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

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AUDI<br />

Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -) A41S4<br />

100lA6 1,8/2,012,6/2,8/4,2 A6 2,s TDI A6lS61Allroad A81S8<br />

CoupelCabriolet 1,8/2,012,6/2,8 Cabriolet 1,9 TDI TT<br />

Engine management<br />

VAG type 1 EOBD type I <strong>Fault</strong> location<br />

5-digit<br />

Probable cause<br />

16652 1 - I Injector 3 - circuit high I Wiring short to positive, injector<br />

16654<br />

16655<br />

16657<br />

16658<br />

16660<br />

-<br />

-<br />

-<br />

-<br />

-<br />

16661 I - I Injector 6 - circuit high I Wiring short to positive, injector<br />

16684<br />

16685<br />

16686<br />

-<br />

-<br />

-<br />

Injector 4 - circuit low<br />

Injector 4 - circuit high<br />

Injector 5 - circuit low<br />

Injector 5 - circuit high<br />

Injector 6 - circuit low<br />

-<br />

Wiring short to earth, injector<br />

Wiring short to positive, injector<br />

Wiring short to earth, injector<br />

Wiring short to positive, injector<br />

Wiring short to earth, injector<br />

16687<br />

I -<br />

I Cylinder 3 - misfire detected Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

16688<br />

16689<br />

-<br />

-<br />

R<strong>and</strong>omlmultiple cylinder(s) - misfire<br />

detected<br />

Cylinder 1 - misfire detected<br />

Cylinder 2 - misfire detected<br />

Spark plug(s), HT lead(s), injector(s), ignition<br />

coil(s), low compression, wiring<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

16690<br />

I -<br />

I Cylinder 6 - misfire detected Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

16691<br />

16692<br />

16706<br />

16709<br />

-<br />

-<br />

1671 0<br />

1 -<br />

1671 1<br />

-<br />

-<br />

I -<br />

Cylinder 4 - misfire detected<br />

Cylinder 5 - misfire detected<br />

Cylinder 7 - misfire detected<br />

Cylinder 8 - misfire detected<br />

Crankshaft position (CKP) sensorlengine<br />

speed (RPM) sensor - rangelperformance<br />

problem<br />

Crankshaft position (CKP) sensorlengine<br />

speed (RPM) sensor - no signal<br />

Knock sensor (KS) 1, bank I - circuit<br />

malfunction<br />

Knock sensor (KS) 1, bank I - range/<br />

performance problem<br />

Knock sensor (KS) 1, bank 1 - low input<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

Spark plug, HT lead(s), injector, ignition coil, low<br />

compression, wiring<br />

Air gap, metal particles, insecure sensorlrotor,<br />

wiring, CKPIRPM sensor<br />

Wiring, poor connection, KS<br />

I Wiring, KS incorrectly tightened, KS<br />

1671 2<br />

I -<br />

/ Knock sensor (KS) 1, bank 1 - high input Wiring short to positive, KS incorrectly tightened,<br />

16716<br />

16717<br />

16719<br />

16721<br />

-<br />

-<br />

-<br />

-<br />

Knock sensor (KS) 2, bank 2 - low input<br />

Knock sensor (KS) 2, bank 2 - high input<br />

Crankshaft position (CKP) sensor - circuit<br />

malfunction<br />

Crankshaft position (CKP) sensor - low<br />

input<br />

Wiring, CKPIRPM sensor<br />

lnsecure KS, poor connection, wiring short to<br />

earth, incorrectly tightened, KS<br />

/ KS<br />

Insecure KS, poor connection, wiring short to<br />

earth, KS incorrectly tightened, KS<br />

Wiring short to positive, KS incorrectly tightened,<br />

KS<br />

Wiring, CKPIRPM sensor<br />

Insecure sensor, air gap, wiring short to earth,<br />

CKP/RPM sensor

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