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

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I bLr'ial- Engine management/transmission Model: Escort RS 2000 Escort Cosworth Flash type Fault location Probable cause Vehicle speed sensor (VSS) 1 Wiring, VSS, ECM Idle air control (IAC) valve - maximum engine speed Idle air control (IAC) valve - minimum engine speed Idle air control (IAC) valve Exhaust gas recirculation (EGR) valve Identification code for engine control module (ECW AC 'ON' during test I - AT in 'D' during test Octane plug 1 - short circuit Octane plug 2 - short circuit Idle speed adjust - short circuit 1 - Knock sensor (KS) Throttle opened too earty during test Phasing of ignition pick-uplspark output signals Mixture adjustment resistor Start of service set mode Power loss - cylinder 1 Power loss - cylinder 2 Power loss - cylinder 3 Power loss - cylinder 4 Brake pedal position (BPP) switch - ONIOFF Kick-down switch (DOHC) Fuel temperature switch Turbocharger (TC) wastegate regulating valve Turbocharger (TC) wastegate regulating valve End of service set mode Secondary air injection (AIR) solenoid Wiring, IAC valve, ECM Wiring, IAC valve, ECM I Wiring, IAC valve, ECM I Wiring, - restrictedlleaking EGR pipes, EGR valve, ECM - - - - I Wiring, fuel quality, ignition timing, KS, ECM - Wiring, CKP sensor, ignition control module (ICM), ECM Wiring, air leaks, vacuum leaks, MAP sensor, mixture adjustment resistor, injectors, spark plugs - Compression, spark plugs I Compression, spark plugs I Compression, spark plugs I Compression, spark plugs Wiring, BPP switch, ECM Wiring, kick-down switch, ECM I Wiring, fuel temperature switch I Wiring, valve, turbocharger, ECM I Wiring, valve, turbocharger, ECM Exhaust gas recirculation (EGR) solenoid 1 Wiring, blockedlleaking pipes, EGR solenoid, ECM Turbocharger (TC) wastegate regulating valve - Wiring, AIR solenoid, blockedlleaking pipes, ECM Wiring, wastegate regulating valve, blockedlleaking pipes, ECM Evaporative emission (EVAP) canister purge valve Wiring, EVAP canister purge valve, ECM Fuel pump I Wiring, fuel pump relay, fuel pump, ECM 3rdl4th gear shift solenoid I Wiring, shift solenoid, transmission fault, ECM Torque converter clutch (TCC) lock-up solenoid I Wiring, lock-up solenoid, transmission fault, ECM Brake pedal position (BPP) switch - AT Kickdown actuated Power steering pressure (PSP) switch - not activated Wiring, BPP switch, brake pedal, ECM - Wiring, PSP switch, power steering pump, power steering system pressure, ECM

Engine management/transmission h7 L ~ + ~ Flash type 1 Fault location I Probable cause 81 82 83 Exhaust gas recirculation (EGR) backpressure Wiring, blockedlteaking pipes, EGR backpressure transducer - voltage high I transducer, ECM I 84 1 Exhaust gas recirculation (EGR) backpressure I Wiring, blockedlleaking pipes, EGR backpressure 91 Exhaust gas recirculation (EGR) solenoid Exhaust gas recirculation (EGR) backpressure transducer - voltaqe below minimum transducer - voltage low Heated oxygen sensors (H02S) - multi-plugs interchanged I Wiring, blockedlteaking pipes, EGR solenoid, ECM Wiring, blockedlleaking pipes, EGR backpressure transducer, ECM transducer, ECM Wiring, multi-plugs 4

I bLr'ial- Engine management/transmission<br />

Model: Escort RS 2000 Escort Cosworth<br />

Flash type<br />

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

Probable cause<br />

Vehicle speed sensor (VSS) 1 Wiring, VSS, ECM<br />

Idle air control (IAC) valve - maximum engine<br />

speed<br />

Idle air control (IAC) valve - minimum engine<br />

speed<br />

Idle air control (IAC) valve<br />

Exhaust gas recirculation (EGR) valve<br />

Identification code for engine control module<br />

(ECW<br />

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

AT in 'D' during test<br />

Octane plug 1 - short circuit<br />

Octane plug 2 - short circuit<br />

Idle speed adjust - short circuit 1 -<br />

Knock sensor (KS)<br />

Throttle opened too earty during test<br />

Phasing of ignition pick-uplspark output signals<br />

Mixture adjustment resistor<br />

Start of service set mode<br />

Power loss - cylinder 1<br />

Power loss - cylinder 2<br />

Power loss - cylinder 3<br />

Power loss - cylinder 4<br />

Brake pedal position (BPP) switch - ONIOFF<br />

Kick-down switch (DOHC)<br />

Fuel temperature switch<br />

Turbocharger (TC) wastegate regulating valve<br />

Turbocharger (TC) wastegate regulating valve<br />

End of service set mode<br />

Secondary air injection (AIR) solenoid<br />

Wiring, IAC valve, ECM<br />

Wiring, IAC valve, ECM<br />

I Wiring, IAC valve, ECM<br />

I Wiring, - restrictedlleaking EGR pipes, EGR valve, ECM<br />

-<br />

-<br />

-<br />

-<br />

I Wiring, fuel quality, ignition timing, KS, ECM<br />

-<br />

Wiring, CKP sensor, ignition control module (ICM), ECM<br />

Wiring, air leaks, vacuum leaks, MAP sensor, mixture<br />

adjustment resistor, injectors, spark plugs<br />

-<br />

Compression, spark plugs<br />

I Compression, spark plugs<br />

I Compression, spark plugs<br />

I Compression, spark plugs<br />

Wiring, BPP switch, ECM<br />

Wiring, kick-down switch, ECM<br />

I Wiring, fuel temperature switch<br />

I Wiring, valve, turbocharger, ECM<br />

I Wiring, valve, turbocharger, ECM<br />

Exhaust gas recirculation (EGR) solenoid 1 Wiring, blockedlleaking pipes, EGR solenoid, ECM<br />

Turbocharger (TC) wastegate regulating valve<br />

-<br />

Wiring, AIR solenoid, blockedlleaking pipes, ECM<br />

Wiring, wastegate regulating valve, blockedlleaking<br />

pipes, ECM<br />

Evaporative emission (EVAP) canister purge valve Wiring, EVAP canister purge valve, ECM<br />

Fuel pump<br />

I Wiring, fuel pump relay, fuel pump, ECM<br />

3rdl4th gear shift solenoid<br />

I Wiring, shift solenoid, transmission fault, ECM<br />

Torque converter clutch (TCC) lock-up solenoid I Wiring, lock-up solenoid, transmission fault, ECM<br />

Brake pedal position (BPP) switch - AT<br />

Kickdown actuated<br />

Power steering pressure (PSP) switch - not<br />

activated<br />

Wiring, BPP switch, brake pedal, ECM<br />

-<br />

Wiring, PSP switch, power steering pump, power steering<br />

system pressure, ECM

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