SUBARU LEGACY 1997 Service Repair Manual

G3M0151
3) Turn ignition switch and select monitor switch ON.
4) After display is shown, press slash“/”key.
5) After AT mode is displayed, press function“[0]”.
(Display returns to AT mode when slash“/”is pressed during
on-board diagnostic operation.)
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4. READ TROUBLE CODE SHOWN ON DISPLAY.
1) Connect select monitor.
2) Designate mode using function key.
Press [F] [B] [0] [ENT] in that order.
3) Ensure trouble code(s) is shown.
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5. PREVIOUS TROUBLE CODE READING
1) Connect select monitor.
2) Designate mode using function key.
Press [F] [B] [1] [ENT] in that order.
3) Ensure displayed trouble code(s).
C: USING AN OSCILLOSCOPE
A malfunction can be determined by displaying the waveforms
of input/output signals on the oscilloscope.
1. DIAGNOSIS
A simple comparison of the waveforms may lead to an incor-
rect diagnosis. To exactly determine the sources of the mal-
function it will be necessary to determine them under consid-
eration about information other than waveforms.
2. APPLYING INPUT/OUTPUT SIGNALS
Connect the probe directly with the terminal of the signal.
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[T4C2] FOREWORDFOREWORD
4. Diagnosis and Checking Procedure Using Instruments

Important safety notice

Providing appropriate service and repair is a matter of great importance in the serviceman’s safety maintenance
and safe operation, function and performance which the SUBARU vehicle possesses.

In case the replacement of parts or replenishment of consumables is required, genuine SUBARU parts whose
parts numbers are designated or their equivalents must be utilized.

It must be made well known that the safety of the serviceman and the safe operation of the vehicle would be
jeopardized if he used any service parts, consumables, special tools and work procedure manuals which are
not approved or designated by SUBARU.
All right reserved. This book may not be reproduced
or copied, in whole or in part, without the written
permission of FUJI HEAVY INDUSTRIES LTD.,
TOKYO JAPAN.
SUBARU,
andare trademarks of
FUJI HEAVY INDUSTRIES LTD.
© Copyright 1996 FUJI HEAVY INDUSTRIES LTD.
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