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Registered
1998 S Automatic
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7 Posts
Discussion Starter · #1 ·
Can someone point me to where I can get the codes for the AT OIL TEMP light diagnostic? I have a 1998 Forester.

We did the diagnostic routine (below) and ended up with codes 23 and 24. For the life of me I can't find a description of the codes.

Thanks.

1) Warm up the engine
2) Turn the ignition switch OFF
3) Turn the ignition switch ON
4) Start the engine
5) Drive the vehicle at speeds greater than 12 MPH
6) Stop the vehicle
7) Depress the brake pedal and move the gear selector to "1"
8) Turn the ignition switch to OFF
9) Turn the ignition switch to ON
10) Move the gear selector to "2"
11) Move the gear selector to "1"
12) Move the gear selector to "2"
13) Move the gear selector to "3"
14) Move the gear selector to "D"
 

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Registered
1998 S Automatic
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7 Posts
Discussion Starter · #3 ·
Guidance and shop manual

Thanks. That was VERY helpful. So that begs the next question: Can anyone clue me in on what I'm looking for? Disconnected wires?

23 Engine speed signal. No signal input above 10km/h
24 Transfer duty solenoid. Short or disconnection in solenoid driving circuit

Since I don't have a shop manual should I buy one OR is one available on-line? If buying is the factory manual or the Haynes better?
 

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Registered
2010 2.5X Manual
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309 Posts
2 codes at once always puts me down the road of wiring and/or grounds.

Check all the connectors, look at all the wires and grounds.

What symptoms are you seeing?

If you clear the codes do they come right back?
 

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Registered
1998 S Automatic
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7 Posts
Discussion Starter · #5 ·
Good advice. I will check for loose wires/plugs.

Question: How does one reset the AT OIL TEMP warning?

RG
 

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Registered
2010 2.5X Manual
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309 Posts
I have always just disconnected the battery.
If you don't want to reset the ecu and radio etc you can pull the connectors to the TCU, or pull the fuse that supplies the non-switched battery power to it (I have no idea which fuse).
 
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