AHC Error code S307-82

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Aug 1, 2025
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so having replaced an AHC hose and shock im now dealing with an issue possibly electrical?

there has previously been and error code for the rear ride height sensor. however i took that out and cleaned it. cleared the code on techstream and scanned a few times, it hasn't re appeared, so shouldn't be the issue?
the car refuses to pump to fill the new hose with fluid and bring itself back up to ride height. when i plug into techstream i get no error codes. when i try to run an active test it spits out the error "S307-82 ecu cannot preform the requested active test".
what could be causing this behavior?
ive tested all the fuses and relays they measure fine. what else should i be looking at/ any info on the specific error code?
 
Did you bleed everything properly following your repairs? I know the AHC systems are fairly finicky. Admittedly, I do not have AHC or any first hand experience, but if you open a sealed system and don’t purge air, you will inevitably have problems.
 
Did you bleed everything properly following your repairs? I know the AHC systems are fairly finicky. Admittedly, I do not have AHC or any first hand experience, but if you open a sealed system and don’t purge air, you will inevitably have problems.

I've read through and followed Toyota's docs for bleeding the system.
I'm unable to bleed the system as the pump doesn't run so hasn't primed it. I've cracked the bleeders open and nothing. No fluid is drawn down.
Hence the question about the code, could it have something to do with pump not running.
 

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