Two problems related to wiring have been reported for the 2002 Volvo S60. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Volvo S60 based on all problems reported for the 2002 S60.
Service lights scroll in sporadic motion flipping through constant alerts, check engine light, air bag light, constant electrical problems going on, fuel door wont open, both front seats have electrical problems, obvious burn thru on passenger side indicates its been overheated and dangerous. Everytime I've taken it in the shop they say there are no recalls - yet plenty of complaints over fires with seats. Can't used heated seats at all. Engine seems to remain inconsistent in speed, dashboard lights go completely out and the electrical issues affect back brake lights. The electrical issues bounce in cycles to where no one can detect the problems. Check engine line continues to have to be reset and service lights continually send scrolled warning to pull over. Already had vehicle towed and can't trust vehicle will start. Always a wiring issue involved. The car is in the shop now again. 3/16/18 (same issues).
Bulb position failure error message. I have brought in the vehicle for service of this problem and was told that no bulbs were out and that they checked all of the connections and everything seemed fine. Two weeks later the same error message is displaying again. Seems many other people are having the same problem and Volvo seems to be just brushing off the issue instead of trying to correc it. Either there is an elecrical problem or a wiring harness problem.