I just bought my 2005 evo ssl earlier in the week. Car has just under 100k on it and its great

I have done a lot of reading on this problem and know there are many things that can cause it...but i noticed my problem is slightly different.

Problem:
All three lights are on (tarmac, gravel, and snow). there is NO abs light on (doesn't even come on when the key is in the ON pos). also, the abs doesn't work. I had the car scanned and it came up as all 4 wheel speed sensors, and a vehicle speed sensor. I checked to make sure the previous owner didn't unplug the speed sensors or anything like that.

what I've checked
-adjusted the tps
-checked fluid
-reset g-sensors

when i start the car i can choose which acd mode i want it in. Then i can drive it for a half mile or so before all three lights come on.

Will a bad vehicle speed sensor cause all this?

TIA, Eric

 

There are a lot of sensors that can trigger the ACD lights to go on. If you got your car scanned and the 4 wheel speed senors and vehicle speed sensor went on, go wiggle the sensors and see if the lights come on.

The 4 wheel speed sensors are often the ones to trigger the ACD lights.

 

thats what i've been reading. a vehicle speed sensor being bad can cause all four sensors to read bad though right?

I already ordered the sensor...just waiting for it to come in

 

also check 2 g-sensors located in the console where the handbrake is. I know it trigered my acd lights when I accidentally moved them a bit. Just unplug, re-plug and make sure they are tight, then see if it fixed it.

 

i just reset those sensors and there is no change.

 

UPDATE

went to the dealer
codes are.....
front right wheel speed sensor
both rear wheel speed sensors
wheel/tire size off
vehicle speed sensor

pump tested good
abs module is good

this is a new car so i don't know what size rims the old owner had. I know the speedometer is way off. Would this cause all of my problems??

Also the dealer saw the last owner took out the abs light so now with a new bulb that light is on too

 

sounds like you bought a worked car. when you take the tcase out and dont drain it properly the 3 lights come on. could explain why they are on.

 

the tcase should have nothing to do with the speed sensors though

 

playing with the ACD triggers a bunch of things, the speed sensors being one of them!

 

hmm interesting...do you suggest i bleed the fluid? or should i be doing something else. I know right before i got the car the trans was replaced.

 

i just bleed it. I got some bubbles out of it. The abs light is still on as soon as i start the car though. The acd lights all come on after 1/4 mile of driving