I recently had issue getting my smog certificate with my 03 montero in california. The emissions testing requires a dyno run. The montero traction control would kick in sensing there was a problem that front wheels were not rotating on the 2 wheel dyno. According to the CA booklet on smog, the smog tech should be able to deactivate traction control by manually shutting off skid contol by pressing the button on the center console. Even with skid control off, dyno run could not be completed.

I consulted the Mitsu TSBs and found that 03 and 04 monteros actually have a skid control and traction control as 2 seperate systems. THe only way to shut off traction control is to pull the ABS fuse. See TSB 04-00-0017. Once the fuse is pulled the dyno run could be completed.

Apparently 03 and 04 monteros must be done this way for dyno runs.

the smog test guys should know this also
yours is probably not the first montero they have ever done... i would hope

You would think that the techs would know this... I went to 2 places and both were stumped. What threw them off was that the CA manual on all the cars published incorrect info on the car. The third place confirmed that a fuse must be pulled. I guess when I smogged in the past, I got lucky and found a knowledgeable tech the first time. I just wanted other owners to know this before they spend money diagnosing a problem with traction control that doesnt exist. The first 2 places had me thinking there was a problem with the truck!