One problem related to electrical system has been reported for the 1999 Mazda Millenia. The most recently reported issues are listed below.
Engine light came on again. Computer indicates knock senor, but no engine problem. Light came on after we began using 87 octane instead of mid or premium grade. Was advised it is a bad knock sensor and there is a TSB and repair kit to fix problem. Mazda has apparently changed the knock sensor (due to ongoing problems).
| Car Will Not Start problems | |
| Instrument Panel problems | |
| Ignition Module problems | |
| Electrical System problems | |
| O2 Sensor problems |