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

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Model: Fiesta 1,311,4 Escort 1,311,4<br />

<strong>Trouble</strong> code identification<br />

Flash type<br />

10<br />

11<br />

12<br />

I<br />

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

Comm<strong>and</strong> code<br />

System pass<br />

Volume air flow (VAF) sensor 1<br />

I Probable cause<br />

13 1 Engine coolant temperature (ECT) sensor I Wiring, ECT sensor, ECM<br />

14 I Intake air temperature (IAT) sensor I Wiring, IAT sensor, ECM<br />

15<br />

17<br />

18<br />

Throttle position (TP) sensor<br />

Manifold absolute pressure (MAP) sensor<br />

Battery voltage - low<br />

19 / Keep Alive Memory (KAM) failure I ECM<br />

20 1 Separation code I -<br />

21<br />

22<br />

23<br />

24<br />

25<br />

27<br />

28<br />

31<br />

Ignition signal - erratic<br />

Volume air flow (VAF) sensor 1 - voltage high<br />

Engine coolant temperature (ECT) sensor -<br />

voltage high<br />

Intake air temperature (IAT) sensor<br />

Throffle position (TP) sensor - voltage high<br />

Manifold absolute pressure (MAP) sensor -<br />

voltage high<br />

Heated oxygen sensor (H02S) - mixture rich<br />

Memory failure<br />

-<br />

-<br />

Wiring, VAF sensor, air leak, air restriction, ECM<br />

Wiring, TP sensor, ECM<br />

Wiring, MAP sensor, ECM<br />

Wiring, battery<br />

32 I Volume air flow (VAF) sensor 1 - voltage low 1 Wiring, VAF sensor, ECM<br />

34<br />

35<br />

Engine coolant temperature (ECT) sensor -<br />

voltage low<br />

Intake air temperature (IAT) sensor<br />

Throttle position (TP) sensor - voltage low<br />

-<br />

Wiring, CKP sensor, alternator<br />

Wiring, VAF sensor, ECM<br />

Wiring, ECT sensor, ECM<br />

Wiring, IAT sensor, ECM<br />

Wiring, TP sensor, ECM<br />

Wiring, MAP sensor, ECM<br />

Wiring, fuel supply, injector control, H02S, ECM<br />

ECM<br />

I Wiring, ECT sensor, ECM<br />

36 I Volume air flow (VAF) sensor 2 - voltage low I Wiring, VAF sensor, ECM<br />

Manifold absolute pressure (MAP) sensor -<br />

voltage tow<br />

- -- -<br />

I Heated oxygen sensor (H02S) - mixture weak<br />

Wiring, IAT sensor, ECM<br />

Wiring, TP sensor, ECM<br />

I Wiring, MAP sensor, ECM<br />

I Wiring, fuel supply, injector control, HO~S, ECM<br />

41 I Volume air flow (VAF) sensor I - signal I Wiring, VAF sensor, ECM<br />

42 I Manifold absolute pressure (MAP) sensor - signal 1 Wiring, MAP sensor, ECM<br />

43 1 Throttle position (TP) sensor - signal I Wiring, TP sensor, ECM<br />

44<br />

45<br />

Blip test (throttle open) not performed<br />

Vehicle speed sensor (VSS)<br />

46 I Idle air control (IAC) valve - maximum engine speed I Wiring, IAC valve, ECM<br />

47 I Idle air control (IAC) valve - minimum engine speed I Wiring, IAC valve, ECM<br />

48 I Closed throttle position (CTP) switch I Wiring, CTP switch, ECM<br />

I<br />

49 I Exhaust gas recirculation (EGR) valve I Wiring, restrictedlleaking EGR pipes, EGR valve, ECM<br />

I<br />

-<br />

I<br />

50 I Identification code for engine control module (ECM) I -<br />

5 1 I AC 'ON' during test 1 -<br />

I<br />

-<br />

Wiring, VSS, ECM<br />

-

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