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Old 05-26-2004, 01:12 PM   #1
ronaldwrx
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Join Date: Aug 2002
Chapter/Region: NESIC
Location: ct
Vehicle:
2002 Impreza WRX
Sedona Red Pearl

Default WRX Blinking AT OIL Temp light = ??

A few days back the AT OIL TEMP light was blinking on the WRX maybe 10 miles after starting, the car wasnt being driven hard or up a setep long hill, it wasnt a particularly hot night - the light came on after i stopped at a light and then blink blink blink blink. When i got to my destination and turned the car off the blink was gone after i restarted - I went to the subaru dealer the next day and they said the light has to be blinking in order to read the code, is this true? I looked in the manual and there are a few problems it could have been and wanted to narrow it down ..
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Old 05-26-2004, 01:51 PM   #2
Mulder
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It's like the ECU, even if the light goes out the code is still in memory and can be read. If you have the service manual there is a procedure for reading the codes yourself without the Subaru Monitor, it is done through counting flashes of the light while in a diagnostic mode.
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Old 05-27-2004, 11:46 AM   #3
Hayes
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My understanding is that once the light is on and then goes out that the code is in memory waiting to be read. Go to autozone for a free read. There is also a list of codes and expanations on one of the subaru web sites. I have seen it but, cant remember where it is. edit: SOA had an notice out for a software upgrade for AT light on when there was no problem. Look for a TSB on this as it was covered under Warranty. ed
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Old 05-27-2004, 11:54 AM   #4
Mulder
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Autozone can't read AT codes, they only have OBDII scanners for the engine ECU. But, as I said it is possible to read the code out yourself.
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Old 05-27-2004, 09:44 PM   #5
Hayes
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Thanks Mulder for that info. I am corrected. ed
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Old 05-27-2004, 09:47 PM   #6
DaveM
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2012 Imp Sport Ltd
Camellia Red

Default Codes

See the last page of this PDF for the TCM codes, what part may be at fault, etc.

http://endwrench.com/current/winter04/4eat2.pdf

Dave
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Old 05-28-2004, 02:29 PM   #7
Jon [in CT]
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And see this document for how to "pull" the TCU's trouble code(s).
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Old 01-18-2017, 07:28 PM   #8
BugEye209
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My At Oil Temp light started blinking after i floored it a little but once home I turned off the car and the light was gone. Any Ideas what could be wrong?
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