AHC error code C1712 (1 Viewer)

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MrA

Joined
Jan 18, 2023
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3
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Hey all,

Connected Techstream to my 2001 LX for the first time yesterday in preparation for refreshing my AHC. The original plan was to replace all the globes, new fluid, etc. When I navigated to the AHC menu, I found this code: C1712 Front Height Control Sensor LH Circuit Malfunction. Can anyone point me in the direction of how to fix whatever that code means?

Thanks so much!
 
According to this thread, it appears my Front Left Height Sensor is bad. Then I found this thread which lists the part numbers for the Height Sensors:


There seems to be quite a lot of info contained within that thread which I'll need to digest. Will also need to grab the Techstream readings of the Height Control Sensors and see how close they are to 0.
 
Here's my techstream right after turning the car on:
TechstreamA.jpg


And here it is after cycling the AHC from L to N:
TechstreamB.jpg


Can anyone confirm that I should be looking to replace my Front Left Height Control Sensor?
 
Swapped out the Front Left Height Control sensor (part #89406-60022) and the error codes seems to be gone. Also, the AHC moves up and down much faster.
 

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