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2005 Outback LLBEAN H6
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69 Posts
Discussion Starter #1
Need some advice, 05BEAN w/247K. Codes are:

P0700,(trans control mIL request) P0705 ( transmission range circuit sensor malfunction) P0817 ( Starter Disable Circuit) P0303 (misfire on cyl3) and P0420.



I'm not sure which code to focus on first. The P0420 i have had for a long time and is intermittent so i'm not too concerned about that. I am most concerned about the P0705. Could this be causing the P0303 misfire and the P0817 starter disable circuit?

Checked ATF level is good and condition is good as ~80% changed out within the last couple of months.

The P0700, P0817 and P0420 codes have shown up before but the P0705 is new within the last week.

The CEL now flashes from time to time which scares me. I pull over and shut the car down for a couple minutes when this happens and it restarts OK.

Any help is appreciated.
 

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On the Super Mod Squad
2002 Pair: 3.0 VDC Wag & 2.5 Limited Sedan
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26,195 Posts
disregard the p0420, it will clear when you fix the misfire etc.

when was the last time you changed plugs? subaru like NGK only, and this one takes iridium.
 

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Lawn ornament XT
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14,366 Posts
The occasional flashing light is almost certainly the 303 misfire. That has a good probability of being linked to your p0420 errors, but a very low probability of linkage to the p0705 or p0817.

I don't know p0705 but it's definitely within the transmission. p0700 is just a bonus alert meant for more basic diagnostic readers- you only get it because the p0705 is active.
 

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On the Super Mod Squad
2002 Pair: 3.0 VDC Wag & 2.5 Limited Sedan
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2005 OBXT Limited, VF37, STI intake, 5MT
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1,553 Posts
I'd focus on the P0705 and P0817 codes first. Both intersect at the TCM.

p0817 mentions checking a TCM fuse (interior fuse No.32), which might be also causing the issues with the park/neutral switch.

P0705 has you checking the harness between the TCM and P/N switch.

P0700, as stated earlier, is a generic flag-code and should disappear with the resolution of both the other P0705 and P0817 codes.
 

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2005 Outback LLBEAN H6
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69 Posts
Discussion Starter #6
disregard the p0420, it will clear when you fix the misfire etc.

when was the last time you changed plugs? subaru like NGK only, and this one takes iridium.
Plugs were changed two years ago when i did a timing cover re-seal. Used NGK Spark Plug Laser Iridium ILFR6B.
 

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Registered
2005 Outback LLBEAN H6
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69 Posts
Discussion Starter #7
you are getting all those with the GREAT on board diagnostic reader?

this link / post specifically for 2005
https://www.subaruoutback.org/forums/109-gen-3-2005-2009/19053-05-06-09-how-read-diagnostic-trouble-codes-dtcs-2.html#post4461042

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and if you need parts: I would think they would have to be specifically for a 2005-2006 US spec Bean wagon, or outback sedan (without VDC). so check what you are buying before buying it. (JDM stuff may not work correct).
Thank you. Good to know
 

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2005 Outback LLBEAN H6
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69 Posts
Discussion Starter #9
Thank you all. I checked fuse #32 interior with a multi-meter and get continuity. God that would be great it that was it.
 

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'07 Outback 3.0R LL Bean, '74 BMW 2002, '65 Datsun L320, '99 Land Cruiser
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199 Posts
Yeah I would call a tranny dead until there's really horrible noises, really ugly fluid, or lack of propulsion in certain gears, hah. Electronics are an issue all of their own.
 

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2005 Outback LLBEAN H6
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69 Posts
Discussion Starter #11
Update - CEL is off for two days now since testing and re-seating. Still preparing for next step if the same codes come back again.
 
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