One problem related to ignition switch has been reported for the 1996 Mazda 626. The most recently reported issues are listed below.
The contact owns a 1996 Mazda 626. While driving, the check engine sensor light suddenly illuminated and the instrument panel lights would not illuminate. The vehicle was taken to an independent mechanic who diagnosed that the ignition switch wire harness was faulty and needed to be replaced. The wire harness was replaced. Approximately six months later, the vehicle experienced the same failure. While operating the vehicle, the engine head gasket malfunctioned. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 165,000.