -<br />

supply voltage, from battery<br />

ABS control module, wheel speed<br />

signals - implausible<br />

CAN data bus, APP sensor - incorrect<br />

signal<br />

00789 1 - I Reverse gear position switch I Wiring, reverse gear position switch, TR switch<br />

01 045<br />

01166<br />

01192<br />

01196<br />

-<br />

-<br />

-<br />

-<br />

Transmission control module (TCM) -<br />

coding<br />

Tiptronic gear selection switch -<br />

incorrect signal<br />

Engine torque signal<br />

Wiring, accelerator cable adjustment, kick-down<br />

switch, TP sensor<br />

Wiring, fuse<br />

Wiring, ABS trouble code@) stored, incorrect ABS<br />

control module<br />

Wiring, APP sensor signal from ECM, ECM trouble<br />

code(s) stored<br />

Incorrectly coded<br />

01236 1 - I Selector lever lock solenoid I Wiring, selector lever lock solenoid<br />

- -<br />

01312<br />

01314<br />

01316<br />

-<br />

-<br />

-<br />

Torque converter clutch (TCC) solenoid -<br />

mechanical fault<br />

CAN data bus, ECM/TCM<br />

CAN d& bus-- defective<br />

CAN data bus, ECM<br />

- I CAN data bus. ABS<br />

-<br />

Wiring, tiptronic gear selection switch<br />

<strong>Trouble</strong> codes 01312101314 stored, ECM incorrectly<br />

coded, faulty enginelcomponent(s), ECM<br />

ATF level, clutch slipping, TCC solenoid, valve body<br />

defective<br />

Ignition switched ON with TCM disconnected,<br />

wiring, ECM, TCM<br />

<strong>Trouble</strong> code(s) stored in other system@), wiring<br />

Wiring, ECM trouble code(s) stored, ECM incorrectly<br />

coded, wiring<br />

ABS control module trouble code@) stored, wiring

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