I'm in the process of overhauling my rear underchassis and came across a module. It's mounted on the rear beam and connects the rear beam to the left lower arm. Anybody knows what this is? Have been browsing the net for days with no luck. Brand of the module is Aisin.

 

Don:t touch it!!!!!11!

 

It's probably EVAP stuff. Rear left has a ton of that stuff, charcoal canister, etc.

 

Too late. Brought it down and cleaned it. I'm pretty sure it doesn't have anything to do with the emissions (fuel) system. It looks like an actuator mounted on the rear subframe w/the other rod like end connected to the rear lower arm. Seems pretty OE since it is only the left lower arm that has mounting provision (2x10mm bolts) the right lower arm doesn't. Can't say if it's an actuator or a sensor since the factory service manual doesn't mention it.

It's made of plastic, so chances are it doesn't modulate but rather senses the movement of the lower arm. But for what reason??? And only on one side??? Can't seem to find literature mentioning this.

 

pics?

 

Pics would definitely be helpful. I've been under mine MANY times and what you are describing still sounds like EVAP stuff. I would be really surprised if Honda installed a suspension travel sensor. Is there vacuum, or a rubber line going to it to actuate the "rod like end"?

 

This is the module



This is it when installed (location on the subframe & lower arm left side)

 

Flux capacitor.

 

what the heck, i've never seen that before. would love to know what the function is.
must be some kinda sensor for the stability control.

 

wat year is ur S?

 

AP1 2000 model one of the very first.

 

did AP1's overseas come with traction control?

 

No got this one from the US had it shipped here. Have no freaking idea what it is. Sensor of some sort. Too flimsy to actuate the lower arm, the thing that puzzles me is there's only one, on the left side.

 

someone on the other forum thinks it a sensor for self-leveling the head lights. seems plausible but i would think they use a digital angle meter for that.

do you know if your head lights have actuator motors in it.

 

http://www.aisin.com/product/automotive/brake/ss.html

Air Suspension System

Maintains Vehicle Height and Level Attitude for Improving Ride Comfort and Stability during Loaded Conditions

* Full Line Product (2 corner to 4 wheel Air Suspension)
* High stability performance with damping force control
* Secure serenity by using air compressor with low noise type

AISIN SEIKI Co., Ltd. Air Suspension System

 

Hmmm sounds plausible, have to look up on literature regarding this (air suspension). However can't seem to find any form of compressor or the like on the vehicle. Might need to trace back where the connection for the sensor went.

 

Well I agree its some type of height sensor..... but its not oem I have never seen that before I will go check 2moro but I am pretty sure thats not oem.

 

I had my doubts also, however seems pretty oem since the left lower arm and rear subframe have mounting provisions also had traced the harness and it goes to the OE rear harness and connects to socket 401 going to the dash, with all three wires showing continuity when traced. I still don't know what it is for.

 

someone put an air suspension system on an S??? That is blasphemy..

 

That is yet to be proven since I can't seem to find any compressor or air device of some sort on the S w/the questionable part. Keep you guys posted will be stripping the dash and do some electrical tinkering later.

 

I don't think it's an air suspension system. It would not just be one one side, that's stupid.