One problem related to underhood wiring has been reported for the 2004 Honda Pilot. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Honda Pilot based on all problems reported for the 2004 Pilot.
While driving, the car went in to four-wheel drive and malfunction indicator light went on, and stayed on even after the car was restarted. I took it in to the dealer, who replaced the knock sensor harness wiring due to rodent damage.