ACD Article - Answers for everybody!
Dec 22, 2009, 07:02 PM
#242
Newbie
iTrader: (1)
Join Date: Dec 2009
Location: Louisville KY
Posts: 66
Likes: 0
Received 0 Likes
on
0 Posts
Great write up, more info than my head can absorb in one setting.
Something to add for the 3 ACD lights... I had been having the same problem on and off, after looking, reading, and mostly worrying I have discovered something weird.
For mine anyway, I only get the 3 lights when I use the wipers. Cold, hot, wet, or dry it doesn't matter. Everytime I hit the wipers, at the end of the first downward stroke of the wipers, all three lights light up and stay lit until I turn the car off. If I start the car again, with everything else being the same, and do not hit the wipers, only the one light stays lit as it should.
Anyone else having these issues possibly with the same common denominator? Any suggestions?
Something to add for the 3 ACD lights... I had been having the same problem on and off, after looking, reading, and mostly worrying I have discovered something weird.
For mine anyway, I only get the 3 lights when I use the wipers. Cold, hot, wet, or dry it doesn't matter. Everytime I hit the wipers, at the end of the first downward stroke of the wipers, all three lights light up and stay lit until I turn the car off. If I start the car again, with everything else being the same, and do not hit the wipers, only the one light stays lit as it should.
Anyone else having these issues possibly with the same common denominator? Any suggestions?
Dec 23, 2009, 07:07 AM
#243
Evolved Member
iTrader: (11)
Join Date: Jan 2008
Location: Your mamy's bedroom
Posts: 1,155
Likes: 0
Received 0 Likes
on
0 Posts
Great write up, more info than my head can absorb in one setting.
Something to add for the 3 ACD lights... I had been having the same problem on and off, after looking, reading, and mostly worrying I have discovered something weird.
For mine anyway, I only get the 3 lights when I use the wipers. Cold, hot, wet, or dry it doesn't matter. Everytime I hit the wipers, at the end of the first downward stroke of the wipers, all three lights light up and stay lit until I turn the car off. If I start the car again, with everything else being the same, and do not hit the wipers, only the one light stays lit as it should.
Anyone else having these issues possibly with the same common denominator? Any suggestions?
Something to add for the 3 ACD lights... I had been having the same problem on and off, after looking, reading, and mostly worrying I have discovered something weird.
For mine anyway, I only get the 3 lights when I use the wipers. Cold, hot, wet, or dry it doesn't matter. Everytime I hit the wipers, at the end of the first downward stroke of the wipers, all three lights light up and stay lit until I turn the car off. If I start the car again, with everything else being the same, and do not hit the wipers, only the one light stays lit as it should.
Anyone else having these issues possibly with the same common denominator? Any suggestions?
It would be a $14 expiriment.
Jan 30, 2010, 11:12 AM
#245
Newbie
Join Date: Jan 2010
Location: Amsterdam, The Netherlands, Europe
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Hello,
I have a problem with my ACD. De three lights pop up after taking a corner. U can drive miles straight without it ever popping op, taking the first corner off the highway it pops up.
I went to a Mitsu dealer and they read the ACD/AYC unit. I gives code 46. After doing some search it seems that code 46 stands for Pressure unit Sensor (Open Ground). Awhile ago i found a document where it stated that the trigger for code 46 was that the sensor gave a output to the ECU higher than 2V. I can't find that specific document. It was somekind of troubleshoot regarding ACD.
First i called a specialist. They told me to turn on the ignition and press the gas pedal. Now you can hear the pump(10s). Now turn off the ignition wait a couple of minutes and do it again. Now the pump should only be pumping a couple of seconds (2-3s). That means that the pump is working ok because its not leaking pressure.
Today, I cleaned all the connector on the ACD pump including the connector of the Pressure sensor. All was is good state. But still the three light popped up after taking the first corner. There is still enough fluid in the reservoir. Now i have a couple of questions:
Is the pressure sensor a sensor that gives more voltage when the pressure rises or when its lowered. Example: 10 bar = 0.5v 20bar = 2.0v OR 10 bar = 2.0v 20 bar = 0.5v..?
Does anyone know which (troubleshoot)document I am referring too and has it?
Does anyone have a suggestion?
