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

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I<br />

LEXUS<br />

Model: IS200 2,O IS300 3,O GS300 3,O<br />

I Engine management I<br />

FIash type I EOBD type I <strong>Fault</strong> location<br />

-<br />

-<br />

89<br />

-<br />

-<br />

PI 600<br />

Probable cause<br />

- ( PI656 1 Oil control valve - malfunction 1 Wiring, oil control valve, ECM<br />

91<br />

I -<br />

93<br />

93<br />

94<br />

94<br />

PI 605<br />

PI 633<br />

PI 645<br />

PI 651<br />

I -<br />

-<br />

-<br />

-<br />

Engine controt module (ECM)-<br />

supply voltage<br />

Knock control - malfunction<br />

Engine control module (ECNI),<br />

TAC system - malfunction<br />

Body control module (BCM) - malfunction<br />

Intake manifold air control solenoid -<br />

malfunction<br />

Wiring, fuse, ECM<br />

ECM<br />

ECM<br />

BCM, AC control module, wiring<br />

Insufficient coolant temperature for closed loop Wiring, engine cooling system, coolant<br />

fuel control / thermostat. ECT sensor<br />

R<strong>and</strong>omlmultiple cylinder(s) - misfire Spark plug(s), HT lead@), injector(s), ignition<br />

detected<br />

coil(s), low compression, wiring<br />

Cylinder 1-6 - misfire detected<br />

Engine mechanical fault, wiring, ignitionlfuel<br />

system, injector. ECT sensor, MAF sensor, ECM<br />

Catalytic converter system, bank 112 - Catalytic converter, wiring, HO2S 2<br />

efficiency below threshold<br />

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

valve - circuit malfunction<br />

96 1 - 1 Engine control module (ECM) - ] Wiring, fuse, ECM<br />

96<br />

97<br />

-<br />

PI 780<br />

( supply voltage<br />

Intake manifold air control solenoid -<br />

malfunction<br />

Parklneutral position (PNP) switch<br />

Wiring, intake manifold air control solenoid,<br />

ECM<br />

Wiring, intake manifold air control solenoid,<br />

ECM<br />

Wiring, PNP switch, ECM<br />

- 1 B2785 1 Ignition switch ON - malfunction ] Ignition switch, EC relay, wiring<br />

- 1 B2786 1 Ignition switch OFF - malfunction I Ignition switch, EC relay, wiring<br />

I I 1<br />

- 1 B2791 1 Key unlock warning switch - malfunction I Wiring, key unlock warning switch, EC relay<br />

99 1 B2795 1 Unrecognized key code I lncorrectldamaged key<br />

- 1 82796 1 Immobilizer system - no communication ] Key, transponder, wiring, ECM<br />

-<br />

-<br />

-<br />

~2797<br />

B2798<br />

Communication error 1 - interference<br />

Communication error 2<br />

Incorrect key has been used, wiring, ICM, ECM<br />

Key, transponder, ICM, wiring, ECM<br />

[ 380 Engme management<br />

/<strong>Autodata</strong>

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