Four problems related to air bag light on have been reported for the 2002 Ford Ranger. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Ford Ranger based on all problems reported for the 2002 Ranger.
Seat belt never stays connected ( pops out) all speeds. (5 yrs) I asked dealer about fixing he said my warranty expired buy a new one (Ford does not care about safety after warranty date) the airbag light will stay on for a week then off for a month then repeat ( 5 yrs) door ajar light has never turned off (maybe it will burn out so I don't see it anymore) tailgate latch replaced 3 times ( dang that cheap plastic) front end realigned numerous times (anti nascar, always turns right) engine shudders bad few times a year(bad gas maybe once, others probably not) coil pack replaced twice (im still under 60,000 miles) rear window leaks also :).
Airbag light came on. Dealer said harness under front passenger seat came undone from moving seat back and forth when entering rear seat of vehicle. They reconnected harness and cleared computer lightcost $162. 50 to reconnect harness . Would like refund from Ford for defect in wiring harness. No new parts involved in fixing problem with harness. I had 48,678 miles guaranteed for 50,000 miles.
My airbag light came on with blinking 4x then 7 times. The Ford dealership said the reason my air bag light came was because the connection was dirty. My question to them was why is their electrical connections in need of cleaning? then they turn around and charge you labor to clean the connection.
While driving at 30-mph, the passenger's side air bag deployed. Fifteen minutes prior to air bag deployment, the air bag light indicator flashed then it stayed on. The consumer stated the brakes failed to stop the vehicle, minutes later the driver side air bag deployed and the vehicle hit a wall.