I have a problem with my ACD. De three lights pop up after taking a corner. U can drive miles straight without it ever popping op, taking the first corner off the highway it pops up.
I went to a Mitsu dealer and they read the ACD/AYC unit. I gives code 46. After doing some search it seems that code 46 stands for Pressure unit Sensor (Open Ground). Awhile ago i found a document where it stated that the trigger for code 46 was that the sensor gave a output to the ECU higher than 2V. I can't find that specific document. It was somekind of troubleshoot regarding ACD.
First i called a specialist. They told me to turn on the ignition and press the gas pedal. Now you can hear the pump(10s). Now turn off the ignition wait a couple of minutes and do it again. Now the pump should only be pumping a couple of seconds (2-3s). That means that the pump is working ok because its not leaking pressure.
Today, I cleaned all the connector on the ACD pump including the connector of the Pressure sensor. All was is good state. But still the three light popped up after taking the first corner. There is still enough fluid in the reservoir. Now i have a couple of questions:
Is the pressure sensor a sensor that gives more voltage when the pressure rises or when its lowered. Example: 10 bar = 0.5v 20bar = 2.0v OR 10 bar = 2.0v 20 bar = 0.5v..?
Does anyone know which (troubleshoot)document I am referring too and has it?
Does anyone have a suggestion?
Jan 31, 2010, 03:34 AM
#246
Newbie
Join Date: Jan 2010
Location: Amsterdam, The Netherlands, Europe
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Yes i found the document regarding the ACD trouble code. This document does also contain all the error codes and possible steps to take to solve them... PM me if u would like the document...
Now lets see if it works for me...
Now lets see if it works for me...
Feb 4, 2010, 01:17 PM
#247
Newbie
Join Date: Jan 2010
Location: Amsterdam, The Netherlands, Europe
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Does anyone have any input regarding my question?
Is the pressure sensor a sensor that gives more voltage when the pressure rises or when its lowered. Example: 10 bar = 0.5v 20bar = 2.0v OR 10 bar = 2.0v 20 bar = 0.5v..?
Is the pressure sensor a sensor that gives more voltage when the pressure rises or when its lowered. Example: 10 bar = 0.5v 20bar = 2.0v OR 10 bar = 2.0v 20 bar = 0.5v..?
Feb 6, 2010, 10:35 AM
#250
Newbie
Join Date: Jan 2010
Location: Amsterdam, The Netherlands, Europe
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Here is some valuable info for people having problems with their ACD. Here are the fault codes and their explanation. Monday i'm going to test all the wiring regarding my ACD problem. I'll keep u guys updated...
Feb 19, 2010, 02:27 PM
#253
I've tried searching to no end, and now I need help guys. Brief history, car has 22k miles, never had any type of ACD issues/occurances before. Car has sat in garage for a few months due to winter, have done upgrades to engine, test drove car and everything was perfect. Car sat another 2 weeks, decided to upgrade gauges, did so all while battery being disconnected to be safe, started car today and have all 3 lights on. Now I start car, normal ACD light on Tarmac like always, after about 5 minutes or so of sitting there idling, all 3 lights turn on and stay on. I dont drive the car, I dont rev the engine... just sit there and idle and after 5 or so minutes all 3 turn on. I turn off/turn back on and does the same thing, starts off good, then after 5 or so min, all 3 back. I need help, I'm going to preform the relay test tomorrow with a multimeter, but does anyone have a troubleshooting guide in general I can preform for the ACD, or any suggestions in general. All wheel sensors were 100% untouched, 60amp ABS fuse is fine. I've tried turning the power on and holding accel pedal to floor to hear if pump comes on, while doing this the 1 tarmac light is on like normal, but about 30 seconds after depressing pedal and hearing nothing, I hear the relay click and then all 3 lights come on which is why I'm gonna test it tomorrow. Just as a side note, the car is still on the stock clutch and the ACD fluid level is fine.
::EDIT:: Found it thanks to grounding the upper lefthand pin and counting the flashes method. Found a bad ground wire, everything is all better now.
::EDIT:: Found it thanks to grounding the upper lefthand pin and counting the flashes method. Found a bad ground wire, everything is all better now.
Last edited by EvoooB; Feb 23, 2010 at 04:39 AM.
