My 2000 Tacoma has a cruise control, and it will work occassinally. Can't seem to correlate anything with the failure. it will work great for a few miles then just quit. Any suggestions on how I might troubleshoot this problem would be appreciated...
Thanks in advance for the posts...
NJ
Strangely, check the brake light switch. If it is adjusted too "tight", even a minor tap or even vibration will cause it to be triggered, which drops the cruise to off. Brake light issues are a prime culprit if you can immediately reset the cruise control (by pressing the resume or set button) and it works again for awhile. If you need to turn the cruise control back "on" each time, it may be more likely the switch matrix, connectors or wires going up into the column.
(An illegal, but fairly quick method of testing the brake light switch would be to pull the brake light fuse and run over an area of road where the cruise control typically stops working. IF it works with the breaklight fuse out, you know a maladjusted switch is probably causing the problem. Bear in mind that if you do this you will have no brake lights, so you'd need to do this when there isn't any traffic to deal with.)
Another strange little possibility is if you have a trailering kit installed (which has a brakelight/turn signal combiner block so the euro style separate brake light and turn signal circuits are combined for single lamps used on most trailers). In some instances, if this block fails, it can feed turn signal voltage to the brake light circuit, which causes the cruise control to drop out because it thinks you stepped on the brake. Another really odd failure is if you are running with lights on and the block has an intermittent short from tail lights to brake lights. (same result, the cruise drops out.)
Good Luck!
--Rick
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