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

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Discovery 2,s TD5 Discovery 4,O Range Rover 3,O TD6 Range Rover 4,014,4/4,6<br />

EOBD<br />

type<br />

I <strong>Fault</strong> Iocatiom I Probable cause<br />

PI 536<br />

PI 537<br />

PI537 H<br />

PI538<br />

PI538 H<br />

PI550<br />

AC compressor request - compressor relay<br />

open circuit<br />

AC compressor request - compressor relay<br />

short circuit to earth<br />

intake manifold air control bank 1 - stuck<br />

open<br />

AC compressor request - compressor relay<br />

short circuit to positive<br />

Intake manifold air control bank 2 - stuck<br />

open<br />

Idle air control (IAC) valve closing coil -<br />

malfunction<br />

Wiring, compressor relay<br />

Wiring, compressor relay<br />

Wiring, intake manifold air control, mechanical fault<br />

Wiring, compressor relay<br />

PI 550 H I Power steering pressure (PSP) switch I Wiring, PAS system, PSP switch, ECM<br />

PI 551<br />

PI 552<br />

PI 553<br />

PI 590<br />

Idle air control (IAC) valve closing coil -<br />

circuit malfunction<br />

Idle air control (IAC) valve closing coil -<br />

circuit low<br />

Idle air control (IAC) valve closing coil -<br />

circuit high<br />

Antilock brake system (ABS) rough road<br />

signal - error message from ABS control unit<br />

PI 591 Antiiock brake system (ABS) rough road I Wiring, ABS system<br />

signal - short circuit to earthlopen circuit<br />

1<br />

Wiring, intake manifold air control, mechanical fault<br />

Wiring, IAC valve<br />

Wiring, IAC valve<br />

Wiring open circuitlshort circuit to earth, IAC valve<br />

Wiring open circuitlshort circuit to positive, IAC valve,<br />

Wiring, ABS system<br />

PI 592 Antilock brake system (ABS) rough road Wiring, ABS system<br />

signal - short circuit to positiie<br />

PI 605 I Power interuption in KAM Wiring, battery terminal corrosion, loose battery connection,<br />

I ECM<br />

PI641 Fuel pump - failure<br />

Fuel pump, fuel pipe blockage, mechanical fault<br />

PI 642<br />

PI 643<br />

Fuel pump - voltage high<br />

Fuel pump - voltage low<br />

PI644 I Fuef wrno - speed con I -<br />

PI 645<br />

PI 650<br />

PI651<br />

PI663<br />

PI 664<br />

PI 665<br />

PI 666<br />

I<br />

Fuel pump<br />

Power steering pressure (PSP) switch<br />

Power steering pressure (PSP) switch -<br />

circuit malfunction<br />

Throttle angleltorque signal - ABSlHDC<br />

wiring open circuit<br />

Throttle angleltorque signal - ABSlHDC<br />

wiring short to earth<br />

Throttle angleltorque signal - ABSlHDC<br />

wiring short to positive<br />

Immobilizer signal - CAN data bus<br />

Wiring short to positive, relay, fuel pump<br />

Wiring short to earth, relay, fuel pump<br />

Fuel pump, fuel pressure regulator, fuel pipe blockage,<br />

mechanical fault<br />

Wiring, PSP switch, ECM<br />

Wiring, PSP switch, ECM<br />

Wiring, ABS system, HDC system<br />

Wiring, ABS system, HDC system<br />

PI667 1 Immobilizer signal - CAN data bus I Wiring short circuit to earth<br />

PI668 Immobilizer signal - CAN data bus<br />

PI669 Engine control module (ECM) cooling fan -<br />

circuit malfunction<br />

Wiring, ABS system, HDC system<br />

Wiring, immobilizer control module<br />

Wiring open circuit<br />

Wiring, cooling fan relay, cooling fan motor

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