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Trouble Godes - diagramas.diagram...

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Model: Supra 3,Ofrurbo TOYOTA<br />

Test mode<br />

Switch ignition OFF.<br />

Bridge data link connector (DLC) terminals El and TE2<br />

PI.<br />

Switch ignition ON.<br />

Ensure malfunction indicator lamp (MIL) flashes four times<br />

per second.<br />

Start engine.<br />

Drive vehicle to meet conditions of customer complaint.<br />

Stop vehicle. Do not switch ignition OFF.<br />

With data link connector (DLC) terminals El and TE2<br />

bridged, bridge terminals El and TEI H.<br />

Count MIL flashes. Note trouble codes. Compare with<br />

trouble code table.<br />

Switch ignition OFF.<br />

Remove bridge wires.<br />

Rectify faults as necessary.<br />

NOTE: Code 43 may be produced if this procedure is NOT carried<br />

out correctly. Code 51 will be produced during this<br />

procedure and can be ignored.<br />

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

Erasing<br />

11111 I No fault found I -<br />

12<br />

13<br />

Engine management<br />

NOTE: Fuse removal duration de~ends on ambient tem~erature.<br />

The lower the temperature the longer the fuse nhst be<br />

removed.<br />

Switch ignition OFF.<br />

Remove EFI no. 1 fuse (30A) from underbonnet fusebox for<br />

10 seconds minimum 8.<br />

Refit fuse.<br />

<strong>Trouble</strong> codes may also be erased by disconnecting battery<br />

leads.<br />

WARNING: Disconnecting battery may erase memory from<br />

electronic units (e.g. radio, clock).<br />

Repeat checking procedure to ensure no data remains in<br />

ECM fault memory.<br />

I Probable cause<br />

14 I Ignition signal - no signal I Wiring, ignition amplifier, ECM<br />

16<br />

21<br />

22<br />

Crankshaft position (CKP) sensor, camshaft position (CMP)<br />

sensor 1 8 2 - no signal<br />

Crankshaft position (CKP) sensor, camshaft position (CMP)<br />

sensor 1 8 2 - no sianal over 1000 mm<br />

24 ( Intake air temperature (IAT) sensor - openlshort circuit I Wiring, IAT sensor, ECM<br />

25 I Weak mixture I Wiring, H02S 1, ignition system, ECM<br />

27<br />

3 1<br />

Transmission control signal<br />

Heated oxygen sensor (H02S) 1<br />

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

-<br />

Heated oxygen sensor (H02S) 2<br />

Mass air flow (MAFI sensor - shodopen circuit<br />

Wiring, CKP sensor, CMP sensor I & 2,<br />

starter motor, ECM<br />

Wiring, valve timing, CKP sensor, CMP<br />

sensor I & 2. ECM<br />

Wiring, ECM<br />

Wiring, H02S 1, ECM<br />

Wiring, ECT sensor, ECM<br />

Wiring, H02S 2, ECM<br />

Wiring, MAF sensor, ECM<br />

-IEng~ne management 625<br />

P

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