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

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I<br />

Model: Freel<strong>and</strong>er 1,8 Freel<strong>and</strong>er 2,OD Turbo Freel<strong>and</strong>er 2,O TD4 Freel<strong>and</strong>er 2,5<br />

Discovery 2,5 TD5 Discovery 4,O Range Rover 3,O TD6 Range Rover 4,0/4,414,6<br />

LAND ROVER I<br />

Engine managernentltransmission 1-1<br />

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

EOBD<br />

type<br />

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

PO I Refer to EOBD trouble code table 1 -<br />

Probable cause<br />

Pi 000 Engine control module (ECM) memory / Memory erased, ECM<br />

erased - no codes stored<br />

PI100 Mass air flow (MAF) sensorlvolume air flow Wiring, supply voltage, earth connection, MAF sensor, ECM<br />

(VAF) sensor - circuit malfunction<br />

I<br />

I<br />

Mass air flow (MAF) sensorlvolume air Row<br />

(VAF) sensor - rangelperformance problem<br />

Mass air flow (MAF) sensorlvotume air flow<br />

(VAF) sensor - voltage low<br />

lntake air temperature (IAT) sensor - circuit<br />

intermittent<br />

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

rangelperformance problem<br />

Radiator outlet engine coolant temperature<br />

(ECT)- low in~ut<br />

Wiring, supply voltage, earth connection, intake leak, MAF<br />

sensor, ECM<br />

Wiring short to earth, supply voltage, earth connection, MAF<br />

sensor, ECM<br />

Wiring, ECT sensor, ECM<br />

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

circuit intermittent<br />

I<br />

Wiring, poor connection, IAT sensor, ECM<br />

Wiring, ECT sensor, ECM<br />

PI118 Radiator outlet engine coolant temperature Wiring, ECT sensor, ECM<br />

PI120<br />

PI 121<br />

PI122<br />

PI123<br />

(ECT) - high input 1<br />

Throttle position (TP) sensor - range1<br />

performance problem<br />

Throttle position (TP) sensor - rangel<br />

performance problem<br />

Throttte position (TP) sensor - circuit<br />

malfunction<br />

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

Wiring, supply voltage, TP sensor, ECM<br />

Wiring, supply voltage, TP sensor, ECM<br />

Wiring, supply voltage, TP sensor, ECM<br />

Wiring short to earth, supply voltage, earth connection, TP<br />

sensor, ECM<br />

PI124 ( Throttle position (TP) sensor - vottage high ( Wiring open circuitlshort to positive, TP sensor, ECM<br />

PI125 Throttle position (TP) sensor - circuit<br />

intermittent<br />

Wiring, TP sensor, ECM<br />

PI128 Heated oxygen sensor (H02S) upstream -<br />

transposed<br />

Wiring transposed<br />

PI129 Heated oxygen sensors (H02S) 1 - sensors Wiring<br />

transposed<br />

PI1 30 Heated oxygen sensor (H02S) upstream, Wiring, heater supply voltage, earth connection, H02S, ECM<br />

bank 1 - ran~e/perfonnance<br />

PI 131 Heated oxygen sensor (H02S) upstream, lntake leak, fuel pressure low, injector(s) blocked, H02S, ECM<br />

I bank I - lean<br />

PI132 Heated oxygen sensor (H02S) upstream, Intake blockage, fuel pressure high, injector(s) leaking, H02S,<br />

bank 1 - rich<br />

I ECM<br />

Pi150 Heated oxygen sensor (H025) upstream, Wiring, heater supply voltage, earth connection, H02S, ECM<br />

bank 2 - rangelperformance<br />

PI151 Heated oxygen sensor (H02S) upstream, Intake leak, fuel pressure low, injector@) blocked, H02S, ECM<br />

bank 2 - lean<br />

PI 152<br />

PI170<br />

[<strong>Autodata</strong> I<br />

Heated oxygen sensor (H02S) upstream,<br />

bank 2 - rich<br />

Downstream fuel trim (FT), bank 1 -<br />

malfunction<br />

Intake blockage, fuel pressure high, injector(s) leaking, H02S,<br />

ECM<br />

Wiring, H02S<br />

4<br />

Eng~ne rnanagement'transm~sslon 365

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