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

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Model: 325tdltds (E36) 525tdltds (E34)<br />

BMW<br />

Engine management I<br />

Scanner<br />

type<br />

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

Engine control module (ECM) - internal fault<br />

Intake air temperature (IAT) sensor - malfunction<br />

Engine control module (ECM) - supply voltage<br />

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

defective<br />

Cruise control module - malfunction<br />

Fuel quantity adjuster position sensor, in fuel<br />

injection pump - malfunction<br />

Battery voltage - too low<br />

Glow plug timer relay - defective<br />

Alarm system control moduke - circuit<br />

malfunction<br />

Clutch pedal position (CPP) switch - malfunction<br />

Vehicle speed sensor (VSS) - signal<br />

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

Fuel temperature sensor, in fuel injection pump -<br />

circuit malfunction<br />

Fuel filter warning lamp switch - water detected<br />

Accelerator pedal position (APP) sensor -<br />

malfunction<br />

Alarm system control module - circuit<br />

malfunction<br />

Engine speed (RPM) sensor - circuit<br />

malfunction<br />

Intake air temperature (IAT) sensor - malfunction<br />

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

malfunction<br />

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

TC system - malfunction<br />

Engine control module (ECM) - internal fault<br />

Engine control module (ECM) - output stages<br />

Turbocharger (TC) boost pressure - lowlhiqh<br />

Engine speed (RPM) sensor - circuit<br />

malfunction<br />

Fuel temperature sensor, in fuel injection pump -<br />

circuit malfunction<br />

Accelerator pedal position (APP) sensor -<br />

malfunction<br />

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

TC system - malfunction<br />

Fuel quantity adjuster position sensor, in fuel<br />

~njection pumplinjector needle lift sensor -<br />

malfunction<br />

Turbocharger (TC) system - malfunction<br />

Probable cause<br />

ECM<br />

Wiring, connector, IAT sensor<br />

Wiring, connectors, battery<br />

Wiring, EGR solenoid<br />

Wiring, connectors, cruise control module<br />

Wiring, connector, fuel quantity adjuster position sensor<br />

Wiring, alternator, battery<br />

Wiring, glow plug timer relay, ECM<br />

Wiring, alarm system control module<br />

Wiring, connector, CPP switch<br />

Wiring, connector, VSS, instrument panel<br />

Wiring, connector, BPP switch<br />

Wiring, connector, fuel injection pump<br />

Drain fuel filter<br />

Wiring, connector, APP sensor<br />

Wiring, alarm system control module<br />

Wiring, connectors, flywheel ring gear damaged, air gap,<br />

RPM sensor<br />

Wiring, connector, IAT sensor<br />

Wiring, connector, ECT sensor<br />

Wiring, connector, intake leak, MAP sensor<br />

ECM<br />

Wiring, ECM controlled components, ECM<br />

Wiring, MAP sensor, hose(s), TC bypass valve, TC<br />

Wiring, connectors, flywheel ring gear damaged, air gap,<br />

RPM sensor<br />

Wiring, connector, fuel injection pump<br />

Wiring, connector, APP sensor<br />

Wiring, connector, intake leak, MAP sensor<br />

Wiring, connector, fuel quantity adjuster position sensor,<br />

injector needle lift sensor, shield wiring<br />

Wiring, connectors, hoses, TC, TC bypass valve,<br />

MAP sensor, ECM<br />

/<strong>Autodata</strong><br />

Engine management 165

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