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

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T OWTA Model: Celica<br />

Year: 1995-99<br />

Immobilizer<br />

I<br />

Underbonnet, LH<br />

General information<br />

0 Refer to the front of this manual for general test conditions,<br />

terminology, detailed descriptions of wiring faults <strong>and</strong> a<br />

general trouble shooter for electrical <strong>and</strong> mechanical faults.<br />

<strong>Trouble</strong> codes are displayed by using an analogue voltmeter<br />

connected to the data link connector (DLC).<br />

Accessing<br />

Ensure ignition switched OFF.<br />

Remove ignition key.<br />

Connect analogue voltmeter between data link connector<br />

(DLC) terminals as follows:<br />

Connect voltmeter negative (-) terminal to DLC terminal El m.<br />

Connect voltmeter positive (+) terminal to DLC terminal<br />

OP3 I<br />

NOTE: An LED with an activation current of 10-20 rnA can also be<br />

used.<br />

Insert ignition key.<br />

Count voltmeter needle deflections. Note trouble codes.<br />

Compare with trouble code table.<br />

If no trouble codes are output: Check fuses.<br />

Each trouble code consists of two groups of one or more<br />

needle deflections O.<br />

A 1,5 second pause separates each trouble code group rn [C].<br />

Voltmeter needle deflection duration: 0,5 second rn [A].<br />

A 0,5 second pause separates each deflection [Bl.<br />

A 2,5 second pause separates each trouble code rn [D].<br />

A 4,5 second pause follows the last trouble code, before<br />

they are repeated.<br />

Rectify faults as necessary.<br />

Erasing<br />

Rectifying faults erases trouble codes.

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