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P2716 Pressure control solenoid D electrical

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6.3K views 6 replies 5 participants last post by  eric06siennale  
#1 ·
Good morning, fellow Sienna enthusiasts

I have a 2004 Sienna CE with 220k.
All maintenance is up to date including the second timing belt and water pump job just a few weeks ago (easier than I remember from the first time).
I woke up this morning to find a CEL and a quick check with my code reader revealed a P2716 DTC.
It looks like a line pressure solenoid in the transmission pan, but there are multiple solenoids within the valve body.
My question is, how to properly diagnose and find the solenoid in question and meanwhile, drive it without doing any damage.
If anyone out there has any experience with this and can provide some insight, I would deeply appreciate it.
I have been a longtime lurker and a tinkerer but by no means an expert, hence my request.
I know many tackle their vehicles and appear to be quite knowledgeable on this site (Sixto comes to mind), so I'm hopeful I'll get some answer and figure this out.
I thank you in advance and I look forwardi to any feedback.

Jae
2004 Sienna CE 220k
2011 Tacoma SR5 130k
Sarasota, FL
 
Discussion starter · #3 ·
Nothing blatantly obviously nor did it make any unusual noises. I'll clear the codes and see if I notice anything on a short drive.
Thanks for the tip.

Jae

Clear the code and see how long before it recurs. Ideally it’s a one time hiccup. Does anything feel different?

If it needs a solenoid, consider replacing all solenoids for good measure. I say that without knowing what Toyota solenoids cost. At least replace all solenoid seals.

Could also be bad wiring or a bad TCM/PCM.

Sixto
‘04 LE FWD 230K miles
Nothing
 
Discussion starter · #6 ·
An "it's not stupid if it works" suggestion is to make sure the battery connections are clean and tight and make sure both battery and alternator are working fine according to the free parts store tests. Low electric power or fluctuating charging can cause sensors to throw random flaky codes. Before changing out solenoids, I'd probably also suggest doing a drain and fill. It shouldn't hurt, it may fix the issue and, even if it doesn't, it'll just give you slightly cleaner fluid to work with when you do replace a solenoid (if that's what the problem actually is).
An "it's not stupid if it works" suggestion is to make sure the battery connections are clean and tight and make sure both battery and alternator are working fine according to the free parts store tests. Low electric power or fluctuating charging can cause sensors to throw random flaky codes. Before changing out solenoids, I'd probably also suggest doing a drain and fill. It shouldn't hurt, it may fix the issue and, even if it doesn't, it'll just give you slightly cleaner fluid to work with when you do replace a solenoid (if that's what the problem actually is).
I

I've done drain and fills on the transmission since 60k. And then every 30k since then.
Thanks for the tips. I cleared the codes and it has not reappeared. Yet. Here's to hoping.

Jae