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OV/Turbo Fiorino 1,4/1,5/1,6<br />

General information<br />

Refer to the front of this manual for general test conditions,<br />

terminology, detailed descriptions of wiring faults and a<br />

general trouble shooter for electrical and mechanical faults.<br />

No digital trouble codes available from vehicle manufacturer.<br />

Accessing and erasing<br />

The engine control module (ECM) fault memory can only be<br />

accessed and erased using diagnostic equipment able to<br />

display fault locations as a text description.<br />

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

I<br />

Fault location I Probable cause<br />

Accelerator pedal position (APP) sensor - implausible signal I Wiring, APP sensor, ECM<br />

AC signal<br />

Air conditioning relay - circuit malfunction<br />

Barometric pressure (BARO) sensor<br />

Camshaft position (CMP) actuator - circuit malfunction<br />

Camshaft position (CMP) sensor - circuit malfunction<br />

Closed throttle position (CTP) switch - malfunction<br />

Crankshaft position (CKP) sensorlengine speed (RPM)<br />

sensor - malfunction<br />

Engine control module (ECM) - defective I ECM<br />

Wiring, AC system, AC control module<br />

Wiring, supply voltage, AC system<br />

Wiring, BAR0 sensor, ECM<br />

Wiring, CMP actuator relay, CMP actuator, ECM<br />

Wiring, CMP sensor, ECM<br />

Wiring, mechanical fault, ISC actuator, ECM<br />

/ Wiring, air gap, CKPIRPM sensor, mechanical fault, ECM<br />

Engine control relay / Wiring, supply voltage, engine control relay<br />

Engine coolant temperature (ECT) sensor - openlshort circuit 1 Wiring, ECT sensor, ECM<br />

Evaporative emisslon (EVAP) canister purge valve - circuit / Wiring, supply voltage, EVAP canister purge valve, ECM<br />

malfunction<br />

Fuel pump relay I Wiring, supply voltage, fuel pump relay<br />

Heated oxygen sensor (H02S) I Wiring, H02S, air leak, ECM<br />

Idle air control (IAC) valve I Wiring, IAC valve, ECM<br />

ldle speed control (ISC) actuatorlthrottle motor I Wiring, ISC actuatorlthrottle motor, mechanical fault, ECM<br />

ldle control - outside specification Intake leaklblockage, throttle valve tightlsticking,<br />

IAC valve or ISC actuator, ECM<br />

Ignition amplifier - malfunction<br />

Ignition switch - circuit malfunction<br />

Wiring, supply voltage, ignition coil, ignition amplifier,<br />

ECM<br />

Wiring, supply voltage, ignition switch<br />

Immobilizer circuit - malfunction I Wiring, immobilizer defective, ECM<br />

Injector(s) - malfunction I Wiring, supply voltage, injector<br />

Injector 1<br />

Injector 2<br />

Injector 3<br />

Wiring, fuse, engine control relaylrelay module, injector<br />

Wiring, fuse, engine control relaylrelay module, injector<br />

Wiring, fuse, engine control relaylrelay module, injector<br />

Injector 4 I Wiring, fuse, engine control relaylrelay module, injector<br />

Injector 5<br />

Atodata I Eng~ne<br />

Wiring, fuse, engine control relaylrelay module, injector<br />

management 261<br />

lr]

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