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

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Model: A2 A3lS3 80 1,6/2,012,6/2,8 80 1,9 TDI (07193 -+) A4lS4<br />

1001A6 1,8/2,012,6/2,8/4,2 A6 2,5 TDI A6lS61Allroad A8lS8<br />

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

Engine management I<br />

VAG type<br />

5-digit<br />

16724<br />

16725<br />

16726<br />

16727<br />

16730<br />

16731<br />

16732<br />

16735<br />

16736<br />

16737<br />

16738<br />

16764<br />

16784<br />

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

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

-<br />

16785<br />

I -<br />

16786<br />

16787<br />

16788<br />

16791<br />

16792<br />

-<br />

-<br />

16795<br />

I -<br />

16796<br />

I -<br />

-<br />

16802<br />

16804<br />

16806<br />

-<br />

-<br />

-<br />

-<br />

I -<br />

Camshaft position (CMP) sensor A,<br />

bank 1 - circuit malfunction<br />

Camshaft position (CMP) sensor A,<br />

bank 1 - rangelperformance problem<br />

Camshaft position (CMP) sensor A,<br />

bank 1 - low input<br />

Camshaft position (CMP) sensor A,<br />

bank 1 - high input<br />

Camshaft position (CMP) sensor A,<br />

bank 2 - rangelperformance problem<br />

Camshaft position (CMP) sensor A,<br />

bank 2 - low input<br />

Camshaft position (CMP) sensor A,<br />

bank 2 - high input<br />

Ignition coil, cylinder 1, primary1<br />

secondary - circuit malfunction<br />

Ignition coil, cylinder 2, primary1<br />

secondary - circuit malfunction<br />

Ignition coil, cylinder 3, primary1<br />

secondary - circuit malfunction<br />

Ignition coil, cylinder 4, primary1<br />

secondary - circuit malfunction<br />

Probable cause<br />

Wiring, CMP sensor<br />

Insecure sensorlrotor, air gap, wiring, CMP<br />

sensor<br />

Wiring short to earth, CMP sensor<br />

Wiring short to positive, CMP sensor<br />

Insecure sensorlrotor, air gap, wiring,<br />

CMP sensor<br />

Wiring short to earth, CMP sensor<br />

Wiring short to positive, CMP sensor<br />

Wiring, ignition amplifier, ignition coil<br />

Wiring, ignition amplifier, ignition coil<br />

Wiring, ignition amplifier, ignition coil<br />

Wiring, ignition amplifier, ignition coil<br />

Glow plugs - clrcuit A malfunction Wiring, glow plug relay, fuse, glow plugs<br />

Exhaust gas recirculation (EGR) system - Basic setting not carried out, EGR valvelsolenoid<br />

flow malfunction<br />

Exhaust gas recirculation (EGR) system - Hose leaklblockage, basic setting not carried out,<br />

insufficient flow detected<br />

I EGR valvelsolenoid<br />

Exhaust gas recirculation (EGR) system - EGR valvelsolenoid, basic setting not carried out<br />

excessive flow detected<br />

Exhaust gas recirculation (EGR) system -<br />

circuit malfunction<br />

Exhaust gas recirculation (EGR) system -<br />

rangelperformance problem<br />

Exhaust gas recirculation (EGR) valve<br />

position sensor - low input<br />

Exhaust gas recirculation (EGR) valve Wiring short to positive, EGR valve position<br />

position sensor - high input<br />

sensor<br />

Secondary air injection (AIR) system - I AIR pump, AIR valve, AIR hose@)<br />

incorrect flow detected<br />

air injection (AIR) 1 Gring, AIR solenoid<br />

solenoid A - circuit malfunction<br />

Secondary air injection (AIR) pump<br />

relay A - circuit malfunction<br />

Catalytic converter system, bank 1 -<br />

efficiency below threshold<br />

Main catalytic converter, bank 1 -<br />

efficiency below threshold<br />

Wiring, EGR valvelsolenoid<br />

Hose connection(s), wiring, EGR valvelsolenoid<br />

Wiring short to earth, EGR valve position sensor<br />

Wiring, AIR pump relay<br />

Catalytic converter<br />

Catalytic converter<br />

/<strong>Autodata</strong> I Eng~ne<br />

+I<br />

management 107

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